Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kelly Borden0
Trevor Fritz0
Date of Patent
January 9, 2018
Patent Application Number
13086875
Date Filed
April 14, 2011
Patent Citations Received
Patent Primary Examiner
Patent abstract
An all-elastomeric sealing element for a rotating control device includes a base portion, a conical portion and has a central pipe opening through both the base portion and the conical section. The conical section has an elastomeric core layer and an elastomeric surface sealing layer which encases the core layer. The surface sealing layer is softer than the core layer, as measured on a standard durometer scale.
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