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US Patent 10145594 Expansion valve

Patent 10145594 was granted and assigned to Dunan Microstaq on December, 2018 by the United States Patent and Trademark Office.

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Patent attributes

Patent Applicant

Dunan Microstaq

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Current Assignee

Dunan Microstaq

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Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Gengxun K. Gurley0

Parthiban Arunasalam0

Joe A. Ojeda0

Chen Yang0

E. Nelson Fuller0

Jennifer O'Keefe0

Date of Patent

December 4, 2018

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Patent Application Number

153997920

Date Filed

January 6, 2017

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Patent Citations Received

US Patent 10760836 Expansion valve

Patent Primary Examiner

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Patent abstract

A two-stage proportional control valve configured for use in a fluid system includes a valve body having a longitudinally extending valve body bore formed therethrough. A first stage microvalve is mounted within the valve body bore, and a second stage spool assembly is mounted within the valve body bore downstream of the microvalve. The second stage spool assembly includes a sleeve and a spool slidably mounted within the sleeve.

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