Automatic temperature and humidity regulation – Ventilator type
Patent
1977-09-12
1978-10-31
Krizmanich, George H.
Automatic temperature and humidity regulation
Ventilator type
98 43C, 98 72, F24F 1102
Patent
active
041230019
ABSTRACT:
An automatic temperature responsive damper assembly for use within the conduit of a ventilating system designed to exhaust the air in a confined space to the atmosphere whereby the conduit may be opened in order to minimize excess heat build-up in the confined space and closed when it is desired to prevent heat loss from the confined space. The damper assembly includes at least one vane carried within the conduit, preferably two, with mounting means operatively associated with the conduit for pivotally securing the at least one vane thereto, so as to be movable between a generally open position and a generally closed position in the conduit to permit the passage of air therethrough in its open position. Camming means is secured to the at least one vane carried by the mounting means and includes a camming surface thereon with a temperature responsive drive assembly mounted to detect temperature changes in the conduit and adapted to actuate in response to temperature changes within a predetermined range. Transmission means couples the drive assembly to the camming means for communicating movement of the drive assembly to the camming means, such that the at least one vane is moved to varying positions in response to temperature changes in the ventilating conduit. Biasing means is provided for urging the camming means into contact with the transmission means in a direction opposite to the forces applied by the drive assembly, so as to obtain an automatic closing of the at least one vane irrespective of the mounted position of the conduit.
REFERENCES:
patent: 1737054 (1929-11-01), McQuistan
patent: 1888428 (1932-11-01), Martin
patent: 2403291 (1946-07-01), Kurth
patent: 2552735 (1951-05-01), Rawson
patent: 3777974 (1973-12-01), Sparks
patent: 3921900 (1975-11-01), Cole
patent: 3976245 (1976-08-01), Cole
patent: 4061266 (1977-12-01), Ley et al.
Krizmanich George H.
Suroff Leonard W.
Suroff Leonard W.
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