Manufacturing container or tube from paper; or other manufacturi – With cutting – breaking – tearing – or abrading – Including application of heat
Reexamination Certificate
2008-05-06
2008-05-06
Harmon, Christopher (Department: 3721)
Manufacturing container or tube from paper; or other manufacturi
With cutting, breaking, tearing, or abrading
Including application of heat
C264S482000, C493S227000, C493S238000, C493S369000
Reexamination Certificate
active
07367931
ABSTRACT:
The present invention contemplates a machine and method for performing the laser sealing and laser cutting of flexible material into segments, such as a polymeric web in which the segments will ultimately be individual bags. The machine includes a generally cylindrical drum having openings on an exterior surface. A laser produces a laser beam that contacts the flexible material while the flexible material is being held on the drum. The drum is preferably comprised of drum sections that can be independently moved in the radial direction. The machine includes a cam system causing the drum sections to be sequentially moved in the radial direction. Typically, this radial movement is for the purpose of releasing the individual segments of the flexible material that have been cut by the laser.
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Barclay Ian J.
Kozlowski Mark F.
McManus Michael W.
Baker & Botts L.L.P.
Harmon Christopher
Pactiv Corporation
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