Electrothermally operated valve

Details Electrothermally operated valve Electrothermally operated valve

1977-05-24

1979-03-06

Schwadron, Martin P.

Fluid handling

Systems

Multi-way valve unit

251 11, 251 75, F16K 3102, F16K 3104, F03G 706

Patent

active

041425537

ABSTRACT:
An electrothermally operated valve which comprises a housing provided thereon with first and second ports and with a hermetic chamber in communication with the respective ports, a bimetallic element having a stationary end secured to an inner wall of the housing and a movable end, a cut-off valve including a valve body fixed on the movable end of the bimetallic element to co-operate with one of the first and second ports, and a heating coil coupled with the bimetallic element and adapted to be connected with a source of electricity. When the bimetallic element is heated upon energization of the heating coil, deflection of the bimetallic element is assisted by snap action to open the cut-off valve so as to communicate the first and second ports to each other through the hermetic chamber.

REFERENCES:
patent: 2266537 (1941-12-01), Elmer
patent: 2528756 (1950-11-01), Kaser
patent: 3327946 (1967-06-01), Benson
patent: 3521138 (1970-07-01), Enemark et al.
patent: 4053136 (1977-10-01), Perl
patent: 4067539 (1978-01-01), Perl

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