Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Steven Keith Hostetter0
Lisa Marie Miller0
Date of Patent
February 14, 2012
0Patent Application Number
118509810
Date Filed
September 6, 2007
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A high temperature ball valve seal is disclosed that achieves Class IV shutoff for operating temperatures above 550 degrees F. The ball valve seal includes a C-seal positioned between a main seal and a seal housing to prevent fluid from flowing through a secondary flowpath when the ball valve is in a closed position.
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