Control valve assembly

Details Control valve assembly Control valve assembly

1980-04-09

1981-09-08

Topolcai, Jr., William E.

Automatic temperature and humidity regulation

Thermostatic

In fluid controlled

236 345, 236100, 251337, G05D 2312

Patent

active

042880335

ABSTRACT:
A control valve assembly incorporates direct metal-to-metal engagement between a casing of a temperature-responsive valve actuator and a piston guide to promote ease and accuracy of calibration. In addition, a substantially frictionless override feature is incorporated in the assembly to effect pressure relief and to accommodate thermal excursion of the valve actuator beyond the travel required to effect the desired valve movement.

REFERENCES:
patent: 2396138 (1946-03-01), Vernet
patent: 2795381 (1957-06-01), Eskin
patent: 2830767 (1958-04-01), Herbenar
patent: 2837285 (1958-06-01), Urban
patent: 2881616 (1959-04-01), Clifford et al.
patent: 2889113 (1959-06-01), Kozel et al.
patent: 3454220 (1969-07-01), Bentz et al.

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