Photoflash lamp and method of making

Details Photoflash lamp and method of making Photoflash lamp and method of making

1979-01-02

1980-10-21

Dority, Jr., Carroll B.

Combustion

Illuminating flash device, e.g., photographic bulb, etc.

Fuel charge within sealed transparent casing, e.g., bulb

F21K 502

Patent

active

042291615

ABSTRACT:
An electrically-activated photoflash lamp which includes a thin member (e.g. a mica disk) therein located between the lamp's combustible shreds and primer material. The disk prevents the shreds from contacting the primer material and any portions of the lamp's electrical conductors which have access to the interior of the envelope. A method of making the lamp is also provided.

REFERENCES:
patent: 2201294 (1940-05-01), Kreidler
patent: 3228216 (1966-01-01), Desaulniers et al.
patent: 3602619 (1971-08-01), Van der Tas et al.
patent: 3884615 (1975-05-01), Sobieski
patent: 3930784 (1976-01-01), Anderson
patent: 4082494 (1978-04-01), Shaffer

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