Apparatus and methods for controlling fan operation

Details Apparatus and methods for controlling fan operation Apparatus and methods for controlling fan operation

1977-07-21

1979-01-30

Wayner, William E.

Automatic temperature and humidity regulation

Ventilator type

236 91G, 98 43R, F24F 706

Patent

active

041368223

ABSTRACT:
Apparatus and methods for controlling fan operation, wherein a temperature difference sensor senses inside and outside temperatures, and actuates switch devices so that fan operation is commenced when the interior temperature exceeds the exterior temperature by a predetermined amount. Fan operation may also be controlled in response to humidity, a humidistat actuating the fan when the humidity exceeds a predetermined level.

REFERENCES:
patent: 2362977 (1944-11-01), Crosthwait et al.
patent: 2601028 (1952-06-01), Kersten
patent: 3144991 (1964-08-01), Marchant
patent: 3751635 (1973-08-01), Niehaus
patent: 3998207 (1976-12-01), Watt

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