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Class Information
Number: 324/74
Name: Electricity: measuring and testing > Testing and calibrating electric meters (e.g., watt-hour meters)
Description: Subject matter for testing and calibrating electric meters.










Sub-classes under this class:

Class Number Class Name Patents
324/75 By stroboscopic means 3


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8692538 Test equipment calibration Apr. 8, 2014
8558531 Method and system for indicating faults in an electricity meter Oct. 15, 2013
8552739 Electronic device and method for correcting time-domain reflectometers Oct. 8, 2013
8508212 Calibration of non-contact current sensors Aug. 13, 2013
8502714 Method for calibrating analog-to-digital converting circuits Aug. 6, 2013
8493054 Calibration of non-contact voltage sensors Jul. 23, 2013
8489346 Parametric multi-cycle averaging in an intelligent electronic device Jul. 16, 2013
8482908 Electronic meter register and method having a bottom formed by sealing material Jul. 9, 2013
8446143 Self-calibration circuit with gyrated output impedance May. 21, 2013
8332175 Oscilloscope probe calibrating system Dec. 11, 2012
8310224 Automatic calibration circuit Nov. 13, 2012
8248059 Electronic transformer measuring device having surface mounting assembly Aug. 21, 2012
8235747 Device and method of installing capacitors on a utility company's power meter Aug. 7, 2012
8081426 Calibration module shield and protection method Dec. 20, 2011
8072348 System for the remote acquisition of the electric energy consumptions and for the remote control of the distributed targets of users, also of domestic type Dec. 6, 2011
8041528 Arrangement for calibrating a vector network analyzer Oct. 18, 2011
7973673 Automated meter reader direct mount endpoint module Jul. 5, 2011
7940199 Method for calibrating analog-to-digital converting circuits May. 10, 2011
7908108 Circuit testing apparatus Mar. 15, 2011
7830134 Power meter with means to eliminate the need to zero and calibrating Nov. 9, 2010
7683605 Test pulses for enabling revenue testable panel meters Mar. 23, 2010
7683603 Automatic disconnect system, transfer system and method Mar. 23, 2010
7667567 High precision voltage measuring passive network Feb. 23, 2010
7623043 Method and system for metering consumption of energy Nov. 24, 2009
RE40889 Power metering module Sep. 1, 2009
7535333 Method for monitoring the contact resistance of a wiper May. 19, 2009
7511468 Harmonics measurement instrument with in-situ calibration Mar. 31, 2009
7508190 Test pulses for enabling revenue testable panel meters Mar. 24, 2009
7466118 Compensation of simple fibre optic Faraday effect sensors Dec. 16, 2008
7412338 Radio frequency device within an energy sensor system Aug. 12, 2008
7398168 Method and system for monitoring power flow through an electric power transmission line Jul. 8, 2008
7342507 Revenue meter with power quality features Mar. 11, 2008
7304467 Circuit for simultaneous testing of electricity meters with interconnected current and voltage circuits Dec. 4, 2007
7271735 System for the remote data acquisition and control of electric energy meters Sep. 18, 2007
7239125 Method and apparatus for electronic meter testing Jul. 3, 2007
7236897 Group metering system for power meters Jun. 26, 2007
7233464 Apparatus for and method of ground fault detection Jun. 19, 2007
7197411 Real-time power harness Mar. 27, 2007
7129688 Method for on-line calibration of low accuracy voltage sensor through communication bus Oct. 31, 2006
7026827 Portable calibration unit for test equipment Apr. 11, 2006
7023680 Transient voltage protection and ground status monitoring apparatus and method Apr. 4, 2006
7005844 Measuring circuit arrangement for electricity meters for direct connection Feb. 28, 2006
7003412 Method and system for verifying voltage in an electrical system Feb. 21, 2006
6954061 Method and apparatus for electronic meter testing Oct. 11, 2005
6927564 Multimeter instrument with touch-sensitive selection device Aug. 9, 2005
6892144 Arrangement for providing sensor calibration information in a modular utility meter May. 10, 2005
6864674 Loss measurement system Mar. 8, 2005
6859742 Redundant precision time keeping for utility meters Feb. 22, 2005
6847200 Portable tester for watt hour meter Jan. 25, 2005
6832339 Methods and apparatus for programming a solid-state meter Dec. 14, 2004

1 2 3 4 5










 
 
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