Automatic temperature and humidity regulation – Ventilator type
Patent
1978-11-03
1981-06-16
Wayner, William E.
Automatic temperature and humidity regulation
Ventilator type
49 7, 98 1, 236101D, 137 73, F24F 700, E05F 1520
Patent
active
042732832
ABSTRACT:
There is provided a self-regulating air register which includes a housing, louvres in the housing for closing and opening a flow path for air, a crank arm connected to the louvres which can, upon rotation, adjust the degree of closure, a shaft extending through the housing means, and a bi-metallic element connected at one end to the shaft and to a control knob at the other end. The control knob is mounted on the housing and is capable of selective adjustment in terms of angle. The bi-metallic element is thus adapted to regulate the angular orientation of the shaft with respect to the housing means, with an additional adjustment by the control knob. A lever is mounted on the shaft and extends perpendicularly from it. In the lever is a slot in which part of the crank arm is captive. At least part of the slot includes a portion disposed such that when part of the crank arm is located in the portion, the crank arm is caused to rotate as the lever rotates. On the control knob is at least one projection which extends perpendicularly through the plane of rotation of the lever but is located to one side thereof, whereby rotation of the control knob in one sense can bring the projection into contact with the lever and thus retain the lever in a position for which the louvre means is in an extreme condition.
REFERENCES:
patent: 3312159 (1967-04-01), Shepherd
patent: 3836073 (1974-09-01), Evans et al.
patent: 4080978 (1978-03-01), McCaabe
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