Photoflash lamp

Details Photoflash lamp Photoflash lamp

1976-04-05

1977-11-22

Dority, Jr., Carroll B.

Combustion

Projector and igniter for liquid or gelled fuel slug or rod,...

F21K 502

Patent

active

040593886

ABSTRACT:
A high-voltage type photoflash lamp having an ignition structure comprising a mass of primer material bridging a pair of lead-in wires, one of which is enclosed in an insulating sleeve. The lamp contains a quantity of shredded metallic combustible and an amount of oxygen in excess of that needed to completely burn the combustible so as to burn back the unsleeved lead-in wire during flashing. The primer material comprises a mixture of combustible metal powder, one or more metal oxides and a binding agent and is free of oxidizer salts.

REFERENCES:
patent: 2305561 (1942-12-01), Sylvester
patent: 2315099 (1943-03-01), Van Liempt
patent: 3312085 (1967-04-01), Schilling et al.
patent: 3823994 (1974-07-01), De Graaf et al.
patent: 3873260 (1975-03-01), Cote
patent: 3972673 (1976-08-01), Schupp

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