Membrane welding apparatus including a visual seam marker

Details Membrane welding apparatus including a visual seam marker Membrane welding apparatus including a visual seam marker

B - Operations, Transporting

23

K

B23K 31/02 (2006.01) B29C 65/00 (2006.01) B29C 65/10 (2006.01) B29C 65/82 (2006.01) E04D 15/00 (2006.01) E04D 15/04 (2006.01)

Patent

CA 2380129

A roof membrane welding apparatus capable of applying a weld to a first membrane and an overlapping second membrane. The apparatus includes a movably supported chassis, a welder attached to the chassis for heating the top membrane to at least the vicant softening point 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, the weld wheel including a marker having an indicia thereon that is transferred to a top surface of the second membrane only where the first membrane and the second membrane have undergone a phase change during heating.

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