Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1989-06-27
1990-07-17
Rivell, John
Fluid handling
Line condition change responsive valves
Direct response valves
1375563, 251 83, 251297, 2513353, F16K 1706
Patent
active
049415042
ABSTRACT:
A manual fluid-control valve has a housing defining a chamber formed with a seat and with a fluid inlet and a fluid outlet opening into the chamber at opposite sides of the seat and a valve body in the housing having an end face and displaceable axially forward into a closed position with the end face engaging the seat and blocking fluid flow through the chamber between the inlet and outlet and an open position with the end face spaced-axially backward from the seat and permitting fluid flow through the chamber between the inlet and outlet. An operating element is axially displaceable in the housing adjacent the valve body but out of direct contact with the valve body and a spring is braced between the operating element and the valve body and constitutes the only axial-force- transmitting link between the body and the element. An operating mechanism is connected to the operating element for axially displacing same and thereby also displacing the valve body between its positions via the spring.
REFERENCES:
patent: 1146723 (1915-07-01), Losh
patent: 1541757 (1925-06-01), Allen
patent: 1641892 (1927-09-01), Lane
patent: 3420493 (1969-01-01), Kraft
patent: 3589671 (1971-06-01), Strache
patent: 3982561 (1976-09-01), Harthun
patent: 4364541 (1982-12-01), Chabat-Courrede et al.
Dubno Herbert
Rivell John
Wilford Andrew M.
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