US Patent Application No: 2011/0148,423

Number of patents in Portfolio can not be more than 2000

PROTECTIVE DEVICE WITH AUTOMATED SELF-TEST

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Importance

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Abstract

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The present invention is directed to an electrical wiring device that includes at least one sensor that provides a sensor output signal corresponding to electrical perturbations propagating on the plurality of line terminals or the plurality of load terminals. A protective circuit assembly configured to detect a fault condition when the sensor output signal substantially corresponds to at least one predetermined fault criterion and generate a trip actuation signal in response thereto. A solenoid coil is configured to generate a trip actuation force in response to the trip actuation signal. A circuit interrupter assembly includes movable contacts configured to be driven into a tripped state in response to the trip actuation force. An automatic fault simulation circuit is configured to generate a self-test signal without execution of software code. The self-test signal is generated such that it is sensed by the at least one sensor if the at least one sensor is operational. An end-of-life detection circuit is coupled to the protective circuit assembly. The end-of-life detection circuit is configured to monitor the protective circuit assembly without execution of software code. The end-of-life detection circuit is configured to substantially inhibit the trip actuation force when the protective circuit assembly detects the fault condition and generates the trip actuation signal in response to the self-test signal. The end-of-life detection circuit is configured to generate an end-of-life response if the protective circuit assembly does not respond to the self-test signal within a predetermined period of time.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
PASS & SEYMOUR, INC.SYRACUSE, NY229

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Finlay,, SR David A Marietta, US 31 98
Macbeth, Bruce F Syracuse, US 47 917
Packard, Thomas N Syracuse, US 51 997
Richards, Jeffrey C Baldwinsville, US 44 468

Cited Art Landscape

Patent Info (Count) # Cites Year
 
GENERAL ELECTRIC COMPANY (3)
* 4,672,501 Circuit breaker and protective relay unit 273 1984
* 6,472,882 Fail-safe electronic circuit breaker 19 2000
* 2010/0165,520 Method and Apparatus For Tripping Circuit Breaker 5 2008
 
Other [Check patent profile for assignment information] (4)
* 4,998,067 Portable test apparatus for low current circuit breakers 15 1989
* 5,960,888 Engine fire suppression system 20 1998
* 6,804,904 Cotton collection trailer mobile sign 9 2002
* 2004/0004,795 Neutral switch test mechanism for a circuit interrupter 4 2003
 
YAZAKI CORPORATION (1)
* 6,984,988 Ground-fault detecting device and insulation resistance measuring device 18 2003
 
Pass & Seymar, Inc. (1)
* 6,980,005 Circuit protection device with timed negative half-cycle self test 49 2004
 
Square D Company (1)
* 6,313,642 Apparatus and method for testing an arcing fault detection system 29 1997
 
FENWAL, INC. (1)
* 5,714,125 Device for collecting a blood sample from a plastic segment tube 28 1996
 
COOPER TECHNOLOGIES COMPANY (1)
* 6,697,237 Conversion of standard class a ground-fault circuit-interrupters, (GFCI), to a class a ground-fault circuit interrupter with open neutral protection 15 2000
 
X-L Synergy, LLC (1)
* 6,262,871 Fail safe fault interrupter 104 1999
 
PASS & SEYMOUR, INC. (6)
* 6,421,214 Arc fault or ground fault detector with self-test feature 68 2000
* 6,674,289 Circuit protection device with half cycle self test 51 2000
* 2001/0033,468 Circuit protection device with half cycle self test 6 2000
* 6,873,158 Circuit protection device with half cycle self test 45 2003
* 7,253,629 Circuit protection device with grounded neutral half cycle self test 36 2004
* 2005/0212,522 Circuit protection device with timed negative half-cycle self test 6 2004
 
Cooper Wiring Devices, Inc. (1)
* 5,638,243 Miswiring indicator in ground fault protection devices 28 1996
 
HUANG, HUADAO (2)
* 2003/0016,477 Ground fault interruption receptacle 5 2001
* 6,580,344 Ground fault interruption receptacle 66 2001
 
Leviton Manufacturing Co., Inc. (8)
* 5,600,524 Intelligent ground fault circuit interrupter 150 1995
* 6,111,733 Intelligent ground fault circuit interrupter 91 1998
* 6,040,967 Reset lockout for circuit interrupting device 166 1998
* 6,052,265 Intelligent ground fault circuit interrupter employing miswiring detection and user testing 133 1998
* 6,437,700 Ground fault circuit interrupter 107 2000
* 2002/0135,957 Neutral switch test mechanism for a circuit interrupter 17 2001
* 6,611,406 Ground fault circuit interrupter incorporating miswiring prevention circuitry 36 2001
* 7,911,746 GFCI with self-test and remote annunciation capabilities 5 2007
 
HUBBELL INCORPORATED (2)
* 2002/0181,175 Digital fault interrupter with self-testing capabilities 5 2002
* 2003/0086,220 GFCI with reverse line/load wiring prevention 4 2002
 
EATON CORPORATION (1)
* 5,459,630 Self testing circuit breaker ground fault and sputtering arc trip unit 172 1993
 
MODELEC S.A. (1)
* 4,742,422 Self-monitoring fault current safety switch 31 1986
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
GENERAL ELECTRIC COMPANY (1)
* 9,214,797 Apparatus, systems, and methods for operation of a trip unit in a circuit protection device 0 2013
 
HON HAI PRECISION INDUSTRY CO., LTD. (2)
* 8,601,316 Power supply system 0 2011
* 2012/0179,929 POWER SUPPLY SYSTEM 2 2011
 
PASS & SEYMOUR, INC. (4)
* 8,299,799 Electrical device with miswire protection and automated testing 5 2010
* 2011/0115,511 ELECTRICAL DEVICE WITH MISWIRE PROTECTION AND AUTOMATED TESTING 2 2010
* 8,446,151 Protective device 0 2011
* 2012/0140,369 PROTECTIVE DEVICE 1 2011
* Cited By Examiner