Automatic temperature and humidity regulation – Cooling radiator – Bypass
Patent
1982-11-10
1984-06-12
Tapolcai, William E.
Automatic temperature and humidity regulation
Cooling radiator
Bypass
236100, 236DIG2, F01P 702
Patent
active
044536682
ABSTRACT:
A fail-safe thermostatically operated valve includes a temperature-responsive actuator for moving a valve element between a retracted position and an extended position. The valve includes a first cylindrical member and a second cylindrical member which are releasably connected to one another by a temperature-responsive release device which is responsive to a second predetermined temperature above the normal operating temperature of the valve. A spring arrangement provides return capability for the valve element and overtravel capability for the valve in the normal temperature operating range, and biasing force to move the valve element from the retracted to the extended position when the temperature-responsive release device operates. In one embodiment, the temperature-responsive release device includes a miniature wax-filled actuator in engagement with a mechanical linkage. In an alternate embodiment, the temperature-responsive release device comprises a heat fusible material.
REFERENCES:
patent: 2830767 (1958-04-01), Herbenar
patent: 2842317 (1958-07-01), Wood
patent: 3045918 (1962-07-01), Woods
patent: 3128043 (1964-04-01), Feinberg
patent: 3498537 (1970-03-01), Wong
patent: 3776457 (1973-12-01), Cardi
patent: 4245782 (1981-01-01), Brown
patent: 4361167 (1982-11-01), Harasewych
Caltherm Corporation
Tapolcai William E.
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