Electrical adapter plug

Details Electrical adapter plug Electrical adapter plug

1990-02-21

1991-01-29

Pirlot, David L.

Electrical connectors

With insulation other than conductor sheath

Plural-contact coupling part

439675, H01R 1718

Patent

active

049883151

ABSTRACT:
An electrical adapter plug having a body insertable into a mating socket sleeve of a vehicle lighter receptacle. The plug features a pair of ideally located circumferentially-spaced, retractable contacts projecting beyond the periphery of the plug body to establish improved retention and electrical contact between the adapter plug and the receptacle. The two contacts are preferably angularly spaced on the periphery of the plug in the range of about 20.degree. to 150.degree.. Means are located on the periphery of the plug body generally opposite the pair of contacts symmetrically disposed on or about a line which bisects the space angle between the two contacts. Three different embodiments of these means are shown, namely, a groove, a flat surface, and an elongated deformation. All of these embodiments cooperate with the spaced contacts to improve retention.

REFERENCES:
patent: 2489037 (1949-11-01), Kailer

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