Fluid handling – Line condition change responsive valves – Pop valves
Patent
1992-12-21
1993-09-21
Hepperle, Stephen M.
Fluid handling
Line condition change responsive valves
Pop valves
251363, F16K 1706
Patent
active
052460304
ABSTRACT:
A safety or pressure relief valve which relieves excessive pressure in a storage reservoir in a compressed air system. The valve includes a lower valve body and an upper valve housing. A valve seat member is secured in the lower valve body. The valve seat member includes an annular dovetail groove for accommodating and retaining a fluorocarbon rubber O-ring seat. A valve disc and stem slidable within a stem guide member located in the upper valve housing. A compression spring for urging the valve disc against the fluorocarbon rubber O-ring seat to positively seal off the flow of air between an inlet and outlet port.
REFERENCES:
patent: 606867 (1898-07-01), Hoover
patent: 2874718 (1959-02-01), Kelly
patent: 4355657 (1982-10-01), Reip
patent: 4406302 (1983-09-01), Olesen
patent: 4474208 (1984-10-01), Looney
patent: 4790348 (1988-12-01), Gausman et al.
patent: 4799506 (1989-01-01), Taylor
patent: 5056548 (1991-10-01), Mills
patent: 5188150 (1993-02-01), Esplin
Hepperle Stephen M.
Sotak John B.
Westinghouse Air Brake Company
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