Thermally-powered control mechanism
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United States of America Patent
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-
Apr 9, 1985
Grant Date -
N/A
app pub date -
Feb 1, 1984
filing date -
Feb 1, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A room air diffuser control mechanism is provided which is operated by two thermally powered thermostatic actuator elements, one reacting to the room air temperature, and the other reacting to the supply air temperature. When the supply air temperature is cool (e.g., less than 68.degree. F.), the supply air element is retracted and its linkage system is rendered inoperative. The room air element, through its linkage system, reacts to control the room temperature by varying the area of an air diffusion discharge opening. When the supply air temperature is warm (e.g., greater than 78.degree. F.), the supply air element reacts to disengage the room air element linkage system, and to move the air diffusion discharge opening to an adjustable, predetermined position. In this mode, the room air element does not affect the discharge opening regardless of the temperature of the room air.
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