Polarity protector

Details Polarity protector Polarity protector

1979-04-25

1980-12-16

McQuade, John

Geometrical instruments

339105, 339256RT, H01R 1364, H01R 1358

Patent

active

042393221

ABSTRACT:
A battery terminal harness is provided to connect to a battery with the harness having a first male terminal coupled to a first female battery terminal of one polarity and a second female terminal on the harness coupled to a second male battery terminal of the opposite polarity. To this standard construction an improvement is provided in the harness of an insulating support member with an opening between the harness terminals and each of the male and female harness terminals being mounted on and extending a fixed distance from the support member to mate electrically with its opposite battery terminal. An insulating washer-like resilient plastic cover member having an axial height exceeding the fixed distance of the harness terminals and having tab structure for securement to a harness terminal is provided. The connecting wires to an electric circuit lock through the support opening such that the cover member snaps axially over and is secured to one of the harness terminals, preferably the female terminal, whereby the cover member prevents any contact between the female terminals at all times to avoid inadvertent reverse polarity.

REFERENCES:
patent: 995674 (1911-06-01), Hertzberg
patent: 1277071 (1918-08-01), Hastings et al.
patent: 1712738 (1929-05-01), Spidel
patent: 2989722 (1961-06-01), O'Donnell
patent: 2992403 (1961-07-01), Hawk
patent: 2993189 (1961-07-01), Schelke
patent: 3059214 (1962-10-01), Heller
patent: 3185953 (1965-05-01), Prifogle
patent: 3487353 (1969-12-01), Massa
patent: 3980388 (1976-09-01), Nailor
patent: 4024953 (1977-05-01), Nailor
patent: 4084037 (1978-04-01), Morton

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