Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
April 19, 2011
Patent Application Number
11972978
Date Filed
January 11, 2008
Patent Primary Examiner
Patent abstract
A fluid control device comprises a valve body, a valve plug, a valve cage, and a sealing ring. At least a portion of the sealing ring is disposed within a gap between the valve plug and the valve cage to provide a seal therebetween when the valve plug is in the closed position. The sealing ring includes an L-shaped cross-section that provides an effective seal regardless of the port diameter of the fluid control device, and thus, reduces the number of types of seals required to be stored in inventory for various applications.
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