Elimination of exhaust tube relief in press-sealed lamp

Details Elimination of exhaust tube relief in press-sealed lamp Elimination of exhaust tube relief in press-sealed lamp

1986-08-06

1988-06-07

Ramsey, Kenneth J.

Electric lamp and discharge devices

Incandescent lamps

313318, 65 5926, 445 27, H01J 932

Patent

active

047499010

ABSTRACT:
A process for manufacturing an incandescent lamp includes evacuating the lamp through a hollow space formed in the lower portion of the lamp to be sealed by press jaws and sealing the lamp with press jaws whose surface is substantially flat.

REFERENCES:
patent: 3904909 (1975-09-01), Vause
patent: 3979627 (1976-09-01), Leadvaro et al.
patent: 4028577 (1977-06-01), Gates et al.
patent: 4243907 (1978-01-01), Kohl et al.
patent: 4469983 (1984-09-01), Grahmmann et al.
patent: 4603278 (1986-07-01), Devir et al.

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