Thermally responsive valve

Details Thermally responsive valve Thermally responsive valve

1978-07-20

1980-01-08

O'Dea, William F.

Automatic temperature and humidity regulation

Snap-acting

Including a permanent magnet

1376372, 137882, 236101C, G05D 2310

Patent

active

041824857

ABSTRACT:
A thermally responsive valve device comprises a body member having an inlet port and two outlet ports, a first passage connecting the inlet port and one of the outlet ports, a second passage communicating with the other of the outlet ports, a first valve seat positioned in the first passage, a first valve member movable into and out of engagement with the valve seat, a penetrating passage being provided through the first valve member and connecting the second passage and the inlet port, a second valve seat formed on the first valve member, a second valve member movable into and out of engagement with the second valve seat, first and second bimetal disks movable in response to variations in temperature. The first and second bimetal disks operating the first and second valve members to close and open the first passage and the penetrating passage respectively.

REFERENCES:
patent: 1063334 (1913-06-01), Donnelly
patent: 1360431 (1920-11-01), Molas
patent: 4076172 (1978-02-01), Inada et al.
patent: 4117976 (1978-10-01), Doherty, Jr.
patent: 4140275 (1979-02-01), Inada

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