Patents
Patents for G01R 11 - Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption (8,227)
04/1992
04/30/1992WO1992007276A1 Maximum monitor, especially for rate calculation
04/29/1992CN2103147U Freezer power consumpting counting meter
04/29/1992CN2103146U Neodymium iron boron damping device for watt-hour meter
04/22/1992EP0481104A1 Transducer for electricity meter
04/15/1992CN2101877U Electricity saver for single phase kilowatt-hour meter
04/15/1992CN1060359A Arrangement on watt-hour meter for avoiding fraudulent use
04/15/1992CN1016286B Time-sharing and reading devices for walt-hour meter
04/08/1992CN2101244U Kilowatt-hour meter magnetic bearing without guide pin
04/08/1992CN2101243U Kilowatt-hour meter without no-load loss
04/08/1992CN2101242U Energy saving kilowatt-hour meter
04/08/1992CN1016217B Generator circuit
04/01/1992CN2100629U Avoiding or indicating fraudulent use of electricity terminal box of watt-hour meter
04/01/1992CN2100628U False wiring protective device for watt-hour meters
03/1992
03/31/1992CA1298335C Method of altering the worm wheel depth on a watthour meter
03/25/1992CN2099978U Anti-stealing electricity kilowatt-hour meter
03/25/1992CN2099977U Single-phase kilowatt-hour meter vision-aid dust-proof cover
03/24/1992US5097581 Electrical power meter installing/removing apparatus
03/17/1992US5097383 Porta-temp
03/10/1992CA1296923C Measurement circuit
02/1992
02/26/1992CN2097409U Instrument for looking up watt-hour meter
02/18/1992US5089771 Reading device for a watt-hour meter
02/11/1992US5088004 Electricity metering device with cover
02/11/1992US5087875 Isolated high voltage transformer for electric power meter
02/04/1992US5086292 Tamper detection device for utility meter
01/1992
01/29/1992CN2094749U Rare-earth permanent magnet damper
01/29/1992CN1058274A Magnetic bearing of ferrite electricity meter
01/22/1992CN2094064U Monophase watt-hour meters with voltage-stabilizing function
01/22/1992CN2094063U Safety protection of watt-hour meters
01/15/1992CN1057908A Pulse electricity meter
01/07/1992US5079508 Electric power meter adjustment and indication method and apparatus
01/07/1992CA1293995C Real time solid state register having battery backup
01/01/1992CN2092101U Energy-saving watt-hour meter
01/01/1992CN1057526A Circuit capable of protecting electricity against steal
12/1991
12/25/1991CN2091461U Anti-stealing electricity monitor
12/25/1991CN2091460U Kilowatt-hour meter pulse sensor
12/11/1991CN2090536U Counter-box device for tariffing electricity charge
12/04/1991CN2090064U Self contained measuring device for power transformer
12/04/1991CN2090063U Measuring box with acoustooptic switch for preventing steal electric and operating by children
12/03/1991US5068962 Method of fabricating an energy meter
11/1991
11/21/1991EP0456868A1 Error compensation device for an induction type electricity meter
11/19/1991US5066906 Time of use register for use with a utility meter
11/12/1991US5064326 Tamper proof service bolt
11/06/1991EP0455518A2 Electricity meter tamper monitoring
11/06/1991CN1014640B Automatic electrical load timingly peak-limiting controller
11/06/1991CN1014639B Intelligent monitor and its management system for electrical load
10/1991
10/30/1991CN2087785U Kilowatt-hour counter for electric energy meter
10/23/1991CN2087344U New-type protector against embezzling electricity
10/23/1991CN2087343U Magnetic suspension electric-energy meter
10/16/1991CN2086907U Controller for overuse of civil electric power
10/16/1991CN2086906U Pulsive wattmeter
10/15/1991US5057767 Optical communications light shield for energy meter
10/09/1991CN2086417U Anti-reversing meter device
10/02/1991CN2085967U Multipurpose protector for preventing fraudulent use and leakage of electricity
09/1991
09/25/1991EP0447615A1 Appliance for monitoring housings of apparatus
09/25/1991CN2085524U Electricity limiter
09/25/1991CN2085523U No-load lossless watt-hour meter
09/17/1991US5049810 Watt-hour meter cover with battery hatch reset switch and optical communication port
09/04/1991CN2084198U Protector for avoiding fraudulent using electricity and preventing from getting electric shock
09/04/1991CN2084197U Magnetic thrust bearing for watt-hour meter
09/04/1991CN2084196U Domestic energy saving watt-hour meter
08/1991
08/28/1991CN2083753U Multi-function electricity fraudulent using-proof switch
08/21/1991CN1053958A Method and apparatus for making current coil in electric meter
08/14/1991CN2082866U Kilowatt-hour meter for rationing power supply
08/07/1991CN2082419U Intelligent kilowatt-hour meter
08/07/1991CN2082418U Multifunctional protection device for using electricity
08/07/1991CN2082417U Infrared-reflective photo-electric pulse converter for electric energy meter
07/1991
07/31/1991EP0438616A1 Current-voltage transformer for domestic electronic power meters
07/24/1991CA2034636A1 Current-voltage transformer for electronic house-service meter
07/17/1991CN2081098U Civil electricity meter with automatic breaking device
07/03/1991EP0434803A1 Support of opto-electronic pick-up for energy consumption counter.
06/1991
06/26/1991CN2079757U Low-voltage power measuring box
06/25/1991US5027061 Electromagnetic and thermal shield for electronic energy meter
06/25/1991US5027056 Multifunction register enclosure for energy meter
06/19/1991EP0432386A1 Arrangement to determine the values of electrical variables, that can be derived from at least two electrical input signals of the arrangement
06/19/1991EP0432367A1 Device for calculating the tariff with secure bidirectional interface
06/19/1991CN2079298U Electricity fraudulent use preventing device
06/18/1991US5025206 Test mode actuator and indicator for electronic energy meter
06/18/1991CA1285029C Air gap stabilization in voltage stator
06/18/1991CA1285028C Seasonal reset for electric watthour meter registers
06/16/1991CA2025249A1 Tariff arrangement with secure bidirectional interface
06/15/1991CA2029936A1 Arrangement for ascertaining values of electric quantities which are derivable from measured values of at least two electric input quantities of the arrangement
06/12/1991CN2078882U Energy-economizer of watt-hour meter
06/12/1991CN1052194A Watt-hour meter with function of automatic charge accounting
06/11/1991US5023747 Meter base surge suppresion system
05/1991
05/22/1991CN2077550U Power moniter for guarding against stealing electricity
05/22/1991CN2077549U Panel used for preventing stealing electricity
05/15/1991CN2077130U Outside control separating type time-share watt-hour meter
05/15/1991CN2077129U Multi-functional electricity-using monitor
05/08/1991CN2076678U Double-mutual inductance type single-phase electric meter
04/1991
04/24/1991CN2075784U Anti-electricity steeling multifunctional electric meter box
04/23/1991US5010335 Optical port multiplexer for electric metering equipment
04/23/1991CA1283452C Differential switched-capacitor dual slope watthour meter circuit
04/17/1991CN2075345U Protecting connect wire box for electric meter
04/10/1991EP0421320A2 Electricity meter
04/09/1991CA1282857C Terminal base assembly for meter sockets
04/03/1991EP0420548A2 Energy meter
04/03/1991EP0420545A2 Electronic watthour meter
04/03/1991EP0420544A2 Electromagnetic and thermal shield for electronic energy meter
04/03/1991EP0420537A2 Restrictor for multiple switch external control actuator for electronic energy meter
04/03/1991EP0420536A2 Energy meters
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