Low noise blower clutch

Details Low noise blower clutch Low noise blower clutch

1976-05-03

1978-05-23

Stephan, Steven L.

Optics: image projectors

Temperature control

Blower

64 30E, 192 56C, G03B 2118, F16D 702, F16D 2300

Patent

active

040907856

ABSTRACT:
Disclosed is a blower assembly for use in dispersing heat from an image projector with minimum air flow noise by interposing a constant torque clutch formed of a dual wound spring between the blower and a motor output drive to permit the rate of rotation of the blower to vary in response to variations in air weight due to changes in temperature, atmospheric pressure, and moisture content.

REFERENCES:
patent: 2626029 (1953-01-01), Gutterman
patent: 3075691 (1963-01-01), Kelley
patent: 3280699 (1966-10-01), Badalich

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