Electrically-controlled damper

Details Electrically-controlled damper Electrically-controlled damper

1980-05-12

1981-07-07

Tapolcai, Jr., William E.

Automatic temperature and humidity regulation

Ventilator type

236 91E, 165 22, F24F 706

Patent

active

042770190

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: 2269036 (1942-01-01), Nessell
patent: 2274614 (1942-02-01), Nessell
patent: 2474048 (1949-06-01), Greenlee
patent: 3150319 (1964-11-01), Nelson
patent: 3154247 (1964-10-01), Carlson
patent: 3568760 (1971-03-01), Hogel

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