Lamp socket for two different types of lamps

Electrical connectors – With coupling movement-actuating means or retaining means in... – Bayonet coupling part movable about its axis

Reexamination Certificate

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Reexamination Certificate

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11439287

ABSTRACT:
A lamp socket includes a socket having a bottom from which an outer wall and an inner wall extend. A base is engaged with the space defined by the inner wall and two first wires are connected with the base. Two flexible contact pieces each have a first end fixed to an inner periphery of the outer wall and a second end of each contact piece has a curved portion. Two second wires are connected between the two first ends of the two contact pieces and the two first wires. A cover is engaged with the socket and has a circular hole communicating with the base, and two slots which are located corresponding to the two contact pieces. A first type of lamp is connected to the base and a second type of lamp is connected with the two contact pieces via the two slots.

REFERENCES:
patent: 580320 (1897-04-01), Jones
patent: 2259096 (1941-10-01), Alden
patent: 2290701 (1942-07-01), Mueller
patent: 2292052 (1942-08-01), Chirelstein
patent: 2319693 (1943-05-01), Kulka
patent: 2356601 (1944-08-01), MacCarthy
patent: 2372051 (1945-03-01), Beal
patent: 2380211 (1945-07-01), Biller
patent: 2571881 (1951-10-01), Howard
patent: 3955872 (1976-05-01), Brudy
patent: 5542857 (1996-08-01), Hume et al.
patent: 6254252 (2001-07-01), Coushaine et al.
patent: 2003/0139078 (2003-07-01), Ruthenberg

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