Device for sealing plastics films

Details Device for sealing plastics films Device for sealing plastics films

1996-06-12

1999-02-02

Sells, James

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With bending, folding, winding, or wrapping means

156537, 1565831, 53562, 493209, 493470, B30B 1534

Patent

active

058659412

ABSTRACT:
A device for sealing plastics films, particularly in batch packages (10) comprises a sealing jaw (32) and a sealing surface (33) thereon. In order to avoid the adhesion of residues of the film on the sealing jaw (32) or its sealing surface (34) during sealing of sealable plastics film in packaging technology, the sealing jaw (32) or sealing surface (33) is protected by a cover comprising a polytetrafluoroethylene (sold under the trademark TEFLON) strip (34). This TEFLON strip is so disposed and designed that it may be moved on from time to time relative to the sealing jaw (32) or sealing surface (33), so that unused areas of the TEFLON strip (34) pass into the sealing position to the required extent.

REFERENCES:
patent: 4313781 (1982-02-01), Rovigo
patent: 4954206 (1990-09-01), Voss
patent: 5296075 (1994-03-01), Hardigg et al.
patent: 5322586 (1994-06-01), McLean
Japanese 4-339737, Published Apr. 14, 1993, vol. 17, No. 191--Abstract.

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