Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent
1998-07-16
1999-08-03
Hepperle, Stephen M.
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
137505, 13750525, 1375992, G05D 1602
Patent
active
059311827
ABSTRACT:
A pressure reducing valve assembly (10) includes an elongated tubular body (12), a pressure reducing valve (16) for reducing the fluid pressure discharged from the valve assembly, a pressure relief valve (18) for permitting fluid to discharge from the valve assembly when the device to which the valve assembly is coupled experiences an over-pressure condition, and a reset valve (20) for resetting the pressure reducing valve when the fluid pressure on the high pressure side of the valve assembly is reduced below a pre-selected reset level. The pressure reducing valve, pressure relief valve, and reset valve are all positioned within the tubular body and coaxially aligned along the longitudinal axis (14) of the body. The reset valve is positioned within the confines of the pressure reducing valve, and the pressure relief valve utilizes the same compression spring (90) as the pressure reducing valve.
REFERENCES:
patent: 1897432 (1933-02-01), Klotzman
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patent: 4194522 (1980-03-01), Lucas et al.
patent: 4432385 (1984-02-01), Legris
Craft Roger L.
Mascola James V.
Hepperle Stephen M.
Vektek, Inc.
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