Title: Humidity and temperature responsive device and method of making the same

Abstract: A humidity and temperature responsive device having a temperature sensor provided with a part that moves upon changes in sensed temperature and having a humidity sensor that is provided with a part that moves upon changes in sensed humidity. A tension spring interconnects the movable parts together so that the same act together to vary a bleed valve arrangement so that the output pressure of the device can be utilized to indicate enthalpy or operate control devices to select air with high or low enthalpy.

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Inventors: Lewis, Jay L. (Knoxville, TN, US)

Application Number: 553019
Filing Date: 1975-02-25
Publication_date: 1976-12-28
Assignee: Robertshaw Controls Company (Richmond, VA)
Primary Class(es): 236/44C 62/176.6, 73/335.02, 374/142
Other Classes:
US Patent Ref:

1504080	Aug, 1924	Roesch	236/44.
2059846	Nov, 1936	Bulger	236/44.
2106083	Jan, 1938	Chappell et al.	236/44.
2191630	Feb, 1940	Shutts	200/61.
2949513	Aug, 1960	Davidson	200/61.
3664580	May, 1972	Martin	236/87.
3730426	May, 1973	Braukmann	236/44.
3859616	Jan, 1975	Ladany	236/44.

Other Refs:
Primary Examiner: O'Dea, William F.
Assistant Examiner: Tapolcai, Jr., William E.
Attorney: Candor, Candor & Tassone