Automatic temperature and humidity regulation – Ventilator type
Patent
1979-08-23
1981-01-06
Makay, Albert J.
Automatic temperature and humidity regulation
Ventilator type
98 32, 98 40VT, 236101D, 403359, F24F 1308
Patent
active
042431751
ABSTRACT:
An improved temperature regulated wall ventilator comprising a housing defining an air flow passageway therethrough, a plurality of louvers mounted in side by side relation in the housing passageway for pivotal movement about their longitudinal axes to open and close the air flow passageway, and temperature responsive helical spring control means located in the air flow passageway on an inner end portion of a stub shaft mounted on the housing. One end of the helical spring is attached to one of the louvers, and the other end of the spring is operatively attached to the stub shaft to prevent its relative rotation with respect thereto. The stub shaft is mounted in an opening of the housing wall, and, prior to installation of the ventilator in a wall opening, the stub shaft may be partially retracted from the housing wall and rotated to cause compression or contraction of the spring about its longitudinal axis, thereby varying the pressure of the spring on the louvers to establish a desired temperature at which the louvers are opened or closed.
REFERENCES:
patent: 2271733 (1942-02-01), Clark
patent: 2292082 (1942-08-01), Miller
patent: 3366333 (1968-01-01), Diehl
patent: 3436016 (1969-04-01), Edwards
patent: 3528606 (1970-09-01), Witten
patent: 3852514 (1974-12-01), Lauben
patent: 4124318 (1978-11-01), Sagady
patent: 4151952 (1979-05-01), Edwards
patent: 4175480 (1979-11-01), Beam, Jr. et al.
Joyce Harold
Makay Albert J.
Manning, Jr,. Wellington M.
Wilburn, Jr. Luke J.
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