Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 11, 2007
Patent Application Number
11554153
Date Filed
October 30, 2006
Patent Primary Examiner
Patent abstract
A method is provided for forming a tube between a pair of dies. The tube is captured between a pair of dies having die surfaces constructed of an electrically non-conducting material defining a die cavity therein. The ends of the tube are sealed and electrical current is applied to the tube to induce electrical resistance heating of the tube. The interior of the tube is pressurized to expand the tube into the cavity to thereby form the heated tube.
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