Electrical connectors – With coupling movement-actuating means or retaining means in... – Coupling part with relatively pivotable concentric...
Patent
1992-08-21
1994-09-06
Schwartz, Larry I.
Electrical connectors
With coupling movement-actuating means or retaining means in...
Coupling part with relatively pivotable concentric...
439312, 439106, H01R 1362
Patent
active
053443330
ABSTRACT:
A locking apparatus for a standard two or three prong electrical plug connector assembly which includes a retro-fit face plate for attachment to the male plug end of the electrical connector assembly and a rotatable sleeve housing for jacketing a portion of the female socket end of the electrical connector assembly. The face plate includes a plurality of male threads provided along an outer perimeter edge thereof which threadingly engage a coordinate plurality of grooves provided to an inner wall of the sleeve housing adjacent a male plug receiving end to twist lock the two connector ends together. The sleeve housing also includes a radially inward extending notched key way at its other end which is received within a receiving slot provided to the outer periphery of the electrical outlet insulator body and which cooperates with a stop member provided to the outlet insulator body to limit lateral (rotational) travel of the sleeve housing about the outlet insulator body. In an alternate embodiment, a shortened rotatable sleeve housing is adapted for snap fit insertion within a wall-mounted electrical outlet cover plate for twist locking a male plug connector end thereto.
REFERENCES:
patent: 839224 (1906-12-01), Stokes
patent: 2517364 (1950-08-01), Torresen
patent: 3461417 (1969-08-01), Schumacher et al.
patent: 3605059 (1991-09-01), Lipinski
patent: 3742427 (1973-06-01), Ballard
patent: 3891289 (1975-06-01), Hanke
patent: 4318578 (1982-03-01), Ericson et al.
patent: 5087209 (1992-02-01), Faucher
Feix Thomas C.
Schwartz Larry I.
Vu Hien D.
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