Pneumatically operated thermostat construction and method of mak

Details Pneumatically operated thermostat construction and method of mak Pneumatically operated thermostat construction and method of mak

1979-07-02

1980-12-30

Tapolcai, Jr., William E.

Automatic temperature and humidity regulation

Motors

Fluid-operated

236101E, G05D 2308

Patent

active

042418720

ABSTRACT:
A thermostat construction having a valve unit for directing a pneumatic signal to a pneumatically operated control device in relation to the force differential between the temperature sensed by the temperature sensing unit thereof and the temperature setting of a temperature setting unit thereof, the construction having a lever pivotally mounted thereto and being operatively interconnected to the valve unit at a first portion of the lever and to the temperature setting unit and the temperature sensing unit at a second portion of the lever by a post-like member. The post-like member has a pivot section thereof pivotally interconnected to the lever at the second portion thereof to operatively interconnect the temperature setting unit and the temperature sensing unit to the second portion of the lever to compensate for any misalignment between the operating parts. The temperature setting unit comprises a bimetal member and the post-like member has a link pivotally mounted thereto and provided with a pin that bears against the bimetal member to pivotally interconnect the bimetal member to the link and, thus, to the post-like member.

REFERENCES:
patent: 1933318 (1933-10-01), Doen
patent: 2280345 (1942-04-01), Nickells
patent: 2979068 (1961-04-01), Griswold et al.
patent: 3100079 (1963-08-01), Stucka
patent: 3580502 (1971-05-01), Duchek
patent: 3757639 (1973-09-01), Baum et al.
patent: 3809314 (1974-05-01), Engelke et al.
patent: 3831841 (1974-08-01), Franz
patent: 4005821 (1977-02-01), Slavin et al.
patent: 4007873 (1977-02-01), Duchek

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