Apparatus and method for welding overlapping water-proof...

Details Apparatus and method for welding overlapping water-proof... Apparatus and method for welding overlapping water-proof...

2006-08-22

2006-08-22

Purvis, Sue A. (Department: 1734)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S082000, C156S391000, C156S497000, C156S499000, C156S543000, C156S574000

Reexamination Certificate

active

07094298

ABSTRACT:
Apparatus for heat welding together thermoplastic membranes mounted on a surface includes a frame, a support member connected to the frame, a nozzle mounted on the support member to receive heated air, weld wheels mounted on the support member adjacent to, and immediately following, the nozzle for pushing a heated portion of an upper membrane toward a lower membrane to effect a weld, wherein the support member is adapted to be fixed to the frame member in a first position proximate a first side of the frame for welding the two membranes together, is releasable from the first position, is movable to a second position nearer a second side of the frame, and adapted to be releasably fixed to the frame at the second position for welding a membrane to an underlying edge piece mounted on a free edge of the surface.

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