Lamp having screw base

Details Lamp having screw base Lamp having screw base

1975-12-19

1977-04-26

Chatmon, Jr., Saxfield

Electric lamp and discharge devices

With envelope

Having base and connector

313315, 339144R, 339146, H01J 548, H01J 550

Patent

active

040203824

ABSTRACT:
A glass screw base of a bulb is provided with a first channel for accomodating solder filling used for mechanical locking of the glass base to a metal screw shell. A second, narrow channel is made in the base to receive a lead wire and direct it to the rim of the shell whereupon an electrical contact is established by a minimal amount of solder and solder flux.

REFERENCES:
patent: 1439471 (1922-12-01), Hohl
patent: 1577151 (1926-03-01), Abelt, Jr.
patent: 1650289 (1927-11-01), McGinley
patent: 2159812 (1939-05-01), Malloy
patent: 3162502 (1964-12-01), Verbeek
patent: 3265922 (1966-08-01), Verbeek
patent: 3551725 (1970-12-01), Brundige

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