Dual function thermal valve

Details Dual function thermal valve Dual function thermal valve

1981-06-08

1983-04-05

Tapolcai, William E.

Automatic temperature and humidity regulation

Snap-acting

Including a permanent magnet

236 87, 236101C, G05D 2310

Patent

active

043789072

ABSTRACT:
An improved, dual function, thermal valve assembly has two passages and two valve mechanisms disposed in the passages, respectively. The assembly employs two thermally responsive actuating members which are actuatable to provide the dual functions in successive steps upon an increasing degree of temperature. The assembly is characterized by provision of a cavity to contain in isolation the thermally responsive actuating members from the passages to thereby avoid a tendency of thermal influence from the air flow passing through the passage.

REFERENCES:
patent: 4026464 (1977-05-01), Doherty, Jr.
patent: 4076172 (1978-02-01), Inada et al.
patent: 4117976 (1978-10-01), Doherty, Jr.
patent: 4133478 (1979-01-01), Place
patent: 4157158 (1979-06-01), Kitamura et al.
patent: 4182485 (1980-01-01), Kitamura

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