Apparatus for heat-sealing thermoplastic sheeting

Details Apparatus for heat-sealing thermoplastic sheeting Apparatus for heat-sealing thermoplastic sheeting

1992-09-22

1994-06-28

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Presses or press platen structures, per se

1565839, 15658391, B30B 1522, B30B 1534

Patent

active

053243854

ABSTRACT:
An improved L-sealing apparatus providing an L-shaped sealing bed assembly mounted on four support rod and cylinder assemblies using a piston-and-cylinder driven bell crank operable upon closing of the sealing arm into adjacency with the sealing bed assembly to translatorily move the sealing bed assembly into substantially uniform and continuous contact and pressure with the heating wire arrangement of the sealing arm.

REFERENCES:
patent: 3496049 (1970-02-01), Anderson
patent: 3731054 (1973-05-01), Bair
patent: 3912575 (1975-10-01), Zelnick
patent: 4104108 (1978-08-01), Kishida et al.
patent: 4650535 (1987-03-01), Bennett et al.
patent: 5015325 (1991-05-01), Bennett et al.

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