Electric lamp and discharge devices – With envelope – Having base and connector
Patent
1989-03-31
1990-05-22
O'Shea, Sandra
Electric lamp and discharge devices
With envelope
Having base and connector
439242, 439243, 439605, 439611, H01J 550, H01R 3302, H01R 1358, H01R 1700
Patent
active
049280325
ABSTRACT:
For converting a lamp with a screw-type base into a lamp with a bi-pin base, there is provided a cup-shaped adapter of electrical insulating material comprising a tubular body containing a bore that has internal threads threadedly receiving the external threads on the usual metal shell of the screw-type base. The adapter further comprises an end wall extending across the bore at one end of the tubular body and carrying two conductive pins extending through the end wall in laterally-spaced relation. First conductor within the adapter connected to one pin has a free end that engages the usual coniform end of the metal shell when the base is threaded into said bore, thereby establishing an electrical connection between the metal shell and said one pin. Second conductor connected to the other pin establishes an electrical connection between the usual eyelet of the base and the other pin when the base is threaded into said bore.
REFERENCES:
patent: 3019407 (1962-01-01), Donsky
patent: 3217116 (1965-11-01), Martin et al.
patent: 3915536 (1975-10-01), Glantz
Hetzel Frederick
Skoch Michael J.
Corcoran Edward M.
Corwin Stanley C.
General Electric Company
Jacob Fred
O'shea Sandra
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