Intelligent ground fault circuit interrupter employing miswiring detection and user testing

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6052265
SERIAL NO

09197192

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An intelligent ground fault circuit interrupter device that incorporates a test and miswiring control circuit in addition to an independent GFCI circuit. Since the test and miswiring circuit is separate and independent of the GFCI circuit portion, it can be used with any circuit interrupting means that can be reset and which incorporates a test circuit. The test and miswiring circuit functions to indicate to a user when the device must be manually tested. The test time events occur upon first installation and on a monthly basis thereafter. The device also indicates that testing is required after occasions of power outage of sufficient time duration and after the device has been tripped by the occurrence of a ground fault. At the times when manual testing of the device is required, a visual and/or audible alarm is triggered and continues until a successful test and reset sequence is completed. The ability to detect when the device is incorrectly wired in an electrical wiring system is also provided. Upon detection of a miswiring condition, a visual and/or audible alarm is triggered to alert the user to the miswired condition. The alarm cannot be disabled unless the miswiring condition is removed.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
LEVITON MANUFACTURING CO., INC.LITTLE NECK, NY636

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bradley, Roger M North Belmore, NY 49 1450
Zaretsky, Albert Boynton Beach, FL 14 416

Cited Art Landscape

Patent Info (Count) # Cites Year
 
LEVITON MANUFACTURING CO., INC. (2)
* 5477412 Ground fault circuit interrupter incorporating miswiring prevention circuitry 102 1993
* 5600524 Intelligent ground fault circuit interrupter 154 1995
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (2)
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PEPPERL + FUCHS GMBH (1)
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7576959 Circuit interrupting device with automatic end-of-life test 9 2007
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7411766 Circuit interrupting device with end of life testing functions 27 2007
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HUBBELL INCORPORATED (13)
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CHEIL ELECTRIC WIRING DEVICES CO., LTD. (2)
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EATON CORPORATION (8)
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* Cited By Examiner