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r:
BUSQUEDA EN BASES DE DATOS DE PATENTES
r:
PATENTES RELACIONADAS CON EL PROYECTO
MEDIDOR DE LOS INDICADORES DE CAUDAD DEL SERVICIO DE ENERGIA
ELECTRICA (DES V FES) PARA USUARIO RESIDENCIAL
Palabras c1aves utilizadas en la busqueda:
r:
1. Medidor de calidad : QUALITY AND METER
2. Registrador de calidad : QUALITY AND RECORDER
3. Calidad del servicio: QUALITY AND SERVICE
4. Calidad de la potencia electrica: ELECTRICAL AND POWER AND QUALITY
5. Equipo de medici6n de calidad : QUALITY AND MEASUREMENT AND EQUIPMENT
6. Calidad de la energia electrica : ELECTRIC AND POWER AND QUALITY
7. Interrupci6n del servicio: INTERRUPTION OF SERVICE
8. Arm6nicos: HARMONICS
9. Regulaci6n de voltaje : VOLTAGE AND REGULATION
10. Medidor de DES y FES: DES AND FES AND METER
1. Busqueda en la SUPERINTENDENCIA DE INDUSTRIA V COMERCIO:
~ Direcci6n:http ://190 .254 .15 .230/~oparra/externas/DetallePatentenuevo.php?consult
ando=patentescolombianas¶metros=numero&vano=3&vnum=93093&vcon=&vc
ons=O
Palabra clave: Interrupci6n servicio
Nro. Publication: 186 Gaceta: 541 Solititud: 3 93093
Tipo : Patente Colecci6n : COLOMBIA Titulo: SISTEMA DE MEDICION Y ANAuSIS DE LA CAUDAD DE
LA ENERGIA ELECTRICA.
Fecha de publicaci6n : 2004-06-30
Autores:
Apoderado GOMEZ CARDENAS CARLOS FERNANDO
ApoderadoJORGE ARTURO QUINONES SERRANO
Inventor GOMEZ CARDENAS CARLOS FERNANDO
Solic itante SOLUCIONES EN COMUNICACIONES Y SOFWARE
Clasificaci6n:
Numero Pais
G06F 017/060 Internacional
Resumen: 1.- EI Sistema de Medicion y Analisis de la Calidad de la Energia Electrica, referido al
numero de interrupciones y al tiempo total de duracion de estas, es un sistema integrado
hardware-software que esta conformado por: el dispositivo que permanece conectado a la red de
energia electrica y mide el tiempo que dura las interrupciones del suministro de energia electrica,
registrando estos intervalos en su memoria, a este aparato se Ie llama METROSEI\JSOR DE ENERGfA
ELECTRICA (M .E.E) y, el aplicativo de lectura, manejo y analisis de la informacion, se Ie llama DES
FES LECTOR. Es un Sistema concebido para hacer el seguimiento y analisis de la calidad de la
Energia Electrica directamente en los usuarios c1ientes de un determinado Operador de Red,
caracterizado, porque mide el numero de interrupciones y reconexiones del suministro de energia
electrica y el tiempo total de duracion de estas, registrando cada lnterr upcion y reconexion de la
energia electrica en la memoria del METROSENSOR DE ENERGfA donde se almacena la
informacion. EI METROSENSOR DE ENERGfA posee adernas un sensor transductor para discernir si
hay 0 no hay energfa electrica en la red . EI DES-FES LECTOR es el software aplicativo que se instala
en un computador personal que permite leer los datos almacenados en la memoria del M . E. E. e
interpreta los valores a un formato de fecha y hora reconociendo adernas si hubo un corte 0
reconexion de energia. Realiza el calculo del nurnero total de interrupciones y del tiempo total de
ausencia de energfa electrica. Muestra graficas y guarda la informacion en una base de datos.
Adernas, actualiza la nueva fecha y hora que tendra el microcontrolador como referencia para
reiniciar su funcion de almacenamiento de interrupciones y reconexion del servicio de energia
electrica.
La informacion almacenada en la memoria del M .E.E. se extrae a ,' ''';;-- .1 I~~. _-_.... ' I
~. ..... .~ . ""......,. ' .
.... ~ .~traves de una interface que se conecta al puerto paralelo de un I....... ~ N:
, l : •.•• •~~-l>l i'-_ . ·..~ 1 ... ... ·_ . l'l ,.. . ... ... ~"' .• i - :. ...-·· · :. ....I ft ,computador personal. Los datos son leidos por el DES-FES ;.~. il I! ._., / ! _ "~I ' l .
LECTOR para su posterior analisis y procesamiento.
~ Direccion:http://190 .254.15.230/~oparra/externas/DetallePatentenuevo .php ?consult
ando=patentescolombianas¶metros=numero&vano=l&vnum=83918&vcon=&vc
ons=O
Palabra clave: Calidad servicio
Nro. Publicacion: 556 Gaceta: 531 Solicitud: 1 83918
Tipo: Patente Coleccion: COLOMBIA Titulo : REGISTRO DE CONTINUIDAD DEL SERVICIO
HECTRICO. Fecha de publ icacion: 2003-08-29
Autores:
Apoderado SANCHEZ CASTILLO ABDON
Inventor JULIO SUAREZ DOMINGUEZ
Solicitante EDEC SA
Clasificacion:
l\Jumero Pais
G01R 011/016 Internacional
- - I
Resumen: Construcci6n de un equipo electr6nico capas de registrar el nurnero de interrupciones
en el suministro de energfa electrica asf como la duraci6n de estas, sufrido por los usuarios de las
empresas de energfa.
En la actualidad y como producto de una nueva regulaci6n por parte del estado Colombia no hacia
las empresas prestadoras del servicio de energfa, estas se han visto en la necesidad de
implementar el registro de las suspensiones del servicio de energfa que sus c1ientes sufren. La
finalidad perseguida con esta norma es el cumplimiento de indicadores mfnimos enmarcados en
un estandar de calidad, de manera tal que sea obligaci6n de las empresas la compensaci6n en
dinero para aquellos c1ientes que se han visto privados del suministro de energfa electrica en un
nurnero mayor de veces 0 al tiempo al establecido como permisible.
A la fecha el registro de las suspensiones del servicio es lIevado de forma manual mediante la
utilizaci6n de planillas ubicadas en las subestaciones electricas pertenecientes a las empresas de
energfa, sin embargo por 10 dispendioso del registro 0 por la falta de personal no es posible lIevar
este mismo control por usuario individual
objetivo final de la regulaci6n y solamente son
reportadas las fallas vistas en el total de un
circuito 0 ramal. EI problema del no registro
individual de estas fallas reside principalmente en
la inexistencia de un equipo disefiado
espedficamente para este fin, con la flexibilidad
para adecuarse a las normas cambiantes de la fj
I:_oec".,.regulaci6n y del tarnafio y caracterfsticas
electricas requeridas para la instalaci6n en el
ambito de usuario final.
2. Busqueda en la Base de Datos ESP@CENET:
).> Dlrecclon:http://v3.espacenet.com/publicationDetails/biblio?DB=EPODOC&adjacent=
true&locale=en_EP&FT=D&date=19920107&CC=JP&NR=4002972A&KC=A
Palabra clave: METER AND INTERRUPTION AND SERVICE
COMPENSATING EQUIPMENT OF INTERRUPTION OF SERVICE FOR ElECTRONIC WATT-HOUR
METER
Inventor: SUZUKI SHIGEHISA
Applicant: TOSHIBA CORP
IPC: G01R22/00; G01R22/00; (IPCl-7): G01R22/00
Publication JP4002972 (A) - 1992-01-07
Priority Date: 1990-04-20
Publication number: JP4002972 (A)
Publication date: 1992-01-07
Inventor(s): SUZUKI SHIGEHISA ±
Applicant(s): TOSHIBA CORP ±
,-
Classification:
- international : G01R22/00; G01R22/00; (IPCl-7) : G01R22/00
- European:
Application number: JP19900103122 19900420
Priority number(s): JP1990010312219900420
Abstract of JP 4002972 (A)
PURPOSE :To make it possible to know the states of charge and discharge of an accumulator at
all times by a method wherein, when the interruption of service of a commercial power supply
or the start thereof is detected by a detecting means, a control of a time of discharge or charge
of the accumulator is conducted from the time point of detection as a start point and the result
of the control is displayed. CONSTITUTION:When the interruption of service of a commercial
power supply occurs, an Ni-Cd accumulator 4 discharges electricity under the control of a
charge-discharge control element 5, and it is supplied as an output of a backup power source of
a central control element 2 and a display element 3. At this time, the interruption of service is
detected by a detecting element 6 of service
r ' .....
start and service interruption and a detection
signal is inputted to the central control
element 2. In the control element 2, a timer
2A is started, measurement of a time of
discharge of the accumulator 4 is started
from the time point of detection of the
interruption of service as a start point by a
timemeasuring means 2-11 and the result is
displayed 3 through a display control means
2-13. Besides, a signal of the time of
discharge measured by the measuring means
2-11 is inputted to a determining means 2-12
and it is determined whether a set time of
discharge is reached or not. When the set
time of discharge is reached, an alarm
display is made in stages in accordance with the passage of the time of discharge of the
accumulator 4 in the display element 3 through the control means 2-13.
~ Direccion:http ://v3.espacenet.com/publicationDetails/biblio?DB=EPODOC&adjacent=t
rue&locale=es Ip&FT=D&date=20060330&CC=US&NR=2006066456A1&KC=A1
Palabra clave: METER QUALITY AND ELECTRICAL
Revenue meter with power quality features
Numero de patente: US2006066456 (Ai)
Fecha de publicaci6n: 2006-03-30
Inventor(es): JONKER RENE T rCA]; PRZYDATEK PIOTR B rCA]; GUNN COLIN N [CAl; TEACHMAN
MICHAEL E [CAl; ANTONIOU CONSTANTINE A [CAl +
Solicitante(s) : POWER MEASUREMENTLTD
Clasificaci6n:
- internacional: G08B23/00; G08C15/06; G08B23/00; G08C15/00
- europea: G01R21/133
Nurnero de solicitud: US2005020892620050822
Numerots) de prioridad: US20050208926 20050822; US20030622000 20030716;
US2002023396220020903; US1999037031719990809
Resumen de US 2006066456 (Ai)
Power quality detection, monitoring, reporting, recording and communication in a revenue
accuracy electrical power meter is disclosed. Transient events are detected by monitoring the
wave shape of the electrical power and comparing deviations to a known threshold. Sags and
Swells are detected by computing root mean square value over a rolling window and comparing
the computed value with a known threshold. Harmonic frequencies and symmetrical components
are quantified by a known algorithm and :"
compared with a known threshold. '; ;' ,.;. '.~ '_ .r.: ': ; ":..~~::";""'
Incoming waveforms are stored to '--;"':"'1' , ~ - ~ . " · ·~·;''''U : ..~;~: , .J ' . ~
memory. All recorded and computed data ' t ~ - -j I . ' - - '.
is moved to non-volatile storage via direct i ,-_ . -]. ' . , ;' '::.!:.~p: ' -:; - l _ [-'-1
i i : -i.= ," : ~A "",,, , _ f' .'" I :
memory access transfer in the event that .l-_ ===--L ~ ~ 1 . noo ; [ - - _ ~-lLL.l-- , - ! ".. l "'~:'~~h ~i I
a power quality event jeopardizes the - ' - -- ' --' '0"'''' ' ,- . :' I I Ii .. _...._ _..J
operating power of the meter.; Further, i ~ Iii- i--i ~;:;~::· i--:--.J , - _.. "-'-''' ~
the meter provides a power supply L..j-H-'- ;--~ _'" "' .-;;;-- ...J I
utilizing high and low capacitive storage II-~~=-i.""" ., ...e : • • !- i I:;;.~ ;,---- .,,,
banks to supply sufficient energy to I" "
. f-..
survive short duration power quality I I i ~- - 1:10
events which jeopardize the meter's
operating power.
-,-
Bogota, 9 de Septiembre de 2010
Senores
UNIVERSIDAD DISTRITAL FRANCISO JOSE DE CALDAS
Carrera 7 No. 40-53 Piso 3
Atenclcn: GIOVANNI BERMUDEZ BOHORQUEZ
Bogota, Colombia
Ref: COTIZACION DE SERVICIOS PARA LA BUSQUEDA DEL ESTADO DE LA
TECNICA, ELABORACION DEL DOCUMENTO DE SOLICITUD DE PATENTE Y
PRESENTACION EN COLOMBIA COMO PATENTE DE INVENCION 0 MODELO
DE UTILIDAD PARA UNA UNIVERSIDAD
NUESTRA REF: BOSQUEDAS PATENTES 2010 AG
Estimado senor Bermudez,
De acuerdo con su solicitud del 8 de septiembre de 2010 , a continuaci6n encontrara
nuestra cotizaci6n para la busqueda del estado de la tecnica, redacci6n del documento de
la solicitud de patente y presentaci6n del documento ante la Oficina Colombiana de
Patentes, bien sea como patente de invenci6n 0 como modelo de utilidad .
Con nuestra asesoria especializada usted contara con busquedas realizadas en bases de
datos privadas y un concepto previa sobre la patentabilidad de su desarrollo, con 10 cual si
su invenci6n no es patentable evitara perdida de tiempo y recursos econ6micos.
Igualmente, contar con un grupo interdisciplinario de profesionales en diferentes areas
tecnol6gicas (ingenieria quimica, ingenieria rnecanica, ingenieria electr6nica, quimica y
biotecnologia) y expertos en la redacci6n de defensa de solicitudes de patentes.
1. COSTOS Y PASOS DEL PROCESO:
1.1. Busqueda del estado de la tecnica:
Este primer paso consiste en la busqueda de informaci6n sobre desarrollos similares
previamente reportados y el anal isis comparativo de los documentos hallados con la
invenci6n del cliente, a fin de establecer las posibilidades de exito de la posible patente.
Este servicio puede ser prestado mediante dos modalidades, la primera elias es la
busqueda internacional realizada por Clarke, Modet & Co, Colombia y la segunda requiere
de la busqueda internacional ejecutada por Clarke, Modet & Co, Colombia y la busqueda
nacional efectuada por la Superintendencia de Industria y Comercio.
Para esta actividad es necesario que el c1iente complete un formulario sobre las
PROPIEDAD INDUSTRIAL E INTELECTUAL
ESPANA, PORTUGAL, ARGENTINA, BRASIL, CHILE, COLOMBIA. MEXICO. PERU, VENEZUELA
Bogot a, Medellin . Cali
Clarke, Modet & CO
COLOMBIA
caracteristicas tecnicas de la invenci6n, sus ventajas y novedades. Este formulario Ie sera
remitido tan pronto contemos con su aprobaci6n para la realizaci6n del servicio. Por favor
tenga en cuenta que la calidad de la busqueda dependera de la informaci6n que ustedes
nos suministren.
TASAS
HONORARIOSCONCEPTO IVA 16% OFICIALES TOTAL
560.000 89.600 -0- 649.600Busqueda internacional*
120.000 19.200 175.000 314.200Busqueda Nacional**
* Nuestra recomendaci6n es que para redactar una solicitud de patente sofo se reafice fa
busquede internacionaf, que no cubre informacion sabre Colombia, puesto que ef 95%
de las solicitudes presentadas en nuestro pais han side previamente presentadas en otros
paises.
**Unicamente recomendamos fa realizaci6n de fas dos busquedes si ef solicitante conoce
de un competidor Cofombiano que sea innovador en ef sector
1.2. Redacci6n del documento de solic itud de patente:
Los documentos de patentes deben cumplir con una serie de caracteristicas tanto de
forma como de fondo. EI servicio ofrecido por Clarke, Modet & Co, Colombia comprende
la redacci6n de la solicitud de patente que sera presentada ante la oficina de patente
correspondiente.
Nuestros honorarios dependen del tiempo requerido para la redacci6n del documento. En
promedio se ha establecido que minimo se requiere de 10 horas para consolidar la
solicitud. Siendo asl la inversi6n serla de:
Concepto Honorariosl Horas Subtotal IVA TOTAL
hora
Realizaci6n de
memorias*
260.000 10 2.600 .000 416.000 3.016.000
"En este sentido cobraremos estrictamente ef tiempo empleado y si el numero de horas es
menor ef excedente sera abonado a la siguiente etapa def proceso que es fa presentaci6n
de la solicitud.
1.3. Presentaci6n de la solicitud de Modelo de Utilidad en Colombia:
Por favor tengan en cuenta que las patentes son territoriales as! que es necesario
presentar la solicitud de patente en el pais donde se desea protecci6n.
PROPIEDAD INDUSTRIAL E INTELECTUAL
ESPANA, PORTUGAL, ARGENTINA, BRASIL, CHILE, COLOMBIA, MEXICO, PERU, VENEZUELA
Bogota, Medellin, Cali
2
Clarke, Modet & CO
r: COLOMBIA
Asi las casas, remitimos los costas para optar par la opci6n de presentar la solicitud en
Colombia via Convenio de Paris, can 10 cual tendriamas 12 meses para presentar la
solicitud en los otros 168 paises que son miembros de este Tratado y resulten de su
interes , a la opci6n de presentar una solicitud internacional mediante el Tratado de
Cooperaci6n de Patentes (PCT), la cual debera ser confirmada antes de 30 meses en
cada uno de los paises elegidos.
1.3.1. Costas obligatorios:
TASAS
CONCEPTO HONORARIOS IVA (16%) TOTAL
OFICIALES
Presentaci6n de la solicitud 680.000 108.800 81.250 870.050
Solicitud de examen de
88.000 14.080 77.500 179.580
Patentabilidad *
*Este gasto adicional y posterior es un costa que tiene el tremite necesariamente y es
requisito obligatorio para continuar can el estudio de fonda dela solicitud.
1.3.2. Posibles costas adicionales:
Podrian haber posibles pagos extras par requerimientos oficiales de la Oficina de
Patentes, los cuales se les informaria en el momenta de causarse, sin embargo estos
podrian ser:
TASAS
CONCEPTO HONORARIOS IVA(16%) TOTAL
OFICIALES
Presentaci6n tardia de
documentos (Par cada 96.000 15.360 0 111.360
documento)
,. Solicitud de Pr6rroga de
96.000 15.360 83.000 194.360
terrnino legal
Contestaci6n a
Observaci6n oficial de 200.000 32.000 0 232 .000
forma (Minima)
Modificaciones a la solicitud
240.000 38.400 114.000 392.400
(Minima)
Recurso en via gubernativa,
de acuerdo can tiempo 200.000 32.000 0 232.000
empleado (Valor hora)
PROPIEDAD INDUSTRIAL E INTELECTUAL
ESPANA, PORTUGAL, ARGENTINA, BRASIL, CHJLE, COLOMBIA, MEXICO, PERU, VENEZUELA
Bogota , Medellin , Cali
I - --
3
Clarke, Modet & CO
COLOMBIA
1.4. Presentaci6n de la solicitud de Patente de Invenci6n en Colombia:
Por favor tengan en cuenta que las patentes son territoriales asl que es necesario
presentar la solicitud de patente en el pais donde se desea protecci6n.
Asi las cosas, remitimos los costos para optar por la opci6n de presentar la solicitud en
Colombia via Convenio de Paris, con 10 cual tendriamos 12 meses para presentar la
solicitud en los otros 168 palses que son miembros de este Tratado y resulten de su
interes. 0 la opci6n de presentar una solicitud internacional mediante el Tratado de
Cooperaci6n de Patentes (PCT), la cual debera ser conf irmada antes de 30 meses en
cada uno de los paises elegidos.
1.4.1. Costos obligatorios:
CONCEPTO HONORARIOS IVA (16%)
TASAS
OFICIALES
TOTAL
Presentaci6n de la solicitud
1.120.000 179.200 138.500 1.437.700
Solicitud de examen de
Patentabilidad *
88.000 14.080 117.500 219.580
*Este gasto adicional y posterior es un costo que tiene el tremite necesariamente y es
requisito obligatorio para continuar con el estudio de fonda de la solicitud.
1.4.2. Posibles costos adicionales:
AI igual que con una solicitud de modelo de utilidad, podrian haber posibles pagos extras
por requerimientos oficiales de la Oficina de Patentes, los cuales se les informaria en el
momento de causarse, donde estos costos son los mismos que se encuentran en el punto
1.3.2 de la presente cotizaci6n y que corresponden a los costos adicionales para un
modele de utilidad.
2. COMENTARIO SOBRE NUESTRA TARIFAS:
Los costos anteriores no tienen incluidos los gastos adicionales tales como correo , copias ,
gastos notariales, etc., y se cobraran sequn se causen.
EI valor de nuestros honorarios corresponden a la preparaci6n y presentaci6n de la
solicitud entendiendose que en el ejercicio del poder realizaremos todas las gestiones
necesarias para la obtenci6n del registro, sin que nos comprometamos a obtenerlo ya que
existen multiples razones que podrian impedirlo.
PROPIEDAD INDUSTRIAL E INTELECTUAL
ESPANA, PORTUGAL, ARGENTINA. BRASIL, CI-llLE, COLOMBIA, MEXICO, PERU, VENEZUELA
Bogota, Medellin, Cali
4
Clarke, Modet & CO
r:
r:
r
r:
r:
COLOMBIA
3. FORMA DE PAGO:
Por politicas de nuestra cornparila agradecemos adjuntar a su carta orden la consignaci6n
por el valor correspondiente al servicio solicitado.
Agradecemos su pago a traves de consignaci6n en las cuentas que relacionamos a
continuaci6n, 0 entrega personal.
BANCOLOMBIA
Cuenta Corriente 167-5633954-1
Titular CLARKE MODET & Co COLOMBIA
NIT 830.008.643-3
BANCO SUDAMERIS.
Cuenta Corriente No 11508298
Titular CLARKE MODET & Co COLOMBIA
NIT 830.008.643-3
4. VALIDEZ DE LA PROPUESTA
La presente propuesta tendra validez de (1) mes desde la fecha de envio de la misma al
cliente, plazo durante el cual se garantiza el mantenimiento de las tarifas aplicables al
calculo de honorarios.
5. CODIGO DE CONFIDENCIALIDAD:
La informaci6n que recibimos de nuestros c1ientes potenciales en las visitas que
realizamos es de caracter estrictamente confidencial. Somos conscientes que la
informaci6n es un activo de gran valor y que cualquier divulgaci6n impropia puede
perjudicar los planes de negocios de nuestro c1iente potencial. La Direcci6n General
de Clarke, Modet & Co Colombia Limitada garantiza el caracter confidencial de la
informaci6n que recibamos de parte la Universidad Distrital Francisco Jose de Caldas.
la cual formalizaremos mediante la firma de la carta anexa firmada por la
representante legal de Clarke, Modet & Co Colombia Ltda. y por la receptora de la
informaci6n quien presenta esta propuesta.
Igualmente toda informaci6n contenida en este documento es considerada privilegiada
y confidencial, puesto que este material incluye descripciones metodol6gicas
propiedad exclusiva de Clarke, Modet & Co. La posici6n de Clarke, Modet & Co sobre
el uso de la informaci6n contenida en este documento, es que la misma s610 debe ser
utilizada con el objetivo de validar su contenido para su anal isis y aprobaci6n. Ninguna
parte de este documento podra ser reproducida total 0 parcialmente por cualquier
PROPIEDAD INDUSTRIAL E INTELECTUAL
ESPANA, PORTUGAL, ARGENTINA, BRASIL, CI-llLE, COLOMBIA, MEXICO, PERU, VENEZUELA
Bogota, Medellin, Cali
r>
5
Clarke. Modet & CO
COLOMBIA
medio sin la previa autorizacion de Clarke, Modet & Co.
• Se considera violacion a este codiqo de confidencialidad, mostrar esta presentacion a
la competencia de Clarke, Modet Co.
La informacion recibida de nuestros clientes para la reallzacion de esta propuesta se
mantiene bajo instrucclon de no reproduccion y su uso esta autorizado solo a los
,..... involucrados en la preparacion de la presente propuesta.
Cualquier inquietud, no dude en contactarnos.
Reciban un cordial saludo,
Claudia Caro Andres Dirnian P.
Directora de Consultoria Consultor de Patentes
ccaro@clarkemodet.com.co adimian@c1arkemodet.com.co
PROPIEDAD INDUSTRIAL E INTELECTUAL
ESPANA, PORTUGAL, ARGENTINA, BRASIL, CHILE, COLOMBIA. MEXICO, PERU, VENEZUELA
Bogota , Medellin, Cali
6
Bogota D .C. Marzo 3 de 2011
Doctor
JOSE NELSON PEREZ CASTILLO
Director Centro de Investigaciones y Desarrollo Cientifico
Universidad Distrital Francisco Jose de Caldas
Ciudad
Ref.: Solicitud de Avance del Rubro de Publicaciones y Patentes
Respetado Ingeniero,
Par medio de la presente muy respetuosamente quiero solicitar ante usted un avance par
2.000.000 del rubro de "Publicaciones y Patentes" con el objetivo de iniciar el proceso de
solicitud de patente, el cual plantea como primera tarea la realizaci6n de W1 estudio de
patentabilidad realizado par la empresa Clarke, Modet & Co, como segunda tarea una
asesoria en la elaboraci6n de la patente y par ultimo la solicitud de la misma, para el
proyecto de investigaci6n "Disefio y construcci6n de un prototipo de medici6n de los
indicadores de calidad del servicio de energia electrica (DES y FES) para usuario
residencial", del cual soy director y que se encuentra reglamentado en el contrato de
investigacion No . 20 de 2010.
Cordialmente, ('
!) n~ '~
l CDCJJ I-I r(rnG1!c'Cz p .
ING. CESAR AUG STO HERN"'~EZSUAREZ MSc.
Grupo de Investigacion ARMOS .
Facultad Tecnol6gica
Universidad Distrital Francisco Jose de Caldas
cahernandezs@udistritaI.edu:co
--------
-- --
.,
Bogota D.C. Marzo 15 de 20 II
Honorables miembros
COMITE DE INVESTIGACIONES
Centro de Investigaciones y Desarrollo Cientifico
Universidad Distrital Francisco Jose de Caldas
Cordial saludo,
Por medio de la presente muy respetuosamente quiero presentar ante el cornite en
documento adjunto a esta carta la cotizacion realizada el afio pasado (2010) por la empresa
Clarke , Model & Co, para la realizaci6n de todos los procesos involucrados .en fa solicitud
de patente ante la Superintendencia de Industria y Comercio, cuyos costos resumo en la
tabla 1.
Tabla I. Costos asociados a la patente.
Concepto Costo (IVA incluido)
Busqueda internacional 649.600
"_ ¥-
Realizaci6n de Documento 3.016.000
-- f--
Presentaci6nde la Solicitud 870.050
Examen de Patentabilidad 179.580
Total 4.715.230
Por tal raz6n solicito ante el comite de investigaciones del Centro de Investigaci6n y
Desarrollo Cientffico de la Universidad Distrital Francisco Jose de Caldas, un avance por el
valor total del rubro de Publicaciones y Patente, que luego del reajuste de los rubros
corresponde a cinco millones de pesos (5.000.000), los cuales me permitiran cubrir los
costos asociados con mi solicitud de patente segun la tabla 1, para el proyecto de
investigaci6n institucionalizado "Disefio y construcci6n de un prototipo de medici6n de los
indicadores de calidad del servicio de energia electrica (DES y FES) para usuario
residencial", del cual soy director y que se encuentra reglamentado en el contrato de
investigaci6n No. 20 de 20 IO.
Quiero resaltar que hace un poco mas de una semana solicite ante el comite de
investigaciones un avance de dos millones (2.000.000) del rubro de Publicaciones y
Parente, por 10 que aprovecho la presente comunicaci6n para solicitar que dicho avance se
cancele para generar uno solo por el valor total de cinco millones (5.000.000) en lugar de
dos avances de dos y tres millones respectivamente, 10 anterior con el objetivo de no crear
traumas en la Jegalizaci6n de dicho avance.
Quedo pendiente de la respuesta oficial a mi anterior solicitud, a 1a presente solicitud y a
los tiempos a los que el CIDC se compromete para realizar mi solicitud de patente.
Cordialmente,
! j I I ... 11 1 ~
lei';\' ( ~ , CTmn ••. . '\ING~CESAR lI.UGUSTO H f%..tJEZ SUAREZ MSc.
Grupo de Investigaci6n ARMOS i
Facultad Tecno16gica
Universidad Distrital Francisco Jose de Caldas
cahernandezs@udistrital.edu.co
PD: adjunto cotizacion realizada por Clarke, Model & Co,
Bogota D.C. Marzo 18 de 20 I J
GNIVERStOAD Pt4T~TAC- '
~~~C I SCO JOse DE CALDAS
CO A R .P.S~ON't).NCII\ I{F.ClflIDA
Honorables miernbros 1) ,,' I ~l hn RQ>t.'·'Ur~'.1 Fl d ..,o s
( . ')COMITE DE INVESTIGACIONES
Centro de Investigaciones y Desarrollo Cientifico L18 ~A~, 2°1' Universidad Distrital Francisco Jose de CaJdas I
HORA. "') I
" 0 ~ t;u us . _ )
. " "" 1< rv:\'"*~----:~~
Ref.: Modificacion Rubros Proyecto "Diseiio y construccion de un prototlpo"iIe-~1 ( ...
los indicadores de calidad del servicio de energia electrica (DES y FES) para usuario
residencial"
Cordial saludo,
Con el objetivo lIevar a feliz termino tad as los procedimientos necesarios para la solicitud de
patente de modelo de util idad ante la Superintendencia de Industria y Comercio, del prototipo
desarrollado como re sultado esperado dentro del proyecto "Disefio y construcci6n de un prototipo
de rnedicion de los indicadores de calidad del servicio de energia electrica (DES y FES) para
usuario residencial", solicito al comite del Centro de Investigaciones y Desarrollo Cientifico, la
rnodificacion de los s iguientes rubros:
» Que el excedente del rubro de "Viajes" de dos millones cuatroc ientos tre ce mil quinientos
sesenta pesos (2.413.560) pase compJetamente al rubro de " Publicac iones y Patente".
» Que el excedente del rubro de "Materiales" de tres cientos mil pesos (300.000) pase
completamente al rubro de "P ubl icaciones y Patente".
» Que el excedente del rubro de "Equipos" de ochenta y un mil guinientos quince pesos
(81.515) pase completamente aJ rubro de " Publicac iones y Patente".
).> Que un valor de dos cientos cuatro mil novecientos veinticinco pesos del rubro de
"Auxiliares de lnvestigacion" pasen aJ rubro de " Publicac iones y Patente".
Luego de la anterior modificaci6n los rubros quedarian de la siguiente forma :
> Rubro para Publicac iones y Patente: cinco millones de pesos (5.000.000).
» Rubro de Auxiliares de Investigaci6n: seis cientos setenta y c inco mil setenta y cinco peso s
(675.075).
y Rubro de Viajes: cero pesos (0) .
~ Rubro de Materiales : cero pesos (0) .
'" Rubro de Eguipos: cera pesos (0).
AtentarJte, 01\ (
CfS\t .. l ~i Cr nO,110 ( u:
ING. C AR i\UGpST0 HERNANDlfz UAREZ MSC.
Investigador Principal ;
Proyecto: "Disefio y construcci6n de un ,prototipo de medici6n de los indicadores de calidad del
servicio de energia electrica (DES y FESY para usuario residencial"
Grupo de Investigaci6n ARMOS - caherjJandezs@udistrital.edu .co
Docente Facultad Tecnol6gica, Universidad Distrital Francisco Jose de Caldas.
FORMATO PARA LA REALIZACION DE BUSQUEDAS DEL ESTADO DE LA TECNICA
1. INFORMACION DE LA COMPANIA
Cornpafiia:
Oireccion:
Departamento:
Persona de Contacto:
Telefonos de
Contacto:
Otros Responsables:
Fecha Solicitud:
2. INFORMACION DE LA INVENCION
1. Area tecnologica . Defina de la forma mas precisa posible el area tecnologica a la cual
pertenece la tecnologia objeto de la busqueda.
2. Descripcion de la tecnologia de interes.
a. Describa de forma detailada las caracteristicas del producto 0 del proceso para el que se
desea realizar la busqueda incluyendo condiciones de operacion, etapas del proceso de
produccicn, estructura interna , materiales de construccion, ... etc.:
b. Establezca los problemas tecnicos que resuelve 0 pretende resolver.
Confide ncial Pagina I if') 2009. Clarke. Mode! & Co.
Clarke, Modet & Co
COLOMBIA
FORMATO PARA LA REALIZACION DE BUSQUEDAS DEL ESTADO DE LA TECNICA
c. Las mejoras que busca introducir en el estado actual de la tecnica y los elementos basicos
que incorpora y que se consideren criticos para su funcionalidad
d. Defina como funciona sus invencion y sus ventajas sobre 10 que el inventor conoce que
existe en el estado del arte.
e. Palabras Clave: Liste las palabras por orden de importancia que verdaderamente sean
relativas al desarrollo tecnologico y que ofrezcan vinculacion clara con la tecnologia bajo
estudio. Procure aportar unicarnente aquellas palabras clave que especificamente
designen la tecnologia, y se evitaran las que tengan acepciones 0 significados muy
amplios, tales como "sistema" 0 "mecanismo" 0 "compuesto" 0 " procedimiento" 0
"metodologia" 0 en Ingles "management" 0 "device" 0 "system".
Espariol:
Ingles:
PROPIEDAD INDUSTRIAL E INTELECTUAL
ESPANA, PORTUGAL, ARGENTTNA, BRASIL, CHILE, COLOMBIA, MEXICO, PERU, VENEZUELA
Bogota, Medellin , Cali
~ \
2
Clarke, Modet & CO
COLOMBIA
FORMATO PARA LA REALIZACION DE BUSQUEDAS DEL ESTADO DE LA TECNICA
f. Referencias previas: Agregue todas las referencias relativas a patentes, licencias,
articulos, conferencias, proyectos, ferias, catalogos de productos etc. .. que puedan tener
incidencia en su tecnologia . Especifique n° de patente, autores, n° de publicaciones 0
revistas, direcciones web 0 anexe la informacion que estime oportuna.
~
\
g. Si el objeto de la busqueda es un objeto, equipo 0 aparato por favor anexe los dibujos
correspondientes y senates en ellos las partes mencionadas en el numeral a)
h. Anexe toda la documentacion que considere oportuna que complemente 0 amplie esta
informacion.
PROPIEDAD INDUSTRIAL E INTELECTUAL
ESPANA, PORTUGAL, ARGENTINA, BRASIL, CHILE, COLOMB1A, MEXICO, PERU, VENEZUELA
Bogota, Medellin, Cali
r
3
United States Patent [19]
Jindrick et at
r:
[54] POWER OUTAGE TIMER
[75] Inventors: James A. Jindrick, Racine; James R.
r: Hurley, Brookfield; Clyde Gilker, S.
Milwaukee, all of Wis.
[73] Assignee: McGraw-Edison Company, Rolling
r: Meadows, III .
[21J AppI. No.: 303,599
[22J Filed: Sep. 18, 1981 r:
[51] Int. Cl.3 G04F 10/00
r: [52] U.S. Cl 364/569; 307/200 A;
364/145; 364/184; 364/483; 364/707
(
~
[58J Field of Search 364/483, 492, 493, 569,
364/707, 145, 184; 346/14 MR; 340/825 .26;
368/121, 113; 307/200 A, 200 B, 597, 603
[56] References Cited
U.S. PATENT DOCUMENTS
2,269,603 1/1942 Rockwood 368/121
2,454,191 1111948 MacDonald 368/121
3,790,890 2/1974 Doittau 324/189
3,887,850 6/1975 Sterff 317/141
23
[11] Patent Number: 4,466,074
[45] Date of Patent: Aug. 14, 1984
4,011,927 3/1977 Smith 184/26
4.099,0687/1978 Kobayashi 307/200
4,260,907 4/1981 Winebarger 307/200A
4,293,915 10/1981 Carpenter 364/145
PrimaryExaminer-Errol A. Krass
Assistant Examiner-Clifford L. Tager
Attorney, Agent, or Firm-James A. Gabala; Jon Carl
Gealow; Tom Vigil
[57] ABSTRACf
The power outage timer (36, 136, or 236) forms a part of
an electronic watt-hour meter (10) having a micro
processor (22), a real time value memory and a real time
clock signal input from a voltage supply (23). The
power outage timer (36, 136, or 236) is coupled to the
microprocessor (22) for generating a signal when, after
a power outage, power is restored, such signal being
indicative of the time duration of the power outage and
being input to the microprocessor (22) so that the mi
croprocessor (22) can update the real time value in an
EAROM (32) to reflect the correct real time.
7 Claims, 4 Drawing Figures
MICROPROCESSOR
r:
16
22
14
LOAD LOSS OF
CONTROL
OUTPUTS 34
VOLTAGE I
POWER
OUTAGE ~'O
TIMER
36
u.s. Patent Aug. 14, 1984 4,466,074
23-,....----, ....._-----,'"
FIG. I
12
,----,
16
14
LOAD LOSS OF
CONTROL VOLTAGE/
OUTPUTS 34
POWER ~/OOUTAGE
TIMER
36
FIG. 2 44
+v --.L -+__-,
62 46
64
48
COMPARATOR
50 ~36
70 54
42
°V-----:r------------4...-~
68
FIG. 3 +v __--L.__-.,
146
150
~136
142
FIG. 4
+v----'------__------,
245
248
4,466,074
1 2
processor for generating a signal when, after a power
POWER OUTAGE TIMER outage, power is restored, such signal being indicative
of the time duration of the power outage and being
FIELD OF THE INVENTION input to the microprocessor so that the microprocessor
The present invention relates to a power outage or 5 can update the real time value in the memory to reflect
loss of voltage timer that is particularly useful in a the correct real time.
"smart" solid state watt-hour meter for telling the mi BRIEF DESCRIPTION OF THE DRAWINGS
croprocessor of the length of time there was a power
outage. FIG. lis a .block diagram of a "smart" solid state
10 watt-hour meter including the power outagelloss of
BACKGROUND OF THE INVENTION voltage timer of the present invention.
Heretofore there have been proposed "smart" elec FIG. 2 is a schematic circuit diagram of one embodi
ment of the timer shown in FIG. 1. tronic watt-hour meters which include a microproces
sor, a real time clock signal source and nonvolatile FIG. 3 is a schematic circuit diagram of another em
memories for storing real time values. Such a meter can 15 bodiment of the timer shown in FIG. 1.
then be used for load control to economically use elec FIG. 4 is a schematic circuit diagram of still another
embodiment of the timer shown in FIG. 1. tric power. In this respect, loads such as refrigerators
and water heaters can be turned off during high demand DESCRIPTION OF THE PREFERRED
periods when the cost of KWH's is high, e.g., daytime, ' EMBODIMENTS
and turned on during low demand periods when the 20'
cost of KWH's is low, e.g., nighttime.
Some examples ofsuch watt-hour meter are disclosed
in the following U.S. patents :
________-------------- 25
U.S. Pat. No.: Patentee:
4,075,699 Schne ider et al,
4,240,030 Bateman et al.
4,241,237 Paraskevabos et al,
4,253,151 Bouve
35
U,S. Pat. No.: Patentee:
3,790,890 DoitJau et a!.
4,011.927 Smith
50
Also, a power supply interruption detection circuit is
disclosed in U.S. Pat. No. 4,099,068.
As will be described in greater detail hereinafter, the
power outage (loss of voltage) timer of the present
invention differs from previously proposed timing cir- 55
cuits by providing a timer which produces a timing
signal, when, after a power outage, the power is re
stored and a capacitor in the timer is charged back up to
its normal voltage. Such timing signal can be used by a
microprocessor for updating and correcting the real 60
time value stored in a non-volatile memory.
SUMMARY OF THE INVENTION
According to the invention, there is provided in an
electronic watt-hour meter having a microprocessor, a 65
real time value memory and a real time clock signal
input. An improvement comprising a power outage/
loss of voltage timing means coupled to the micro
I
5
10
15
20
25
30
35
40
45
50
55
60
65
4,466,074
3 4
and when it reaches its normal value, a timing signal is
sent to the microprocessor 22. The elapsed time be-
tween a first point in time when the restoration of the
power/voltage occurs and a second point in time when
the timing signal occurs is related to and indicative of
the time period of the power outage, provided, of
course, that the capacitor 40 had not discharged to zero.
Preferably, the RC time constant is such that the timer
36 will time a power outage for up to six hours.
Of course, the microprocessor 22 will determine if
the time period sensed is equal to the maximum time
period for charging the capacitor 40 and if so, will abort
the load control function and raise an alarm flag indicat-
ing that real time value stored in the EAROM 32 needs
to be updated and corrected.
For short power outages, e.g., less than six hours, the
microprocessor will convert the time period to a real
time value and add it to the real time value in the
EAROM 24 memory so the load control function can
be continued on real time.
Referring now to FIG. 2, the timer circuit 36 has a
reference voltage input conductor or bus 44 which
supplies reference voltage through a diode 46 and a
charging resistor 48 to the capacitor 40.
A junction 50 between resistor 48 and capacitor 40 is
coupled to one input 52 of a comparator 54.
Another input 56 is coupled to a junction 58 in a
voltage divider 60 comprising a series connected diode
62, first resistor 64 and second resistor 66 connected
between the voltage bus 44 and a system common or
ground 68. An output 70 from the comparator 54 is
coupled to the microprocessor 22.
After a power outage when voltage returns to the bus
44, the capacitor 40 starts to charge via the diode 46 and
resistor 48. When the voltage on the capacitor 40 just
exceeds the voltage at junction 58 on the voltage di-
vider 60, the comparator output 70 changes state. The
time period from power up to state change is propor-
tional to the time of the outage and is utilized by the
microprocessor 22 to update and correct the real time
value .
It will be appreciated that the resistor 64 and 66 val-
ues are chosen so that the normal voltage at junction 58
is at or just below the normal voltage on the capacitor
40.
In FIG. 3 is illustrated another embodiment of the
power outage timer of the present invention which
timer is generally identified by reference number 136. In
this timer 136 there is provided a first charging capaci-
tor 140 having a shunt resistor 142 thereacross. A con-
ductor/voltage bus 144 from the microprocessor 22
supplies a reference voltage through a diode 146 for
charging capacitor 140.
The voltage on capacitor 140 at a junction 150 is
supplied to one input 152 of a comparator 154.
Another, second capacitor 156 is series connected
with a resistor 158 between another conductor/voltage
bus 160 and a system common or ground 162.
A junction 164 between resistor 158 and capacitor
156 is connected to another input 166 of comparator 154
and an output 170 of the comparator 154 is connected to
the microprocessor 22.
A shunting transistor 172 is connected across the
capacitor 156, the base 173 of which is connected to the
voltage bus 160 with a base bias resistor 174 connected
between the base 173 and ground 162 such that when
the power is on transistor 172 is off and capacitor 156 is
charged to its normal voltage. The capacitor 140is also
charged to its normal voltage
When there is a power outage, capacitor 140 starts to
decay on its RC characteristic and capacitor 156 is
shorted out as a result of transistor 172 being turned on.
At the same time, a switch 178 in themicroprocessor 22
coupling the supply voltage to the bus 144 is opened .
Now when the voltage returns, the capacitor 140
remains unconnected to the source of power (and con-
tinues to decay on its RC characteristic). Meanwhile,
capacitor 156 is charged via its associated resistor 158,
the transistor 172 being again turned off.
The time it takes the voltage on capacitor 156 to just
exceed the voltage on capacitor 140 is proportional to
the time of the outage and when this occurs, a timing
signal is sent from output 170 of comparator 154 to the
microprocessor. This time signal is used by the micro-
processor 22 to calculate the time period of the outage
and then correct the real time value. Also, the timing
signal causes reclosing of switch 178.
A still further embodiment of the timer of the present
invention is illustrated in FIG. 4 and is generally identi-
fied therein by reference number 236 and is a digital
timer 236. The timer 236 includes a timing capacitor 240
having a shunt resistor 242 connected across same. The
capacitor 240 is charged to a desired voltage level from
a voltage bus 244 through a digital transmission gate 245
and a charging resistor 246. Another digital transmis-
sion gate 247 is connected between resistor 246 and a
system common or ground 248.
A junction 250 between resistor 246 and capacitor
240 is connected to an input 252 of a comparator 254. A
junction 258 in voltage divider 260, between two resis-
tors 262 and 264 thereof, is connected to another input
266 of the comparator 254. The voltage divider 260 is
connected as shown between the bus 244 and ground
248.
An output 270 of comparator 254 is connected to
microprocessor 22. Transmission gate 245 is controlled
by a control line 275 from microprocessor 22 and trans-
mission gate 247 is controlled by a control line 277 from
the microprocessor 22.
While power is being supplied, the voltage on capaci-
tor 240 will go up and down. In this respect gate 245 is
opened to charge capacitor 240 to a voltage above the
voltage at junction 258 at which time an output signal
from comparator 254 tells the microprocessor 22 to
close gate 245 and open gate 247 to discharge the volt-
age on capacitor 240 which then falls below the voltage
at junction 258 at which time a signal from comparator
254 repeats the process.
When power/voltage is lost the gates 245and 247are
closed and capacitor 240 decays through resistor 242.
When voltage returns, the voltage on the capacitor
240 is compared to the voltage at 258 in the voltage
divider 260 by the comparator 254. If the capacitor
voltage exceeds the divider voltage the lower gate 247
is pulsed by the microprocessor 22 draining some
charge off the capacitor 240 and lowering its voltage .
Another comparison is made. This cycle is continued
until the capacitor voltage is just less than the voltage at
junction 258 at which time the comparator 254 output
voltage changes . The microprocessor 22 counts the
number of pulses needed to flip the comparator 254.
The count of number of pulses is proportional to the
time of the power outage. If the capacitor 240 voltage is
less than the divider voltage at junction 258, the micro-
processor 22 must pulse the raise gate 245.
5
10
15
20
25
30
35
40
45
50
55
60
65
4,466,074
5 6
In all three embodiments the decay time of capacitor
40, 140 or 240 is very long compared to the test time to
determine its charge.
From the foregoing description, it is apparent that the
timers 36, 136 and 236 .are totally solid .state and will
provide a reliability comparable with a thirty year de
sign life. Although the timers 36, 136 and 236 do not
have high accuracy, they are suitable for resolving a 15
minute period in power outages up to 6 hours. Also, the
meter reading event can be utilized to reset the meter
time of day clock to the exact time during the monthly
meter reading;
The timers-36, 136 and 236 have a number of advan
tages, some of which have been described above and
others of which are inherent in the invention. Also,
many modifications can be made to the timers 36, 136 '
and 236 of the invention without departing from the
teachings of the invention. Accordingly, the invention
is only to be limited as necessitated by the accompany
ing claims.
We claim:
1. In an electronic 'watt-hour meter operated by a
microprocessor and having connected thereto a real
time value electrically alterable read only memory and
a real time clock signal input, the improvement com
prising:
a power outagelloss of voltage timing means, cou
pled to the microprocessor, for generating a signal
after power is restored to said microprocessor fol
lowing a power outage, such signal being indica
tive of the time duration of the power outage when
the watt-hour meter was inoperative and being
input to the microprocessor so that the micro
processor updates the real time value in the electri
cally alterable read only memory to reflect the
correct real time in the memory.
2. In the electronic watt-hour meter according to
claim 1, wherein said timing means comprises a resistor
and capacitor network coupled to a voltage compara
tor.
3. In the electronic watt-hour meter according to
claim 2, wherein said resistor and capacitor network
includes:
a voltage supply derived from the voltage supplied to
said watt-hour meter, said voltage supply provid
ing a first and a second reference voltage,
a capacitor which is charged by said first reference
voltage,
a shunt resistor which is connected across said capac
itor, and
wherein said voltage comparator has a first input
connected to said capacitor, a second input con
nected to said second reference voltage, and an
output connected to the input of said microproces
sor, said second reference voltage normally being
at or just below the normal voltage on said capaci
tor and
wherein said microprocessor:
(a) senses a first point in time when power is re
stored after a power outage;
(b) senses a second point in time when the output of
said comparator changes indicating said capaci
tor has recharged, after having discharged
through said shunt resistor during a power out
age, back to its normal value;
(c) calculates the real time represented by the sum
of the elapsed time between said first point and
second point in time and the real time value in
the electrically alterable read only memory; and
(d) updates the real time value in the electrically
alterable read only memory to approximate the
correct real time value.
4. In the electric watt-hour meter according to claim
1, wherein said timing means includes: a voltage bus, a
system common conductor, a series connected charging
resistor and a timing capacitor connected across said
bus and common conductor, a shunt resistor connected
across said capacitor, a comparator having one input
connected to the junction between said resistor and
capacitor and having its output connected to an input of
the microprocessor, and a voltage .divider connected
between said bus and said common conductor with the
output of said divider being connected to the other
input of said comparator.
5. In the electric watt-hour meter according to claim
4, further including: a first diode connected between
said voltage bus and said voltage divider; and a second
diode connected between said voltage bus and said
series connected charging resistor and timing capacitor.
6. In the electric watt-hour meter according to claim
I, wherein said timing means includes:
a comparator having first and second inputs and an
output which is coupled to an input of the micro
processor,
a first voltage bus supplied from the microprocessor,
said microprocessor having an internal switch for
controlling the energization of said first voltage bus
dependent upon the output state of said compara
tor,
a first capacitor circuit comprising a diode and a first
timing capacitor connectedbetween said first volt
age bus and a system common,
a shunt resistor connected across said first timing
capacitor, the junction between said diode and first
timing capacitor being coupled to said first com
parator input,
a second voltage bus,
a second capacitor circuit comprising a series con
nected charging resistor and second timing capaci
tor connected between said second voltage bus and
said system common, the junction between said
charging resistor and said second timing capacitor
being connected to said second comparator input,
and
a shorting transistor circuit connected across said
second timing capacitor and controlled by the volt
age on said second voltage bus, said shorting tran
sistor being turned off when there is voltage on said
second voltage bus and being turned on when there
is a loss of volage to short the second timing capac
itor to prepare some for charging when voltage is
restored, the charging ofsaid second timing capaci
tor being compared with the decayed voltage level
on said first timing capacitor such that the time
period between the time of voltage restoration and
the time when the voltage on said second timing
capacitor equals the voltage on said first timing
capacitor is indicative of the time period of the loss
of voltage.
7. In the electric watt-hour meter according to claim
1, wherein said timing means includes:
a voltage bus and a system common,
a comparator having first and second inputs and an
output coupled to the microprocessor,
5
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65
4,466,074
7 8
a voltage divider including first and second series
connected resistors connected between said volt
age bus and system common, the junction between
said resistors being connected to said first com para
tor input,
a first transmission gate connected to said voltage bus
and .being controlled by a pulsed control line from
the microprocessor,
a second transmission gate connected to said system
common and being controlled by a pulsed control
line from the microprocessor,
a conductor bus connected between said first and
second gates and supplied with the potential (+ V)
on said voltage bus through said first gate or with
the potential (oV) on said system common through
said second gate,
a capacitor circuit including a series connected
charging resistor and a timing capacitor connected
between said conductor bus and said system com
mon, and
a shunt resistor connected across said timing capaci
tor, the junction between said charging resistor and
said timing capacitor being coupled to said second
comparator input, the microprocessor being pro
grammed to maintain said comparator output es
sentially zero when power is supplied to said watt
hour meter and to count the number of pulses sup
plied to said first gate between the time when
power has been restored after a loss of power to
said voltage bus and the time when the voltage on
said timing capacitor equals the voltage at said first
comparator input, said count of pulses being indica
tive of the time period of the loss of voltage.
• • • * •
1111111111111111111111111111111111111111111111111111111111111111111I1111111
US006137868A
United States Patent [19]
Leach
[54] OUTAGE NOTIFICATION DEVICE
[76] Inventor: Mark A. Leach, 3631 W. Point Cir.,
Lizella, Ga. 31052
[21] Appl , No.: 09/105,287
[22] Filed : Jun. 25, 1998
Related U.S. Application Data
[60] Provisional application No. 60/052 ,06 1, Jul. 9, 1997.
(51] Int. CI. 7 H04M 11/00
[52] U.S. CI. 379/106.01; 379/39
[58] Field of Search 379/37,39-40,
379/47,49-50, 106.D1, 106.03; 340/531,
533, 539, 870.02, 870.03
[561 References Cited
U.S. PATENT DOCUMENTS
5,010,568 4/1991 Merriam et 01. .
5,031 ,209 7/1991 Thornborough el aI. 379/106 .03
5,408,523 4/1995 McEachern et al. .
8
2
120 Volts
Analog
Input
Power
Transformation
-
rr>
I 3
r
r-r-:,
,.....,
r
r:
»<
,.-..
r:
[11] Patent Number: 6,137,868
[45] Date of Patent: Oct. 24, 2000
5,784 ,441 7/1998 Davis et aI. 379/106.01
Primary Examiner---Curtis A. Kuntz
Assistant Examiner-George Eng
Attorney, Agent, or Firm--Brian D. Bellamy
[57] ABSTRACT
An embodiment of a electric power outage notifi cation
device is disclosed that combines several components
including voltage transformation, a comparator circuit, a
microprocessor and a data/fax modem chip. The invention
further incorporates support components that aid in its
overall functionality including a read-only memory, random
access memory and a real-time clock. The unit is fully
programmable using these components and can be pro
grammed by software means to send an outage report to a
selected remote computer modem, facs imile machine or
alphanumeric pager. This outage report is sent to a pro
grammed phone number after a power outage of a prede
termined duration of time. The unit also reverses its role by
providing notification of restored power.
6 Claims, 4 Drawing Sheets
14
18
22
Real -Time
Clock
Micro
Processo
12 20
8-Pin
Data
Connecto
Data/Fax
Modem
Communications
Line
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L
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Transformationl--
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AC to DC
Rectificati°1--icomparatoJt-
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Micro 2
Processor 1
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1
20
Data/Fax
8-Pin
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Connecto
o
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Facsirmlel I Pager
Communications
Line
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U.S. Patent Oct. 24, 2000 Sheet 2 of 4 6,137,868
FIG.2
Start
36
Comparator Circuit
Signal Received
38
Access Information
in RAM
40
Time the
Comparator Signal
42
) ) )) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) )
.~FIG.3
54 0056 58 •
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~ =f""!'.Outage Notif ication I I Outage Not ification I i I Outage Notification
Device Device Device
o
60 ~52 :""
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8
FIG.4
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, Device ...o
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/6
Three-phase Outage Notification
Serv ice Dev ice
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Outage Notification ~ ~
-...JDevice '" ce
0'\
ee
u.s. Patent Oct. 24, 2000 Sheet 4 of 4 6,137,868
FIG. 5
r-- POWER OurAGE REPORT
r- POWER DOWN UP
ID NUMBER DESCRI PT I ON DURATION DATE TIME EVENT
NUMBER
0000 1 0 Sub#3 Ci r#2 Phs#1 353-08 -678 0 0: 0 0 :01 07 /0 1 / 97 10 :30 :57 0-
r- 07/ 01/n 10 :30 :58 1
,..... 00 0 0 1 0 Sub #3 Ci r # 2 Ph s #l 3 5 3 - 0 8- 67 8- 0 0 :00 :26 07 /01 / 9 7 11 : 20: 15 2
07 /0 1 / 9 7 11:20 :41 4
r--
5000010 Sub#3 Ci r # 2 Phe#1 3 53 -0 8 - 67 8 0 0 :0 0 :02 07/ 01/97 11 : 20 :45
07/01/97 11 :20 :47 6
00 00 10 Sub#3 Cir#2 Ph s#l 353 -0d - 6 7 8 0 0: 00:02 07/ 01/ 97 1 1 : 2 0 :4 8 7
07 /0 1 /9 7 1 1 :2 0 :50 8
0000 10 Sub#3 Ci r # 2 Ph s# l 353 - 08-678 00 : 00 : 4 6 0 7 /01 /97 11 :20 :51 9- 07/01/97 11:21 :3 7 1 0
000 020 S ub#8 Cir# 2 Ph .,#6 143 -09 - 165- 0 0 : 00 : 0 2 07/ 01/n 11:24: 39 11
07 / 0 1 / n 11 :24:41 1 2
000 02 0 Sub #8 Ci r#2 Ph.,# 6 143 -09 - 16 5- 0 0 : 00 : 0 1 07/01/97 1 1:24:42 1 3
07 /01/97 1 1:24 :43 14
0 00 020 Sub#8 Cir#2 Phs# 6 143-09 -165- 0 0 : 00: 01 07 / 01 / 97 11 :24 :44 15
07/ 01/97 11 :2 4 : 45 1 6
000 02 0 Sub#8 Cir# 2 phs #6 1 43- 0 9 -1 6 5- 0 0 :00 : 3 8 07/01/97 1 1 : 2 4 :47 1 7
1 1 : 2 5 : 2 5 1 8
00 0030 l e t Ho use Pas t Smithvi lle Rd . 00:01:00 07/01/97 11 :26 :22 19
0 7/01 /97 11 :27 :22 2 0
0000 3 0 1 s t Ho use Past Smithvill e Rd . 0 0 : 00 : 01 07/01/97 11 : 2 7 : 2 4 21
07/ 01 /97 11 :27 :25 22
00003 0 1 s t Ho uee Pa st Smit hville Rd . 07/01/97 1 1 :27 : 26 23
0000 30 let House Pae t Smithvi lIe Rd . 0 0 : 0 0 : 1 1 07 /0 1 / 9 7 11:27 :34 24
07 / 01/ 97 11 :27 : 45 2 5
0000 40 Plant#l , Cn>ehing Mac h ine - - - 0 0 : 03: 55 07 / 01 / 97 11 : 2 6 :3 6 2 6
11 :3 0 :31 2 7
000 0 50 00:00:20 07/01/ 97 11 :39 :22 2 8
07/01/97 1 1 :39 : 42 30
0 00050 06 :52 : 14 07 / 01/97 1 1 : 3 9 :4 9 3 1
07/01/97 18 :32: 03 33
0 0 0 05 0 00 :00 :01 07/01/97 1 8 : 32:07 34
07/ 01 /97 18 :32 :08 35
000 050 00:00 :01 07/02/97 12 :48 : 3 2 36
07/02 /97 1 2 : 4 8 :3 3 37
0000 5 0 00:0 0 : 0 1 0 7 / 0 2 / 97 15 : 17 :58 38
07/ 02/97 15 :17 :59 39 .......
6,137,868
1
OUTAGE NOTIFICATION DEVICE
This application claims the benefit of U.S. Provisional
application Ser. No. 60/052,061, filed Jul. 9, 1997 .
FIELD OF THE INVENTION
The present invention relates to an electric power outage
notification dev ice, particularly adapted to monitor and
report loss of electric power via standard telephone lines to
a selectively programmable choice of computer, facsimile,
or pager.
BACKGROUND OF THE INVENTION
Presently, most utility companies have to rely on their
customers to physically call in and report power outages and
their location. The process of collecting these calls and
gathering enough information to restore an outage takes a
great amount of time .
Various products are available that help automate the
process of detecting power outages and reporting them for
utilities. Typically, these known devices are permanently
programmed and use telephone lines for communicating
their identity back to the utility. These known devices
generate DTMF tones and send them to a converter box that
converts the tones to a serial format. In most cases, this
converter box is attached to a personal computer at the
electric utility. This known system works adequ ately for
collecting data, but requires the purchase and connection of
a separate converter box to a serial port of a personal
computer that is dedicated to use for outage notification. In
the known devices, the personal computer becomes the
catalyst for generating the desired output of a facsimile or
paging signal. Thus, utilities are required to invest into a
personal computer that can only be used for collecting
outage data, and both the computer and its serial port
become unavailable for other uses .
A remote meter reading system that utilizes telephone line
and modems to obtain electric power data is described in
U.S. Pat. No . 5,010,568 to Merriam et al. entitled " Remote
Meter Reading Method and Apparatus." The Merriam meter
reading system is typical of prior art electric power infor
mation systems that collect data and outputs that data in
DTMF tones. These type of prior art devices, including the
Merriam system, send the DTMF tones to a converter box
that translates the data into ASCII code and then sends the
inform ation to a dedicated utility company computer.
A utility reporting system that utilizes facsimile to output
a report to the utility without an intervening computer
system is described in U.S. Pat. No . 5,408,523 to McEach
ern entitled "Electronic Remote Data Recorder with Fac
simile Output for Utility AC Power Systems." The Mcliach
ern system measures AC power parameters and
communicates them telephonically to a facsimile device
only. The McEachern system does not disclose any method
of communicating a power report to a selectively program
mable choice of the utility computer, a facsimile device, or
a pager device.
Like most businesses, utilities face human resource limi
tations and high equipment costs. Furthermore, as power
companies face deregulation and increased competition,
customer service is even more important to retain business.
A primary concern of customers is that they do not lose
power for long periods of time . One of the primary reasons
for time delay in restoring power is the lack of knowledge
of the occurrence and location of the outage by the utility.
Also, power outages are subject to occur at any time day or
10
15
20
25
30
35
40
45
50
55
60
65
2
night. Utility personnel may be available at varying
locations, and, therefore, a method and apparatus for trans
mitting power outage notification reports to a computer,
facsimile machine, or pager according to variable param
eters is needed and would be very desirable .
SUMMARY OF HIE INVENTION
One object of the present invention is to provide an
inexpensive and effective power outage notification device
by eliminating the need for a dedicated computer and DTMF
tone converter box .
Another object of the present invention is to provide a
device for reporting electric power information to utilities by
delivery to a selectively programmable choice of computer,
fascimile machine or pager.
Another object of the present invention is to provide a
device that can be programmed remotely via telephone line
to change operational information such as telephone
numbers, locations, and notification means.
The present invention provides a device for transmitting
electric power information to a utility by incorporating its
own programmable data /fax modem chip in combination
with a microprocessor. This data /fax modem chip and
microprocessor, combined with volatile random access
memory, allow the invention to be reprogrammed at will and
used as a stand-alone device. The device stores the necessary
information relating to its physical location and sends this
information in ASCII format across telephone or cable lines
after detecting an outage condition. Therefore, no converter
box is necessary to interpret DTMF tones. Further, the
device can be programmed, at will, to send its electric power
information to a choice of computer, facsimile machine or
pager. If a facsimile machine or pager is selected to receive
the information, no computer is needed for the device to
operate and send or receive information.
Because the dat a/fax modem chip used in the present
invention allows the invention to be a stand-alone device
with the ability to dial-out to a computer, facsimile machine
or pager, personnel do not have to stand by a computer to
select the message destination. The data/fax modem chip
allows for bi-directional communications between the
device and a computer located at the utility office. Using the
bi-directional communication capabilities of the device, the
device can be reprogrammed by changing a previously
programmed parameter ill the software program controlling
the device at the computer.
These and further objects of the invention will be apparent
from the following description of preferred embodiments
thereof.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is further described in connection with the
accompanying drawings.
FIG. 1 shows a block diagram of an embodiment of the
invention.
FIG.2 shows a flow diagram of the algorithm executed by
the program controlling the microprocessor of the invention.
FIG . 3 shows a block diagram of an application of the
invention for spacially close loca tions .
FIG . 4 shows a block diagram of an application of the
invention for three-phase electrical service.
FIG . 5 shows the general format of an outage notification
report created by the invention and delivered to a fascimile
machine.
6,137,868
3 4
DETAILED DESCRIPTION
A preferred embodiment of a remote power outage noti
fication device of the present invention is shown in the block
diagram of FIG. 1. The present device samples the voltage
available on a standard 120 volt receptacle. Beginning at the
lefthand side of FIG. I, a voltage is delivered to a power
transformer 2 from a standard electrical terminal or the like,
and the power transformer steps down the 120 volts at the
terminal to 12 volts. An AC to DC voltage rectifier 4 rectifies
the voltage from AC to DC. The rectified and reduced
voltage provides electric power to a power supply 6 in which
various well-known electronic components are grouped in a
common arrangement within the power supply to providevoltage and current to the various components of the inven
tion according to each components pre-determined voltage
and current requirements. In the event of a loss of power to
the power supply, a battery backup 8, preferably consisting
of a rechargeable nicad battery, provides electric power to
the power supply in leiu of the rectified and reduced vultage
described above.
TIle reduced voltage is further used by the invention as a
reference voltage. A comparator circuit 10 is coupled to the
AC 10 DC voltage rectifier and receives the reference
voltage. The comparator circuit constantly samples the ref
erence voltage and compares it against a predetermined set
voltage mark. If the reference voltage falls below the set
voltage mark, then the device flags the reference voltage as
being an outage and initiates a signal to a microprocessor 12,
which could result in an outage notificat ion report. Once the
reference voltage is flagged, the comparator circuit repeats
the sampling procedure for determining when the power is
in the on condition, rather than an outage. If the reference
voltage rises above a set voltage mark, then the device flags
the reference voltage as being a power on condition and
initiates a signal to the microprocessor.
Random access memory (RAM) chipsets 14 are used to
hold user programmed and reprograrnmable information
such as phone numbers, operat ional settings and location
information. Read only memory (ROM) chipsets 16 are used
to support the microprocessor by storing firmw are code thai
includes routines for controlling the execution of the micro
processor. The microprocessor is further supported by the
real-time clock chip 18 that is used for all of the timing and
calendar functions of the device.
By programming and utilizing the RAM 14, the micro
processor 12 , and a data /fax modem chip 20 in a novel
manner, the present invention is unique in that it may initiate
and send a response message by a choice of several com
munication modes directly to a cboice of computer, fac
simile machine or pager without the use of an intermediary
computer and without the use of DTMF tones . Once the
device has initiated a call instruction, the microprocessor
issues a command to the data/fax modem chip 20 for
processing a call .
The microprocessor is programmed with information pro
vided from the RAM 14 to command the data /fax modem
chip 20 to send a message to a particular phone number and
recipient computer, fascimile machine or pager. The mes
sage is transmitted via a communication line 24 that is a
standard telephone line in the preferred embodiment.
However, the device could also be adapted to communicate
via cable lines, cellular, or other communication means.
If data is to be sent to the computer 30 at the utility, the
data /fax modem chip dials out to a modem operating with
tbe computer. The combination of the RAM and micropro
cessor enables the device to transmit data via the data/fax
modem chip in ASCII formal. Therefore, data sent from the
device to the computer is transmitted in ASCII format when
the invention is practiced in its preferred embodiment. The
computer receives the data, and software operating on the
computer manipulates the data and logs it to a database. If
the facsimile machine is the desired message destination, the
RAM provides programming information to the micropro
cessor which executes an operational routine in conduction
with tbe data/fax modem chip and arr anges the data into an
10 appropriate binary message format recognized by a fas
cimile machine. If the pager is the desired message
destination, tbe data is delivered in an ASCII format. In one
embodiment, an ASCII message including an identification
numher representing the location of the power change and a
15 number signifying the change in power could be sent to a
numeric type pager device.
The variable programming information in the RAM 14 is
received from programming software 32 present on the
computer 30. The user programmed information is cornmu
20 nicated to the RAM whenever the invention contacts the
utility computer with the programming software thereon.
Information from the programming software is transmitted
serially from the computer to the RAM via the same
communication means or telephone line that the data/fax
25 modern 20 communicates with the computer. An 8-pin data
connector 22 is used to connect the data /fax modem chip 20
to the outside communications line. Of the eight pins on the
8-pin connector only four are used by the data /fax modem
chip. TIle rem aining four pins are used by the device to
30 transmit data direclly from the communications line to the
RAM using serial communication. The device may be
pre-programmed to call the utility computer o n a regular
schedule, and the data contained in RAM may be updated
regularly when the device connects to the computer. Using
35 bi-directional communication capability, the software on the
computer communicates updated data back to the RAM on
the device utilizing the serial communication betweeen the
computer and the RAM .
Turning now to FIG . 2, the flow chart illustrates in more
40 detail the algorithm executed by the microprocessor 12. The
algorithm enters a loop at START 34 . Block 36 acquires a
signal sent from the comparator circuit 10 indicating a
power out or power on condition. After the power change
signal is received, block 38 accesses the information stored
45 in the volatile RAM 14, Block 40 times the signal, and block
42 compares the time from block 40 with a programmed
time limit. If the time limit of block 42 is exceeded, block
44 initiates a call-out routine to report the power change. If
the time limit of block 42 is not exceeded before a second
50 signal is acquired, then the algorithm returns to START 34.
Once the call-out routine is initiated, block 46 uses the
information in RAM to determine the selected operational
method for delivering the power outage information . Block
48 organizes the data into the appropriate format according
55 to the selected operational method . Then, block 50 activates
the data /fax modem chip 20 and sends the data to the modem
with instructions.
The present invention is versatile and can be used for
outage notification in residential, commercial, industrial,
60 and three-phase applications. In single-phase applications,
the present outage notification device 52 can be used to
monitor whole homes or specific pieces of equipment. As
shown in FIG. 3, several of the devices could be used to
monitor several locations in close proximity, for example
65 site A 54, site B 56, and site C 58. The devices could be
connected together via a means for communicating serially
60, or the devices could each be individually connected to
6,137,868
5 6
the communications line. In three-phase applications as
sbown in FIG . 4, tbe outage notification device 52 of the
present invention is connected to a three-phase service 62 at
each of it legs 64, 66, and 68 . Three of the devices are
combined and each device is connected to a leg of the
three-phase service so that each phase of the service is
monitored. The three devices can be all connected to a single
communications line. Whereby, three-phase outage notifi
cation is accomplished.
A representative outage notification report sent to a fas
cimile machine and generated thereby is shown in FIG. 5
having several entries from various locations.
While preferred embodiments of the invention have been
sbown and described, those skilled in this art will recognize
that various modifications may be made in tbese embodi
ments without departing from the spirit and scope of the
present invention. Therefore, the scope of the present inven
tion is set forth in the claims tbat follow.
I claim :
1. An electric power outage notification device for noti
fying utilities of the time and location of apower outage that
comprises:
a. a means for receiving an analog voltage input that
provides a power supply and a reference voltage;
b. a means for providing a signal indicating a cbange in
the reference voltage;
c. a microprocessor coupled to the power supply means
and coupled to the outage signal generating means ;
d. a volatile random access memory coupled to the
microprocessor for storing user programmable data and
instructions used by the microprocessor;
e . a read only memory coupled to the microprocessor for
providing the microprocessor preprogrammed instruc
tions;
f. a real-time clock coupled to tbe microprocessor for
providing the microprocessor current time and date
information;
g. a programmable data /fax modem chip coupled to the
microprocessor for transferring data between the data/
fax modem chip and tbe microprocessor and commu
nicating an outage notification report to an external
communications medium that delivers the report to a
user selected choice of a remote computer, a facsimile
device, or a pager;
h. a means for connecting the programmable data/fax
modem chip and the volatile random access memory to
the external communications medium sucb that data
can be transferred to or from either the data/fax modem
chip or the volatile random access memory;
1. a programming software means for sending user pro
grammed data and instructions to the volatile random
access memory;
whereby said device monitors electric power supply.
2. An electric power outage notification device for noti
fying utilities of the time and location of a power outage that
comprises:
a. a power transformer coupled to a 120 volt AC power
receptacle for stepping down a 120 volt power supply
to supply a 12 volt power source and reference voltage;
b. an AC to DC voltage rectifier coupled to the power
transformer for rectifying the 12 volt power source and
reference voltage from AC to DC;
c. a power supply coupled to the AC to DC voltage
rectifier for providing power to the components of the
device;
10
15
20
25
30
35
40
45
50
55
60
65
d. a comparator circuit coupled to the AC to DC voltage
rectifier for comparing the reference voltage provided
by the rectifier to a predetermined set voltage and
providing a signal when the reference voltage falls
below the set voltage;
e. a microprocessor coupled to the power supply and the
comparator circuit for receiving a signal from the
comparator circuit;
f. a volatile random access memory coupled to the micro
processor for storing user programmable data and
instructions used by the microprocessor;
g. a read only memory coupled to the microprocessor for
providing tbe microprocessor preprogrammed instruc
tions;
h. a real-time clock coupled to the microprocessor for
providing the microprocessor current time and date
information;
i. a programmable data /fax modem chip coupled to the
microprocessor for transferring data between the data /
fax modem chip and the microprocessor and commu
nicating data for an outage notification report to a
telephone line that carries the report data to a user
selected choice of a remote computer, a facsimile
device, or a pager;
j . an B-pin data connector coupled to the programmable
data/fax modem chip and the volatile random access
memory for transferring data between the outage noti
fication device and the telephone line;
k. a programming software means for sending user pro
grammed data and instructions to tbe volatile random
access memory via the telephone line coupled to the
8-pin connector.
3. An electric power outage notification device as
described in claim 1 wherein said means for receiving said
analog voltage input includes a power transformer coupled
to a 120 volt AC power receptacle for stepping down a 120
volt power supply to a 12 volt power source and reference
voltage and an AC to DC voltage rectifier for rectifying the
12 volt power source and reference voltage from AC to DC
and said signal generating means includes a comparator
circuit for comparing the reference voltage to a predeter
mined set voltage and providing said signal when the
reference voltage falls below the set voltage.
4 . An electric power outage notification device as
described in claim 1 wherein said means for connecting the
programmable dara /fax modem chip and the volatile random
access memory to the external communications medium
such that data can be transferred to or from either the
data /fax modem chip or the volatile random access memory
includes an B-pin data connector coupled to the program
rnable data /fax modem chip and the volatile random access
memory.
5. An electric power outage notification device as
described in claim 1 in which more than one of said devices
are provided and each device is connected to a location
providing said analog voltage input within close proximity
of at least one other location providing said analog voltage
input, each device being connected to tbe other devices via
a means for communicating serially such that said devices
are connected at a single location to said communication
medium, whereby said device is especially useful for moni
toring electrical power supply on multiple peices of equip
ment within a single facility.
6,137,868
7
6. An electric power outage notification device as
described in claim 1 in which three of said devices are
provided and each is connected to a single leg of a three
phase electrical service such that each leg provides said
analog voltage input to its respective device, all of said
8
devices being connected to a single communication line,
whereby said device is especially useful for monitoring
three-phase power supply.
* * * * *
1111111111111111111111111111111111111111111111111111 11111111111111111111111
USOO6711908B2
(12) United States Patent (10) Patent No.: US 6,711,908 B2
Ferragut, II et at. (45) Date of Patent: Mar. 30, 2004
(54)
(75)
(73)
( .)
(21)
(22)
(65)
(60)
(51)
(52)
(58)
(56)
REFRIGERATOR HAVING POWER OUTAGE
DURATION FEATURE
Inventors: Nelson J. Ferragut, II, Williamsburg,
IA (US); John L. McNamara,
Cor alville, lA (US); Louis Mont uoro ,
Cedar Rapids, IA (US)
Assignee : Maytag Corpor ation , Newt on, IA (US)
Not ice: Subject to any disclaimer, the term of this
patent is extended or adjus ted under 35
U.S .C. 154(b) by 0 days.
Appl. No.: 10/1 95,787
Filed : Jul. 15,2002
Prior Publicat ion Data
us 200310010045 Al Jan. 16, 2003
Related U.S. A pplica tion Dat a
Provisional app lica tio n No. 601305,766, filed
2001.
on Jul. 16,
Int. C I.7 F2SB 1100; GOIK 13/00
U.S. C I. 62/129 ; 62/2 30; 340/652;
368/121
Field of Search 62/129, 230; 368/121,
368/113; 713/340; 340/635, 652, 656, 691.6
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• c ited by examiner
Primary Examiner--Marc Norm an
(74) Attorney, Agent, or Firm--McKee , Voorhees & Sease,
P.L.e.
(57) ABSTRACT
Methods and appar atus for monitoring power outages
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