Valves with metering sleeves

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United States of America Patent

PATENT NO 9303660
APP PUB NO 20150275933A1
SERIAL NO

14224674

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A valve includes a housing having an inlet and an outlet. A spool is fixed within the housing and defines a flow window therethrough for fluid communication between the inlet and the outlet. A piston is slidingly engaged in a piston compartment of the spool. A sleeve is slidingly engaged with the spool on an outer surface of the spool. The piston and sleeve are operatively connected for common motion along a sliding axis relative to the spool and housing between a first position in which the sleeve occludes the flow window to inhibit flow from the inlet to the outlet, and a second position in which the sleeve unoccludes the flow window to allow flow from the inlet to the outlet.

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First Claim

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Patent Owner(s)

  • HAMILTON SUNDSTRAND CORPORATION

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gradischer, Glenn Canton, US 14 38
Marocchini, Francis P Somers, US 61 154

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