Dual-weld roof membrane welding apparatus and method of using sa

Details Dual-weld roof membrane welding apparatus and method of using sa Dual-weld roof membrane welding apparatus and method of using sa

1997-02-20

1999-08-10

Engel, James

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156497, 156499, 156544, 156574, B32B 3100

Patent

active

059353570

ABSTRACT:
A dual-weld heat welding apparatus capable of simultaneously welding a first membrane and an overlapping second membrane on opposite sides of a roof membrane fastening apparatus fastened through the first membrane and located under the overlapping second membrane The heat welding apparatus includes a movably supported chassis, a hot air welder attached to the chassis including a nozzle having an outlet including at least one opening for simultaneously applying a weld on opposite sides of the roof membrane fastener to weld the overlapping second membrane and the first membrane, and at least one weld wheel rotatably attached to the chassis and located rearward of the nozzle relative to the direction of movement of the apparatus and capable of simultaneously applying pressure to the weld on each side of the roof membrane fastener.

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"Leister Welding Tools for Thermoplastics", Oct. 3, 1994.

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