Hand-held circuit tester with lens arrangement for viewing indic

Details Hand-held circuit tester with lens arrangement for viewing indic Hand-held circuit tester with lens arrangement for viewing indic

1977-01-14

1978-11-28

Strecker, Gerard R.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

340383, G01R 3102

Patent

active

041278070

ABSTRACT:
A hand-held electrical tester for checking the wiring of a wall receptacle. The blades of an electrical terminal protrude from one end of a housing which contains indicator lamps and electrical connecting means between the lamps and blades. Thus, the lightining of each lamp or combination of lamps indicates a predetermined wiring condition of a wall receptacle in which the terminal blades may be inserted. The housing is shaped to provide oppositely disposed push/pull surfaces to facilitate insertion and removal of the tester into and from a wall receptacle. The housing further includes compartments at one end thereof, each having a three-sided opening with a generally U-shaped lens disposed therein. Each of the compartments contains a lamp which can be viewed from the top, bottom and end of the tester.

REFERENCES:
patent: 1109450 (1914-09-01), Mitchell
patent: 1285840 (1918-11-01), Thomas
patent: 1313952 (1919-08-01), Proksch
patent: 2049224 (1936-07-01), Ribble et al.
patent: 2794167 (1957-05-01), Jones
patent: 3007599 (1961-11-01), Greasley
patent: 3286255 (1966-11-01), Sanchez
patent: 3383588 (1968-05-01), Stoll et al.
patent: 3555543 (1971-01-01), Lynch
patent: 3559200 (1971-01-01), Walters
patent: 3904958 (1975-09-01), Gartland et al.
patent: 3967195 (1976-06-01), Averitt et al.

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