Geometrical instruments
Patent
1980-01-11
1981-10-13
Desmond, Eugene F.
Geometrical instruments
339 91L, H01R 13629
Patent
active
042945038
ABSTRACT:
Locking means for a lampholder having an opening to receive a threaded component. A locking member is captively carried by the lampholder and is mounted for limited movement in a direction normal to the axis of the opening, and the locking member has at least one inwardly facing edge for contact with a threaded component threadably inserted into the lampholder, the locking member permitting threaded insertion of the threaded component and preventing inadvertent threaded removal.
REFERENCES:
patent: 1566830 (1925-12-01), Clark
patent: 3871732 (1975-03-01), Appleton
patent: 4081668 (1978-03-01), Mori
Desmond Eugene F.
Gilbert Products
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