Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1974-10-21
1976-06-29
Mullins, James B.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324133, 340255, G01R 3102
Patent
active
039671950
ABSTRACT:
A hand held circuit tester for use in detecting and identifying wiring errors in standard three-wire electrical outlets. Indicator lights, connected between each pair of the three plug-type terminals, are positioned side-by-side on one end of the device. Reference characters may then be aligned with the individual lights and the condition of the wiring can readily be determined. Because of the location of the indicator lights, they may be viewed through openings on three sides permitting use of the device in awkward locations. The components used in the manufacture of the device permit easy assembly of the components into circuits and facilitate insertion of the circuits into an insulated housing to form the completed device.
REFERENCES:
patent: 3383588 (1968-05-01), Stull et al.
patent: 3559200 (1971-01-01), Walters
patent: 3588861 (1971-06-01), Meyer
patent: 3783371 (1974-01-01), McMillan
Averitt Marnie Carlton
Bunnell Edward Dennman
AMP Incorporated
Mullins James B.
Pitts Robert W.
Raring Frederick W.
Seitchik Jay L.
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