Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
James G. Schroth0
Richard H. Hammar0
Date of Patent
January 9, 2007
0Patent Application Number
109604840
Date Filed
October 7, 2004
0Patent Primary Examiner
Patent abstract
A hot forming tool is heated with multiple electrical resistance cartridge heaters. The heaters are located in the body of the tool so as to maintain the entire forming surface within a predetermined temperature range. Numerical thermal and optimization analyses direct the placement of the heaters so that when each heating element is simultaneously powered on for an identical fraction of the time, an acceptable temperature distribution will be produced within the tool at the tool operating temperature.
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