Combustion – Illuminating flash device – e.g. – photographic bulb – etc. – Fuel charge within sealed transparent casing – e.g. – bulb
Patent
1978-05-18
1981-03-24
Dority, Jr., Carroll B.
Combustion
Illuminating flash device, e.g., photographic bulb, etc.
Fuel charge within sealed transparent casing, e.g., bulb
362 15, 362 6, F21K 500
Patent
active
042577640
ABSTRACT:
A flash lamp array is disclosed having a plurality of flash lamps connected to sequencing circuitry on a circuit board. A plurality of solid-state thermally activated switches, having predetermined composition and physical characteristics and predetermined dimensions, are located externally of the lamps and affixed directly to one side of the circuit board. The sequencing circuitry includes printed circuit branches having a plurality of spaced-arm sections two of which overlay each of the switches and terminate proximate each of the switches. The exposed surface portion of the switches upon being irradiated by a flashed lamp converts to an electrically conductive state to insure a closed electrical circuit between the overlaying spaced-arm sections of the printed circuit.
REFERENCES:
patent: 3951582 (1976-04-01), Holub et al.
patent: 3969065 (1976-07-01), Smialek
patent: 3988647 (1976-10-01), Bolon et al.
patent: 3990832 (1976-11-01), Smialek et al.
patent: 3994664 (1976-11-01), Cusano
patent: 4080155 (1978-03-01), Sterling
Dority Jr. Carroll B.
Lombard R. S.
Westinghouse Electric Corp.
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