Combustion – Illuminating flash device – e.g. – photographic bulb – etc. – Fuel charge within sealed transparent casing – e.g. – bulb
Patent
1982-04-05
1984-07-10
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
044591020
ABSTRACT:
A multilamp photoflash array has a circuit board with a printed circuit thereon and a plurality of flashlamps connected to the printed circuit with a normally open (N/O) switch of electrically insulating material overlaying a portion of the printed circuit and a normally closed (N/C) switch of solid electrically conductive material overlaying the normally open (N/O) switch and portion of the printed circuit to provide a crossover switch. A process for fabricating a crossover switch includes affixing the printed circuit to the circuit board, depositing a normally open (N/O) switch over a portion thereof and attaching a normally closed (N/C) switch of solid electrically conductive material over the printed circuit portion and normally open (N/O) switch to provide a crossover switch.
REFERENCES:
patent: 4017728 (1977-04-01), Audesse et al.
patent: 4286307 (1981-08-01), Harvey et al.
patent: 4330821 (1982-05-01), Brower et al.
Buffton Thomas H.
Dority Jr. Carroll B.
GTE Products Corporation
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