Fluid handling – Systems – With selective motion for plural valve actuator
Patent
1995-11-27
1996-11-12
Walton, George L.
Fluid handling
Systems
With selective motion for plural valve actuator
137607, 251 7, F16K 706, F16K 1114
Patent
active
055730370
ABSTRACT:
A valve cartridge is provided. The valve cartridge includes a cartridge retainer having a cartridge axis and a generally cylindrical sidewall having first and second openings and first and second pinch tubes disposed within the cartridge retainer. The pinch tubes respectively have tube axes substantially parallel to the cartridge axis and axial bores therethrough. The valve cartridge also includes first and second poppets disposed in the first and second openings and movable in a direction not parallel with the tube axes for engagement respectively with the pinch tubes, and an actuator rotatable about and movable along the cartridge axis and encircling the cartridge retainer. The actuator has an interior surface engaging the first and second poppets and having a cylindrical portion having an inside diameter which, when engaged with the poppets, holds the poppets against the pinch tubes for closing the bores, and an eccentric portion tapering outwardly from the cylindrical portion which, when engaged with the poppets, permits variations in the cross sectional areas of the axial bores to control the rates of flow through the pinch tubes.
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Cole George S.
Edwards Harry W.
George S. Cole & Associates, Incorporated
Walton George L.
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