Geometrical instruments
Patent
1978-08-23
1980-04-22
Abrams, Neil
Geometrical instruments
339206L, 339210T, H01R 1358
Patent
active
041992121
ABSTRACT:
The invention comprises an assembled electrical lamp socket construction having novel integral sealing means for the tower end derived from axial installation of a split plug wedging compressively within an outer socket shell and against insulation of wiring passing therethrough to retain electrical circuit contact assemblies in the tower. The plug is inserted with interengaging tapered surfaces in the tower end of the socket shell producing snap-in fit for the circumferential compressive engagement of the plug with the shell and a second interference compressive fit for the mating surfaces of the split plug halves. Apertures for insulated electric wires are formed in the mating surfaces with circumferential protrusions that encapsulate and compressively penetrate the wire insulation to form a seal thereabout. The tower preferably constructed of suitable non-conductive plastic material thereby prevents the entrance of moisture and debris into the socket through simple snap assembly without the need for external boots, potting compound or other additional sealing means.
REFERENCES:
patent: 817346 (1906-04-01), Stakelbeck
patent: 1910306 (1933-05-01), Pullon
patent: 2470280 (1949-05-01), Ackerman
patent: 3272913 (1966-09-01), Crimmins et al.
patent: 3383637 (1968-05-01), DeLano
patent: 3518617 (1970-06-01), Bosworth et al.
Abrams Neil
C. J. Edwards Company
Waldrop Neal A.
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