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FLOW CONTROL VALVE AND METHOD

  • US 20060099093A1
  • Filed: 11/08/2004
  • Published: 05/11/2006
  • Est. Priority Date: 11/08/2004
  • Status: Active Grant
First Claim
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1. A flow control valve, comprising:

  • a body having a fluid passageway therethrough and first and second openings each adapted for receiving or discharging fluid from the passageway;

    a piston slidably disposed in the passageway between the first and second openings of the body, the piston having a conduit portion that defines a bore therethrough for conducting fluid through a portion of the passageway, the bore having a reduced flow area; and

    a plug carried within the body and equipped with one or more annular seals for sealably engaging the reduced flow area of piston bore so as to close the bore upon translatory movement of one of the piston, the plug, and combinations thereof.

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