Crossover switch

Details Crossover switch Crossover switch

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.

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