Heat sealing machine and process for heat sealing plastic film e

Details Heat sealing machine and process for heat sealing plastic film e Heat sealing machine and process for heat sealing plastic film e

1982-03-15

1984-04-10

Dawson, Robert A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

53479, 150 52B, 150 52R, 1563084, 156499, 156507, 1565839, 219243, 228 59, B32B 3120

Patent

active

044419538

ABSTRACT:
A heat sealing machine for sealing polyester sheets is disclosed, wherein edges of two polyester sheets are heat sealed together by being exposed to a nickel-chrome heating ribbon. The machine includes movable clamping bars for clamping polyester sheets to a work surface in a position to be heat sealed, and also includes a movable shield for shielding the freshly sealed plastic sheet from a heating element, as well as for providing an alignment guide for the next plastic sheet to be heat sealed on the machine, which cooperates with the clamping bar.

REFERENCES:
patent: 3413175 (1968-11-01), Rochla
patent: 3866648 (1975-02-01), Anderson

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