Lightbulb socket

Details Lightbulb socket Lightbulb socket

1982-10-12

1985-04-23

Shepperd, John W.

Electricity: circuit makers and breakers

Combined with or actuated by connector coupling

Coupling-actuated switch

200 5110, H01R 3318

Patent

active

045131821

ABSTRACT:
A lightbulb socket includes first and second contact members for electrically connecting two conductors and the central and side electrodes on the base of a bulb, and a threaded element for receiving the base of the bulb. The threaded element is held by spring action in a first position in relation to a shell of the socket when the bulb is unscrewed from the threaded element and is movable to a second position in relation to the shell against the spring action when the bulb is screwed into the threaded element. Coupling elements are arranged between the conductors and the contact members to break the contact therebetween when the threaded element is in its first position and to close the circuit to the bulb when the threaded element is brought to its second position. The coupling elements also serve as springs for moving the threaded element to its first position.

REFERENCES:
patent: 2004201 (1935-06-01), Goodlin et al.
patent: 2158862 (1939-05-01), Phelps
patent: 2688669 (1954-09-01), Quill

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