Valve construction and method of making the same

Details Valve construction and method of making the same Valve construction and method of making the same

1978-03-20

1981-03-24

Tapolcai, Jr., William E.

Automatic temperature and humidity regulation

Cooling radiator

Bypass

251333, G05D 2312

Patent

active

042575532

ABSTRACT:
A valve construction having a valve seat and a movable valve member for opening and closing the valve seat and being operatively interconnected to a thermal power element carried by the valve construction, the valve member having an annular metallic part for engaging the valve seat to close the same and having an annular flexible elastomeric part for also engaging the valve seat upstream from the metallic part to augment the closing of the valve seat. The annular flexible elastomeric part is molded to the metallic part to be carried thereby.

REFERENCES:
patent: 1697516 (1929-01-01), Hele-Shaw et al.
patent: 2403028 (1946-07-01), Smith
patent: 2519541 (1950-08-01), Bryant
patent: 2650793 (1953-09-01), Clark, Jr. et al.
patent: 2873070 (1959-02-01), Drapeau
patent: 3248056 (1966-04-01), Obermaier
patent: 3332437 (1967-07-01), Hallen
patent: 3779512 (1970-12-01), Scaramucci
patent: 3858800 (1975-01-01), Wong

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