Gapped ground safety device

United States of America Patent

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Aug 14, 2007
Grant Date
Sep 2, 2004
app pub date
Sep 12, 2003
filing date
Sep 13, 2002

priority date (Note)
Expired

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Abstract

A gapped ground safety device is provided to protect workers on de-energized underground distribution cable from ground faults or accidental energization. The device comprises a combination precision gap and an MOV surge arrester.

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Patent Owner(s)

Patent Owner	Address
BRITISH COLUMBIA HYDRO AND POWER AUTHORITY	333 DUNSMUIR STREET 16TH FLOOR VANCOUVER BRITISH COLUMBIA V6B 5R3

International Classification(s)

H02H:EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Deines, Terence Donald	Burnaby, CA	1	1
Morton, Christopher Paul	Surrey, CA	1	1
Sawada, Jack H	Richmond, CA	1	1
Shum, Ching Wah	Vancouver, CA	1	1

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Gapped ground safety device

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United States of America Patent

10660503

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PATENT NO	7256978
APP PUB NO	20040169970A1
SERIAL NO	10660503
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
August 14, 2007	US,7256978,B2 US7256978B2	GRANTED PATENT AS SECOND PUBLICATION
September 02, 2004	US,20040169970,A1 US20040169970A1	FIRST PUBLISHED PATENT APPLICATION

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10660503

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