Apparatus and method for sealing and cutting thermoplastic strap

Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With separate heating means for work

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Details

53399, 53582, 100 2, 100 33PB, 156157, 156217, 156268, 1563084, 1563099, 156468, 156502, 156510, 219243, B32B 3100

Patent

active

045043531

ABSTRACT:
An apparatus for heat sealing together layers of strap of thermoplastics material, wherein at least one thin flat electrical heating element is supported under tension and between the layers of strap and the layers of strap are pressed together with a fusing pressure by at least one resilient pressure pad. The heating element, a support for the heating element and the resilient pressure pad form a heating and fusing assembly which is moved in unison relative to the layers of strap so that in use, the heating element moves between the two layers of strap generally in a longitudinal direction thereof.

REFERENCES:
patent: 3168617 (1965-02-01), Richter
patent: 3368323 (1968-02-01), Wood
patent: 3397105 (1968-08-01), Takami
patent: 3948720 (1976-04-01), Reil
patent: 4288270 (1981-09-01), Mossell et al.

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