Power supply system for an optical inspection apparatus

Details Power supply system for an optical inspection apparatus Power supply system for an optical inspection apparatus

1989-02-21

1990-03-13

Wong, Peter S.

Electricity: power supply or regulation systems

Input level responsive

323283, 323288, G05F 500

Patent

active

049085670

ABSTRACT:
The optical inspection apparatus consists of an explosion-proof light projector and a viewing periscope. In one embodiment, an external power source connects to an explosion-proof housing protectively enclosing a lamp. In another embodiment, the lamp, batteries, and a circuit are included within the explosion-proof housing, providing a fully portable, self-contained and explosion-proof light projector. A viewing periscope is provided for examination of meter tubes, tanks vessels and other enclosed machinery. An explosion-proof connector is also disclosed providing an explosion-proof and thermally resistant interface between a light source and a fiberoptic light guide. A timing circuit disclosed prolonging the operation time of the light projector on one charge of the battery.

REFERENCES:
patent: 4072890 (1978-02-01), Westbrook et al.
patent: 4230970 (1980-10-01), Potter et al.
patent: 4237405 (1980-12-01), Kellis
patent: 4274034 (1981-06-01), Conklin
patent: 4499525 (1985-02-01), Mallory
patent: 4717868 (1988-01-01), Peterson

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