Heat sealing apparatus

Details Heat sealing apparatus Heat sealing apparatus

1983-07-01

1985-03-12

Wityshyn, Michael

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With separate heating means for work

156544, 156574, 156579, B32B 3126, B44C 708

Patent

active

045043523

ABSTRACT:
A heat sealing or heat welding apparatus for sealing lapped joints in laid up roof structures having an interchangeable drive for driving either or both of a pair of laterally spaced drive wheels and in which a heating element is selectively movable to plural operative positions including positions in alignment with the drive wheels whereby drive wheels perform the dual function of a traction drive and a pressure roll, and the drive wheels are able to traverse a path of travel coincident with that of the heating element during heat sealing of such lapped joints by the apparatus. The interchangeable drive and multiple operative positions of the heating element permit the apparatus to move forwardly for traverse of the lapped joint in either of the opposite directions of travel therealong.

REFERENCES:
patent: 4087309 (1978-05-01), Lang
patent: 4204904 (1980-05-01), Tabor
patent: 4239581 (1980-12-01), Lang

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