Method of making a non-shorting photoflash lamp

Details Method of making a non-shorting photoflash lamp Method of making a non-shorting photoflash lamp

1977-11-28

1979-05-22

Kellogg, Arthur D.

Glass manufacturing

Processes

Fusion bonding of glass to a formed part

65138, 65140, C03C 2702

Patent

active

041557360

ABSTRACT:
A glass support bead through which lead-in wires extend within a miniature type of flash lamp is shaped to have a raised narrow ridge extending between the lead-in wires so that when the lamp flashes the lead-in wires will melt back at the sides of the raised ridge of the support bead. The support bead is formed by shaping jaws which squeeze against the heat-softened bead material to form the raised narrow ridge.

REFERENCES:
patent: 3260583 (1966-07-01), Eisler
patent: 3816054 (1974-06-01), Baldrige et al.
patent: 3897196 (1975-07-01), Saunders et al.
patent: 3919750 (1975-11-01), Saunders et al.
patent: 3941555 (1976-03-01), Anderson et al.

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