Apparatus for sealing film webs of a thermoplastic synthetic mat

Details Apparatus for sealing film webs of a thermoplastic synthetic mat Apparatus for sealing film webs of a thermoplastic synthetic mat

1993-04-20

1995-11-21

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With bond interfering means

156323, 156553, B32B 3120

Patent

active

054683335

ABSTRACT:
An apparatus for sealing superposed film webs or flat lying tubular webs of a thermoplastic synthetic material, including sealing bars heatable by heating appliances, which are displaceable towards each other and away from each other and over whose front surfaces there can be spread a separating sheet of a material not sticking to the synthetic material.

REFERENCES:
patent: 2767769 (1956-10-01), Hasselquist
patent: 3196068 (1965-07-01), Schoder
patent: 3379595 (1968-04-01), Bracey
patent: 3567550 (1971-03-01), Kannegiessei
patent: 3721602 (1973-03-01), Bosse
patent: 4104101 (1978-08-01), Garabedian
patent: 4674266 (1987-06-01), Araki
patent: 4954206 (1990-09-01), Voss

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