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US 2006/0049375 A1Published application
Boronized valve seal
AssigneeFisher Controls International LLC
InventorJames Gossett
Life of this patent
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Abstract
A control valve includes a first component, a second component, and a seal disposed there between. The first component defines a first surface that comprises a steel material, and the second component defines a second surface that comprises a steel material. The seal is disposed between the first and the second surfaces and comprises a boronized graphite material.
Claims24
A control valve comprising:
- a first component defining a first surface, the first surface component comprising a steel material;
- a second component defining a second surface, the second surface component comprising a steel material;
- and
- a seal disposed between the first and the second surfaces, the seal comprising a boronized graphite material.
1 more element
A seal for a control valve comprising:
- a generally cylindrical body constructed from a boronized graphite material, the body including,
- an upper surface and a lower surface oriented generally parallel to each other,
- cylindrical inner and cylindrical outer surfaces substantially concentric to each other and generally perpendicular to the upper and the lower surfaces,
- wherein the outer surface engages a first component and the inner surface slidingly engages a second component.
1 more element
A seal for a control valve comprising:
- a generally cylindrical body constructed from a boronized graphite material, the body including,
- an upper surface and a lower surface oriented generally parallel to each other,
- cylindrical inner and cylindrical outer surfaces substantially concentric to each other and generally perpendicular to the upper and the lower surfaces,
- wherein the upper surface engages a first component and the lower surface engages a second component.
1 more element
A method of sealing a valve comprising:
- providing a valve cage constructed from metal having an inlet, an outlet, and a pathway therebetween;
- providing a plug disposed in the valve cage, for opening and closing the pathway;
- and
- inserting at least one boronized graphite seal between the valve cage and the valve plug.
1 more element
Dependencies are inferred from the claim text.