Snap acting heat motor operated gas valve

Details Snap acting heat motor operated gas valve Snap acting heat motor operated gas valve

1982-03-25

1983-11-01

Tapolcai, William E.

Automatic temperature and humidity regulation

Snap-acting

Including a permanent magnet

236 68B, 236101E, 251 11, G05D 2310

Patent

active

044126506

ABSTRACT:
A snap acting heat motor operated gas valve having a valve member carried by a spring blade that is secured to one end of an electrically heated control bimetal strip. Magnetic means associated with the spring blade normally bias the valve member to a closed position to permit opening of the valve member upon a predetermined heating of the control bimetal member and to effect a snap action opening and closing of the valve member. An ambient temperature compensating bimetal member has a cantilever portion in spaced relation to the control bimetal strip and acting on the spring blade to offset the effects of ambient temperature changes upon the control bimetal member.

REFERENCES:
patent: 1885053 (1932-10-01), Slough
patent: 2628296 (1953-02-01), Dillman
patent: 2685412 (1954-08-01), Schell
patent: 3227370 (1966-01-01), Houser
patent: 3229956 (1966-01-01), White
patent: 3366140 (1968-01-01), Dunn
patent: 3442483 (1969-05-01), Schwartz
patent: 3591138 (1971-07-01), Wolfe
patent: 3876137 (1975-04-01), Kelly et al.
patent: 3896857 (1975-07-01), Turner et al.
patent: 4053136 (1977-10-01), Perl
patent: 4067539 (1978-01-01), Perl
patent: 4102496 (1978-07-01), Perl

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