Structure of an electric socket

Details Structure of an electric socket Structure of an electric socket

1992-06-26

1993-05-04

Pirlot, David L.

Electrical connectors

With insulation other than conductor sheath

Plural-contact coupling part

439840, H01R 2500

Patent

active

052075990

ABSTRACT:
An electric socket comprises an insulative housing having two cavities formed therein, an elongate generally pantile shaped terminal plate in each cavity, and a helical spring element secured snugly against each terminal plate. The prongs of an electrical plug can be inserted between the terminal plates and spring elements in respective cavities, wherein the blade type prongs are firmly wedged between associated spring elements and terminal plates so as to be in reliable electrical communication therewith. The housing can be further provided with a third, central cavity having a similar spring element disposed therein and a grounding plate of conforming curvature secured to a lower portion of the spring element. An additional rod type prong on an electrical plug can be inserted into the central cavity between adjacent turns of the spring element whose pitch distance is less than the diameter of the prong and received through a cooperating aperture on the grounding plate.

REFERENCES:
patent: 1678745 (1928-07-01), Schellinger
patent: 3383647 (1968-05-01), Duffield et al.

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