Manufacturing container or tube from paper; or other manufacturi – With cutting – breaking – tearing – or abrading – Including application of heat
Patent
1989-03-28
1990-08-07
Schmidt, Frederick R.
Manufacturing container or tube from paper; or other manufacturi
With cutting, breaking, tearing, or abrading
Including application of heat
156515, 156553, 1565837, 219243, 493194, 493209, B65B 6100
Patent
active
049464329
ABSTRACT:
The invention consists of a device for welding and perforating a thermoplastic film folded back on itself. The device consists of a support for supporting two electrically heated welding strips and a perforation device. The perforation device is movably supported between the welding strips. The support is transversely movable with respect to the film. The welding strips consists of a non-heating portion and a heating portion. The non-heating portion is at least equal in length to the heating portion.
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Soubrier Pierre
Susini Etienne
Baxter International Inc.
Flattery Paul C.
Lavinder Jack
Schaafsma Paul E.
Schmidt Frederick R.
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