Method of making photoflash lamp

Details Method of making photoflash lamp Method of making photoflash lamp

1982-03-01

1983-12-20

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

417362, F21K 502

Patent

active

044214936

ABSTRACT:
A method of making a photoflash lamp wherein an elongated piece of glass tubing is sealed at a first end thereof to secure a pair of lead-in wires therein. Thereafter, a first quantity of primer material is positioned within the glass tubing through a second, open end thereof and deposited on an internal bottom surface of the tubing. A quantity of combustible material (e.g., zirconium) is then air blown within the tubing member, and thereafter a thin member (mica disk) is inserted through the open end, said disk having a second quantity of primer material thereon. The tubing member is then restricted, a combustion-supporting atmosphere (e.g., oxygen) introduced therein, and the second open end of the tubing member is sealed (tipped) to define the finished envelope.

REFERENCES:
patent: 3220224 (1965-11-01), Baird
patent: 3228216 (1966-01-01), Desaulniers et al.
patent: 3303674 (1967-02-01), Anderson
patent: 3304144 (1967-02-01), Anderson
patent: 3630650 (1971-12-01), Kaufmann et al.
patent: 4229161 (1980-10-01), Bouchard et al.
patent: 4348173 (1982-09-01), English et al.

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