Fluid handling – Line condition change responsive valves – Direct response valves
Patent
1995-10-16
1997-09-02
Ferensic, Denise L.
Fluid handling
Line condition change responsive valves
Direct response valves
137592, F16K 1500
Patent
active
056621400
ABSTRACT:
A valve device installed within the interior of a water receiving tank. A cylindrically shaped housing has a pair of openings at either end and is substantially contained within the tank. A valve rod is movably mounted within the housing. A cap is attached to one end of the valve rod and engages an innermost end of the housing to form a water tight seal. A spring is mounted within the housing to bias the valve rod and cap to a closed position. A flange is secured to the other end of the housing and is mounted to the external surface of the tank. The flange is adapted to connect to a conventional water conduit to facilitate communication of water from a hydrant to the tank. When water, under sufficient pressure from a water source, enters the valve device, the cap and valve rod are urged inward opening the valve to allow water to fill the tank. When the pressure of the water source falls below a certain level, the valve device closes providing a water tight seal.
REFERENCES:
patent: 272684 (1883-02-01), Hall
patent: 737444 (1903-08-01), Moore
patent: 1013158 (1912-01-01), Hahn
patent: 1075022 (1913-10-01), Cooper
patent: 1349515 (1920-08-01), Lombard
patent: 3447565 (1969-06-01), Davis
patent: 4388940 (1983-06-01), Powell
patent: 4482017 (1984-11-01), Morris
patent: 4674530 (1987-06-01), Bickford
patent: 5172720 (1992-12-01), Richards
Farid Ramyar M.
Ferensic Denise L.
Fireman's Friend Engineering, Inc.
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