B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
154/29.01
B29C 65/00 (2006.01) B23K 26/073 (2006.01) B29C 65/16 (2006.01) H01S 3/02 (2006.01)
Patent
CA 1091140
METHOD AND APPARATUS OF BONDING SUPERPOSED SHEETS OF POLYMERIC MATERIAL IN A LINEAR WELD ABSTRACT OF THE DISCLOSURE A cylindrical lens system is used to focus a laser beam into a line upon thermoplastic sheets in their area of contact thereby linearly welding the sheets together. By this method flattened thermoplastic tubing may be converted into bags with either straight or curved linear seals.
269367
Smart & Biggar
W.r. Grace & Co.,-Conn.
LandOfFree
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