Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Patent
1997-10-20
1999-03-02
Hepperle, Stephen M.
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
137508, 137510, 13761414, G05D 1602
Patent
active
058758151
ABSTRACT:
A combination pressure regulator/drain check valve comprising a housing having an inlet, an outlet and a flowpath therebetween, the flowpath at least partially defined by a reciprocable plunger. One end of the plunger closest the inlet approaches a pressure regulator seat while the opposite end closest the outlet is engageable with a drain check valve seat. The plunger is normally biased toward the drain check seat.
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Nelson Irrigation Corporation brochure, Drain Check Valve (May, 1995).
Rain Bird brochure, Pop-up Spray Sprinklers 1800 Series, undated.
Sesser George
Ungerecht Cliff P.
Farid Ramyar
Hepperle Stephen M.
Nelson Irrigation Corporation
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