| Patent | Date |
|---|
Apparatus and method of adaptive electronic overload protection
Grant 9,030,795 - Elms , et al. May 12, 2 | 2015-05-12 |
Apparatus And Method Of Adaptive Electronic Overload Protection
App 20140177118 - ELMS; ROBERT T. ; et al. | 2014-06-26 |
Electrical switching apparatus including a trip coil open circuit test circuit and system including the same
Grant 8,436,739 - Elms , et al. May 7, 2 | 2013-05-07 |
Circuit interrupter and receptacle including improved contact configuration
Grant 8,295,016 - Elms October 23, 2 | 2012-10-23 |
Fail-safe Ground Fault Circuit Interrupter
App 20120212864 - ELMS; ROBERT T. ; et al. | 2012-08-23 |
Operational amplifier circuit and arc fault circuit interrupter including the same
Grant 8,004,802 - Elms August 23, 2 | 2011-08-23 |
Communication interface apparatus for an electrical distribution panel, and system and electrical distribution panel including the same
Grant 8,004,418 - Hetzmannseder , et al. August 23, 2 | 2011-08-23 |
Circuit Interrupter And Receptacle Including Improved Contact Configuration
App 20110075303 - ELMS; ROBERT T. | 2011-03-31 |
Arc fault circuit interrupter and method of detecting and interrupting a resistive series arc of a power circuit
Grant 7,746,605 - Elms , et al. June 29, 2 | 2010-06-29 |
Operational Amplifier Circuit And Arc Fault Circuit Interrupter Including The Same
App 20100123983 - ELMS; ROBERT T. | 2010-05-20 |
Communication Interface Apparatus For An Electrical Distribution Panel, And System And Electrical Distribution Panel Including The Same
App 20100060469 - Hetzmannseder; Engelbert ; et al. | 2010-03-11 |
Electrical Switching Apparatus Including A Trip Coil Open Circuit Test Circuit And System Including The Same
App 20100060468 - ELMS; ROBERT T. ; et al. | 2010-03-11 |
Circuit interrupter including a shunt wire current sensor and a processor having a thermal overload predictive function
Grant 7,675,721 - Elms March 9, 2 | 2010-03-09 |
Circuit Interrupter And Receptacle Including Semiconductor Switching Device Providing Protection From A Glowing Contact
App 20100046126 - Elms; Robert T. | 2010-02-25 |
Arc fault circuit interrupter and method of parallel arc fault detection
Grant 7,633,728 - Parker , et al. December 15, 2 | 2009-12-15 |
Circuit interrupter including nonvolatile memory storing cause-of-trip information
Grant 7,633,736 - Domitrovich , et al. December 15, 2 | 2009-12-15 |
Electrical switching apparatus and receptacle including automatic miswiring protection
Grant 7,518,840 - Elms April 14, 2 | 2009-04-14 |
Circuit Interrupter Including Test Circuit
App 20090040666 - ELMS; ROBERT T. ; et al. | 2009-02-12 |
Arc Fault Circuit Interrupter And Method Of Detecting And Interrupting A Resistive Series Arc Of A Power Circuit
App 20090040665 - ELMS; ROBERT T. ; et al. | 2009-02-12 |
Electrical switching apparatus including a second trip circuit responding to failure of a first trip circuit to provide a repetitive signal
Grant 7,486,492 - Elms February 3, 2 | 2009-02-03 |
Arc Fault Circuit Interrupter And Method Of Parallel Arc Fault Detection
App 20080204955 - PARKER; KEVIN L. ; et al. | 2008-08-28 |
Arc fault circuit interrupter
Grant 7,362,552 - Elms , et al. April 22, 2 | 2008-04-22 |
Arc fault circuit interrupter and method for inhibiting series arc protection based on dimmer phase angle
Grant 7,362,553 - Elms , et al. April 22, 2 | 2008-04-22 |
Circuit interrupter including a shunt wire current sensor and a processor having a thermal overload predictive function
App 20080088991 - Elms; Robert T. | 2008-04-17 |
Corded leakage-current detection and interruption apparatus
Grant 7,359,167 - Elms April 15, 2 | 2008-04-15 |
Arc fault circuit interrupter and method for disabling series arc protection during current transients
Grant 7,359,168 - Elms , et al. April 15, 2 | 2008-04-15 |
Circuit interrupter including nonvolatile memory storing cause-of-trip information
App 20070297113 - Domitrovich; Thomas A. ; et al. | 2007-12-27 |
Arc fault circuit interrupter for a compressor load
Grant 7,268,989 - Parker , et al. September 11, 2 | 2007-09-11 |
Electrical switching apparatus and receptacle including automatic miswiring protection
App 20070188955 - Elms; Robert T. | 2007-08-16 |
Method and arc fault circuit interrupter employing a hysteresis value for compressor rumble
Grant 7,253,996 - Elms , et al. August 7, 2 | 2007-08-07 |
Electrical switching apparatus including a second trip circuit responding to failure of a first trip circuit to provide a repetitive signal
App 20070165342 - Elms; Robert T. | 2007-07-19 |
Receptacle providing sustained excessive voltage protection
App 20070159738 - Natili; Thomas E. ; et al. | 2007-07-12 |
Two pole circuit interrupter employing a single arc fault or ground fault trip circuit
App 20070132531 - Elms; Robert T. | 2007-06-14 |
Circuit interrupter including arc fault test and/or ground fault test failure indicator
Grant 7,215,520 - Elms , et al. May 8, 2 | 2007-05-08 |
Arc fault circuit interrupter and method for disabling series arc protection during current transients
App 20070086124 - Elms; Robert T. ; et al. | 2007-04-19 |
Surge receptacle apparatus and power system including the same
App 20070086141 - Elms; Robert T. | 2007-04-19 |
Arc fault circuit interrupter and method for inhibiting series arc protection based on dimmer phase angle
App 20060279883 - Elms; Robert T. ; et al. | 2006-12-14 |
Fault detector for two line power distribution system and protection apparatus incorporating the same
Grant 7,149,066 - Elms , et al. December 12, 2 | 2006-12-12 |
Arc fault circuit interrupter for a compressor load
App 20060227469 - Parker; Kevin L. ; et al. | 2006-10-12 |
Method and arc fault circuit interrupter employing a hysteresis value for compressor rumble
App 20060227468 - Elms; Robert T. ; et al. | 2006-10-12 |
Corded leakage-current detection and interrupton apparatus
App 20060181820 - Elms; Robert T. | 2006-08-17 |
Circuit interrupter including arc fault test and/or ground fault test failure indicator
App 20060018059 - Elms; Robert T. ; et al. | 2006-01-26 |
Arc fault circuit interrupter
App 20060018060 - Elms; Robert T. ; et al. | 2006-01-26 |
Fault detector for two line power distribution system and protection apparatus incorporating the same
App 20050073780 - Elms, Robert T. ; et al. | 2005-04-07 |
Power circuit tester apparatus and method
Grant 6,850,073 - Elms , et al. February 1, 2 | 2005-02-01 |
Power circuit tester apparatus and method
App 20040174173 - Elms, Robert T. ; et al. | 2004-09-09 |
Low energy pulsing device and method for electrical system arc detection
Grant 6,785,104 - Tallman , et al. August 31, 2 | 2004-08-31 |
Breaker failure annunciator system
Grant 6,744,254 - Clarey , et al. June 1, 2 | 2004-06-01 |
Testing device for detecting and locating arc faults in an electrical system
Grant 6,734,682 - Tallman , et al. May 11, 2 | 2004-05-11 |
Ground fault/arc fault circuit interrupter and method of testing the same with a test button and a reset button
Grant 6,720,872 - Engel , et al. April 13, 2 | 2004-04-13 |
Method and apparatus for determining frequency of an alternating current signal of an electric power system
Grant 6,717,394 - Elms April 6, 2 | 2004-04-06 |
Test button assembly for circuit breaker
Grant 6,710,687 - Elms , et al. March 23, 2 | 2004-03-23 |
ARC fault or ground fault or ARC fault/ground fault trip signal generator and trip unit employing the same
Grant 6,707,651 - Elms , et al. March 16, 2 | 2004-03-16 |
Test button assembly for circuit breaker
App 20030231089 - Elms, Robert T. ; et al. | 2003-12-18 |
ARC fault or ground fault or ARC fault / ground fault trip signal generator and trip unit employing the same
App 20030223161 - Elms, Robert T. ; et al. | 2003-12-04 |
Method and apparatus for determining frequency of an alternating current signal of an electric power system
App 20030178982 - Elms, Robert T. | 2003-09-25 |
Breaker failure annunciator system
App 20030169548 - Clarey, Robert J. ; et al. | 2003-09-11 |
Low energy pulsing device and method for electrical system arc detection
App 20030169545 - Tallman, David M. ; et al. | 2003-09-11 |
Testing device for detecting and locating arc faults in an electrical system
App 20030169051 - Tallman, David M. ; et al. | 2003-09-11 |
Circuit interrupter with test actuator for ground fault and arc fault test mechanisms
Grant 5,982,593 - Kimblin , et al. November 9, 1 | 1999-11-09 |
Arc fault detection apparatus and circuit breaker incorporating same
Grant 5,835,321 - Elms , et al. November 10, 1 | 1998-11-10 |
Apparatus for harmonic analysis of waveforms in an AC electrical system
Grant 5,754,440 - Cox , et al. May 19, 1 | 1998-05-19 |
Sure chip
Grant 5,751,234 - Schlotterer , et al. May 12, 1 | 1998-05-12 |
Apparatus for triggering alarms and waveform capture in an electric power system
Grant 5,706,204 - Cox , et al. January 6, 1 | 1998-01-06 |
Calibration of microcomputer-based metering apparatus
Grant 5,706,214 - Putt , et al. January 6, 1 | 1998-01-06 |
Universal power module
Grant 5,661,643 - Blakely , et al. August 26, 1 | 1997-08-26 |
Data collection and processing for digital AC power system monitor/analyzer
Grant 5,587,917 - Elms December 24, 1 | 1996-12-24 |
Sure chip
Grant 5,525,985 - Schlotterer , et al. June 11, 1 | 1996-06-11 |
Electrical contactor system with transfer of scaled overload information
Grant 5,493,468 - Hunter , et al. February 20, 1 | 1996-02-20 |
Apparatus for generating a signal representative of total harmonic distortion in waveforms of an A/C electrical system
Grant 5,487,016 - Elms January 23, 1 | 1996-01-23 |
Optically isolated pulse width modulation metering
Grant 5,406,071 - Elms April 11, 1 | 1995-04-11 |
Energy monitoring system for a plurality of local stations with snapshot polling from a central station
Grant 5,384,712 - Oravetz , et al. * January 24, 1 | 1995-01-24 |
Energy monitoring system for a plurality of local stations with snapshot polling from a central station
Grant 5,315,531 - Oravetz , et al. May 24, 1 | 1994-05-24 |
Bipolar analog-to-digital conversion apparatus with unipolar current and voltage modes
Grant 5,289,191 - Elms February 22, 1 | 1994-02-22 |
Sure chip plus
Grant 5,270,898 - Elms , et al. December 14, 1 | 1993-12-14 |
Bidirectional communication and control network with programmable microcontroller interfacing digital ICs transmitting in serial format to controlled product
Grant 5,134,691 - Elms July 28, 1 | 1992-07-28 |
Microcomputer controlled electric contactor with power loss memory
Grant 5,050,172 - Elms , et al. September 17, 1 | 1991-09-17 |
Systems for transmitting data via telephone lines
Grant 5,038,372 - Elms , et al. August 6, 1 | 1991-08-06 |
Bidirectional communication and control network with programmable microcontroller interfacing digital ICS and controlled product
Grant 5,007,013 - Elms April 9, 1 | 1991-04-09 |
Compressor surge detection system
Grant 4,940,391 - Elms , et al. July 10, 1 | 1990-07-10 |
AC electric energy meter having drive circuit including stepper motor for driving mechanical register
Grant 4,896,105 - Engel , et al. January 23, 1 | 1990-01-23 |
Wide dynamic range current measuring apparatus
Grant 4,876,502 - Verbanets , et al. October 24, 1 | 1989-10-24 |
Digital pulse generator for controlled thyristor switches and motor drive embodying the same
Grant 4,771,224 - Elms September 13, 1 | 1988-09-13 |
Master metering module with voltage selector
Grant 4,734,639 - Saletta , et al. March 29, 1 | 1988-03-29 |
Ballast adaptor for improving operation of fluorescent lamps
Grant 4,631,450 - Lagree , et al. December 23, 1 | 1986-12-23 |
Bus differential relay
Grant 4,623,949 - Salowe , et al. November 18, 1 | 1986-11-18 |
Starting and operating method and apparatus for discharge lamps
Grant 4,525,650 - Hicks , et al. June 25, 1 | 1985-06-25 |
Apparatus for operating HID lamp at high frequency with high power factor and for providing standby lighting
Grant 4,506,195 - Elms March 19, 1 | 1985-03-19 |
Circuit interrupter with front panel numeric display
Grant 4,476,511 - Saletta , et al. October 9, 1 | 1984-10-09 |
Motor control apparatus with short term undervoltage motor mode saver
Grant 4,453,117 - Elms , et al. June 5, 1 | 1984-06-05 |
Motor control apparatus with parallel input, serial output signal conditioning means
Grant 4,434,390 - Elms February 28, 1 | 1984-02-28 |
Circuit interrupter with solid state digital trip unit and positive power-up feature
Grant 4,377,836 - Elms , et al. March 22, 1 | 1983-03-22 |
Solid-state load protection system having an improved inverse time delay circuit
Grant 4,368,500 - Conroy, Jr. , et al. January 11, 1 | 1983-01-11 |
High accuracy AC electric energy metering system
Grant 4,365,302 - Elms December 21, 1 | 1982-12-21 |
Circuit interrupter with digital trip unit and means to enter trip settings
Grant 4,351,012 - Elms , et al. September 21, 1 | 1982-09-21 |
Circuit interrupter with digital trip unit and optically-coupled data input/output system
Grant 4,338,647 - Wilson , et al. July 6, 1 | 1982-07-06 |
Circuit interrupter with digital trip unit and power supply
Grant 4,331,999 - Engel , et al. May 25, 1 | 1982-05-25 |
AC Electric energy meter utilizing a counter as an integrator
Grant 4,250,552 - Elms February 10, 1 | 1981-02-10 |
People protecting ground fault circuit breaker utilizing waveform characteristics
Grant 4,247,879 - Elms , et al. January 27, 1 | 1981-01-27 |
Compact ballast for fluorescent lamp which provides excellent lamp power regulation
Grant 4,162,430 - Cadoff , et al. July 24, 1 | 1979-07-24 |
Variable inductance ballast apparatus for HID lamp
Grant 4,162,428 - Elms July 24, 1 | 1979-07-24 |
Ballast circuit for accurately regulating HID lamp wattage
Grant 4,162,429 - Elms , et al. July 24, 1 | 1979-07-24 |
Circuit breaker apparatus including asymmetrical fault detector
Grant 4,104,691 - Shimp , et al. August 1, 1 | 1978-08-01 |
Add-on instant restrike device for an HID lamp
Grant 4,103,209 - Elms July 25, 1 | 1978-07-25 |
People-protecting ground fault circuit interrupter
Grant 4,080,640 - Elms , et al. March 21, 1 | 1978-03-21 |
Apparatus and method for sustaining the operation of HID lamps
Grant 4,057,750 - Elms , et al. November 8, 1 | 1977-11-08 |
Luminaire having ballast circuitry in photocontrol housing
Grant 3,949,211 - Elms April 6, 1 | 1976-04-06 |
Low-cost power-reducing device for hid lamp
Grant 3,925,705 - Elms , et al. December 9, 1 | 1975-12-09 |
Sensing Amplifier And Trip Circuit Particularly For Ground Fault Circuit Interrupter
Grant 3,852,642 - Engel , et al. December 3, 1 | 1974-12-03 |
Electronic Wattmeter Including A Solid-state Logarithmic Multiplier
Grant 3,764,908 - Elms October 9, 1 | 1973-10-09 |
Low Cost Transistorized Inverter
Grant 3,753,071 - Engel , et al. August 14, 1 | 1973-08-14 |
Rectifier Operable From Dual Input Voltages For Use With Ballasted Discharge Lamps
Grant 3,733,541 - Elms May 15, 1 | 1973-05-15 |
Dynamic Reactorless High-frequency Vapor Lamp Ballast
Grant 3,648,106 - Engel , et al. March 7, 1 | 1972-03-07 |
Circuit Breaker Device Including Improved Overcurrent Protective Device
Grant 3,602,783 - Engle , et al. August 31, 1 | 1971-08-31 |
Phase-controlled Universal Ballast For Discharge Devices
Grant 3,590,316 - Engel , et al. June 29, 1 | 1971-06-29 |
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