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Valve and stem sealing assembly

  • US RE47,010 E1
  • Filed: 12/10/2015
  • Issued: 08/28/2018
  • Est. Priority Date: 10/27/2011
  • Status: Active Grant
First Claim
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1. A valve comprising:

  • a. a body having a first port and a second port with a passage configured to flow a media extending between said first port and said second port, wherein said body has a flow-element positioned between said first port and said second port;

    b. a stem secured to said flow-element and an actuator, wherein said stem extends through a stem port located on said body and is configured to actuate said flow-element;

    c. a bonnet secured to said body; and

    ,d. a sealing assembly substantially adjacent to said stem and configured to fit within an annular space between said stem, said body, and said bonnet, said sealing assembly comprising;

    i. a primary seal having a cavity between its inner and outer circumference, wherein said cavity comprises at least two sidewalls that are substantially orthogonal to a bottom wall;

    ii. a primary shaft insert configured to fit within said cavity of said primary seal;

    iii. a sealing element located above said primary seal;

    iv. a bottom gasket;

    v. a spacer seated on said sealing element; and

    ,vi. a force transmitting member configured to transfer an axial load to said primary shaft insert, wherein said primary shaft insert is configured to transfer said axial load radially to said primary seal creating at least one seal with the walls of said annular space.

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