Dead-front electrical plug

Details Dead-front electrical plug Dead-front electrical plug

1975-09-02

1977-03-08

Lake, Roy

Geometrical instruments

339128, 339210M, H01R 1358

Patent

active

040109992

ABSTRACT:
A one-piece dead-front electrical plug comprises a dead-front member, conductive blades mounted therethrough, and two side covers hingedly connected to the dead-front member by integral web hinges. The side covers pivot between an open position affording access for making wiring connections between a cord and the conductive blades, and a closed position fully enclosing the wiring area. Each side cover has cord clamp teeth which cooperate to grip the cord. The web hinges are protected from longitudinal stress in one embodiment by side cover flanges which are matingly received in notch openings in the dead front member, and in another embodiment by dowel pins protruding from the dead-front member which are matingly received in openings in the side covers. Lateral stress protection of the web hinges is provided by an interengaging flange and groove structure of the side covers and dead-front member. A sealing compound barrier sleeve fits around the wiring connections and tightly against the dead-front member, and is filled with sealing compound to moisture-proof the wiring connections.

REFERENCES:
patent: 3784961 (1974-01-01), Gartland, Jr.

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