Protective lampholder for bayonet base lamp

Details Protective lampholder for bayonet base lamp Protective lampholder for bayonet base lamp

1981-12-01

1984-07-24

McQuade, John

Geometrical instruments

339 42, 339 88R, 339188R, H01R 13625

Patent

active

044615230

ABSTRACT:
A protective lampholder for a bayonet base lamp includes an insulating cup interposed between the base of the lamp and contacts provided in the lampholder for supplying power to the lamp. The cup covers the contacts when the lamp is removed, but exposes them when the lamp is inserted and rotated to an operating position.

REFERENCES:
patent: 1249711 (1917-12-01), Berg
patent: 2470280 (1949-05-01), Ackerman

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