Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 4, 2015
0Patent Application Number
139775750
Date Filed
January 7, 2011
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention relates to a method and apparatus for forming overlaps by welding a main sheet 2 and an additional sheet 5. The welding takes place by heating the contact area, which is made of a thermoplastic material, to a melting temperature, and it is based on performing differentiated heating on each of the outer surfaces 4,7 of the sheets 2,5.
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