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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ALSO PUBLISHED AS: 8125228
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ATTORNEY / AGENT: (SPONSORED)

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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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Patent Owner(s)

Patent OwnerAddressTotal Patents
PASS & SEYMOUR, INC.SYRACUSE, NY261

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Finlay,, Sr David A - 36 36
Macbeth, Bruce F Syracuse, NY 63 731
Packard, Thomas N Syracuse, NY 61 854
Richards, Jeffrey C Baldwinsville, NY 56 303

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
PASS & SEYMOUR, INC. (2)
8,299,799 Electrical device with miswire protection and automated testing 2 2010
8,446,151 Protective device 0 2011
 
HON HAI PRECISION INDUSTRY CO., LTD. (1)
8,601,316 Power supply system 0 2011