Percussively-ignitable flashlamp assembly and selective firing m

Details Percussively-ignitable flashlamp assembly and selective firing m Percussively-ignitable flashlamp assembly and selective firing m

1977-03-17

1979-05-01

Yuen, Henry C.

Combustion

Illuminating flash device, e.g., photographic bulb, etc.

Fuel charge within sealed transparent casing, e.g., bulb

431361, 362 11, F21K 502

Patent

active

041521056

ABSTRACT:
An improved flashlamp assembly which utilizes a plurality of percussively-ignitable flashlamps disposed on an elongated support member. Firing of the flashlamps is accomplished using a spring-loaded ratchet, a movable carriage, and a striking mechanism, e.g. helical torsion spring, positioned on the movable carriage and in engagement with the ratchet. The spring engages and fires each of the lamps in response to the movement of the ratchet and carriage within the support member. The improvement comprises a movable retention means for fixedly retaining the assembly's carriage prior to the selective firing of the flashlamps. An improved selective firing mechanism is also disclosed.

REFERENCES:
patent: 3735111 (1973-05-01), Shaffer
patent: 3753390 (1973-08-01), Hough et al.
patent: 3765079 (1973-10-01), Pfeffede et al.
patent: 3980421 (1976-09-01), Heeman et al.
patent: 4070145 (1978-01-01), Hall, Jr. et al.
patent: 4076488 (1978-02-01), Hall, Jr.

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