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US 2014/0109996 A1Published application
Constant Flow Rate Pressure Regulator
AssigneeFluidmaster, Inc.
InventorsTuan LE, Jaime Berndt, Adam Sampson
Life of this patent
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Abstract
A flow valve that maintains a constant flow valve despite varying pressures at its inlet, comprising: (a) an elongated cage with alternating axially-extending pockets and ridges on its inner surface; and (b) an elongated generally conical shaped elastomeric sleeve received within the elongated cage; wherein the sleeve flexes outwardly at higher pressures, thereby decreasing the size of the flow channel between the sleeve and cage, thereby restricting flow to maintain constant flow valve despite varying inlet pressures.
Claims9
A pressure regulating flow valve, comprising:
- (a) an elongated cage comprising a generally tubular body with an open end and a closed end, the generally tubular body having inwardly curved wall sections forming axially-extending pockets on the inner surface of the generally tubular body;
- and
- (b) an elongated generally conical shaped elastomeric sleeve received within the elongated cage, the generally conical shaped elastomeric sleeve having a wide end and a narrow end, wherein the wide end of the elastomeric sleeve is supported at the open end of the elongated cage, and wherein flow is permitted between the narrow end of the elastomeric sleeve and the closed end of the elongated cage.
Dependencies are inferred from the claim text.