Base for single pin elongated lamp

Details Base for single pin elongated lamp Base for single pin elongated lamp

1995-02-08

1996-08-13

O'Shea, Sandra L.

Electric lamp and discharge devices

With envelope

Having base and connector

31331802, 31331803, 439602, H01J 548

Patent

active

055459447

ABSTRACT:
A fluorescent lamp includes: an elongated, hermetically sealed transluscent glass envelope containing an electrode at each end thereof, each of said electrodes including an electron emitting portion and two lead-in wires. The lead-in wires extend outside of the envelope and are connected together to form one lead-in wire. A base is provided at each end of the envelope with each of the bases comprising a cup-shaped, electrically conductive outer shell having a bottom and an upstanding peripheral wall; an opening in the bottom and an electrically insulating member fixed in the opening. An electrically conductive, depending pin is affixed to the electrically insulating member; and an electrically insulating, upstanding wall is formed on the inner or lamp side of the insulating member, opposite the pin and within the confines of the peripheral wall. The lead-in wire is electrically connected to the depending pin and the bases are affixed to the envelope.

REFERENCES:
patent: 3014196 (1961-12-01), Shappel
patent: 4994710 (1991-02-01), Roelevink et al.
patent: 5013962 (1991-05-01), Desclos
patent: 5032759 (1991-07-01), Thiry et al.

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