Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Monte Russell0
Jonathan A. Babb0
Russell J. Steel0
Scott M. Packer0
Date of Patent
January 26, 2010
0Patent Application Number
112448240
Date Filed
October 5, 2005
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A mandrel that provides a counter-force to the pressure exerted on the outside of a pipe or other arcuate surface by a friction stir welding tool, wherein the mandrel is expandable through the use of a wedge, and wherein the mandrel enables multiple friction stir welding heads to simultaneously perform welding on the arcuate surface.
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