Electrically-controlled damper

Details Electrically-controlled damper Electrically-controlled damper

1981-07-01

1983-05-17

Tapolcai, William E.

Automatic temperature and humidity regulation

Ventilator type

137523, 251 68, 236 84, F24F 706

Patent

active

043836410

ABSTRACT:
A novel fluid-flow control damper is disclosed. The damper comprises a freely pivotable closure situated in a fluid-flow conduit, such as an air duct. The closure is maintained in a closed position by a simple latching means, and may be maintained in an open condition by means of fluid flow through the conduit. Several of these dampers may be used in combination with a single fluid temperature control device, resulting in a simple, low-cost multizone heating or cooling system.

REFERENCES:
patent: 1270389 (1918-06-01), Eitapenc
patent: 2537099 (1951-01-01), Smith
patent: 3329341 (1967-07-01), Jones
patent: 3568760 (1971-03-01), Hogel
patent: 4022421 (1977-05-01), Carlin
patent: 4084744 (1978-04-01), Wilson, Jr.
patent: 4203566 (1980-05-01), Lord

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