Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1982-07-12
1985-01-01
Krawczewicz, Stanley T.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
G01R 3102
Patent
active
044917813
ABSTRACT:
A tester unit for testing a patch cord to determine if a short, or a break in either of the conductive paths in the patch cord, exists. The tester unit includes a pair of jacks adapted to receive the plugs of a patch cord, and reverse connections of contacts in these jacks with the poles of an internally carried battery means.
REFERENCES:
patent: 2526891 (1950-10-01), Meyerhoff et al.
patent: 3064186 (1962-11-01), Vincent
patent: 3131347 (1964-04-01), Brooks et al.
patent: 4227146 (1980-10-01), Hodge
patent: 4385272 (1983-05-01), Whitehead
Krawczewicz Stanley T.
Mercer Fred O.
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