Combustion – Illuminating flash device – e.g. – photographic bulb – etc. – Fuel charge within sealed transparent casing – e.g. – bulb
Patent
1982-05-26
1984-05-01
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
044458479
ABSTRACT:
A photoflash lamp, particularly a miniature flashlamp, having improved light output and comprising an envelope having a base portion with an inner concave shape with a pair of spaced leads positioned within the base. A primer is deposited in the envelope on the concave surface over the base and extending leads. A combustible metal shred mass is precompressed externally of the envelope to a diameter less than the internal diameter of the envelope and is constructed with sufficient resiliency whereby the precompressed mass partially expands within the envelope to provide minimal though effective support of the shred mass therein while at the same time providing a relatively unobstructed clearance about the shred mass between the mass and internal surfaces of the side walls of the envelope to assure enhanced ignition of the mass.
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Translation of German Utility Model 7,029,839, (May 30, 1973).
Dority Jr. Carroll B.
Fraley Lawrence R.
GTE Products Corporation
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