Electric lamp and discharge devices – With envelope – Having base and connector
Patent
1982-06-03
1985-09-17
Chatmon, Saxfield
Electric lamp and discharge devices
With envelope
Having base and connector
339 14T, 339195L, 339 38, 313622, 313623, H01J 548, H01J 550
Patent
active
045423164
ABSTRACT:
The invention relates to a single ended discharge lamp, such as a CID or CSI lamp having a bi-pin base. The base is such as to fit a socket suitable for lamps such as tungsten halogen filament lamps for which lower voltages are used and is adapted to make use in such sockets possible. The base or cap member is provided in the usual manner with two pins but at least one of the pins is a dummy pin. At least one extra terminal is disposed to the side of the base whereby electrical connection to one electrode of the lamp is by a flying lead. The other terminal may be the other pin or may be disposed at the other side of the base. In that event both pins may be electrically disconnected from the electrodes and serve only for support or positioning of the lamp.
REFERENCES:
patent: 3315116 (1967-04-01), Beese
patent: 3617797 (1971-11-01), Meijer et al.
patent: 3675068 (1972-07-01), Strauss
patent: 3885149 (1975-05-01), Wolfe et al.
patent: 3960278 (1976-06-01), Vause
patent: 4103201 (1978-07-01), Mosby
patent: 4262229 (1981-04-01), Bienvenue et al.
patent: 4302699 (1981-11-01), Keefe et al.
Lamps and Lighting, A manual of lamps and lighting prepared by members of staff of Thorn Lighting Ltd.; editors, Henderson and Marsden, pp. 274-276.
Ainsworth Thomas S.
Hall Robert
Chatmon Saxfield
Thorn Emi plc
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