Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With coupling means
Patent
1989-07-12
1991-03-05
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With coupling means
324117R, 324522, 336176, G01R 122, G01R 3108
Patent
active
049980602
ABSTRACT:
In the disclosed fault detector, a casing has a u-shaped portion for receiving a cable and a portion extending from the u-shaped portion. A screw is mounted on said portion. A pressure device is mounted on the end of the screw and directed toward the u-shaped portion for holding the cable in the u-shaped portion. A magnetic lamination passes through the u-shaped portion. The pressure device is made of a magnetic material and a coil surrounds said laminations.
REFERENCES:
patent: 750525 (1904-01-01), Everest
patent: 2165290 (1939-07-01), Mitchell
patent: 3102988 (1963-09-01), Hoffman
patent: 3114880 (1963-12-01), Medlar
patent: 3253215 (1966-05-01), Moakler et al.
patent: 3453544 (1969-07-01), Schweitzer, Jr.
Karlsen Ernest F.
Pacific Scientific Company
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