Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Keijo Hellgren0
Date of Patent
March 31, 2009
0Patent Application Number
105137070
Date Filed
April 4, 2003
0Patent Primary Examiner
Patent abstract
The present invention relates to a method and a device for expansion forming of an article. According to at least one aspect of the invention, an expansion forming tool is pressure-compensated from two sides, pressure differences on each side being equalized by means of a pressure transmitter, which is applicable to the tool.
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