Combustion – Illuminating flash device – e.g. – photographic bulb – etc. – Fuel charge within sealed transparent casing – e.g. – bulb
Patent
1975-02-03
1980-08-12
Dority, Jr., Carroll B.
Combustion
Illuminating flash device, e.g., photographic bulb, etc.
Fuel charge within sealed transparent casing, e.g., bulb
264165, 264332, 164 87, F21K 502
Patent
active
042170893
ABSTRACT:
A photoflash lamp in which the combustible material within the lamp envelope comprises a plurality of filaments released from the periphery of a rotating heat-extracting disk in contact with a melt of suitable combustible material, such as hafnium, zirconium or magnesium. Filament configurations are determined to a large degree by the peripheral geometry of the rotating disk. In one embodiment, the filaments have unequal lengths, while in another arrangement, filaments having unequal cross-sections are arranged in a substantially homogeneous mass. In yet another embodiment, each of the filaments has periodic notches along the length thereof.
REFERENCES:
patent: 2351290 (1944-06-01), Rippl et al.
patent: 3822109 (1974-07-01), Shaffer
patent: 3838185 (1974-09-01), Maringer et al.
patent: 3889347 (1975-06-01), Villani
patent: 3895902 (1975-07-01), Broadt et al.
patent: 3896203 (1975-07-01), Maringer et al.
Coleman Edward J.
Dority Jr. Carroll B.
GTE Products Corporation
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