Method and device for joining sections of thermoplastic...

Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With bending – folding – winding – or wrapping means

Reexamination Certificate

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Details

C156S292000, C156S471000, C156S582000

Reexamination Certificate

active

06907912

ABSTRACT:
The invention relates to a method for joining a number of sections (7) of a thermoplastic continuous web material in order to form an expandable section block (2). Said block is built up by repeatedly carrying out sequences of steps of the method. The invention also relates to a device for forming said blocks at high speeds.

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U.S. Appl. No. 09/934,177; filed Aug. 21, 2001; In re: Hering et al.; entitledMethod and Apparatus for Joining Pieces of Thermoplastic Material to Form Cellular Blocks.

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