Appeal No. 95-4113
Application No. 08/124,334
APPENDIX
1. A process of bonding plastic webs comprising:
a) passing a plurality of superposed webs over a
surface of a rotating metal drum while maintaining edge portions
of the webs outwardly of and projecting laterally from an edge of
the surface;
b) impinging a thin, highly intense flame on the drum
and edge portions by directing it upwardly at an acute angle
against the drum and the edge portions to directly heat one of
the edge portions while connectively heating another edge portion
shielded from the flame by the one edge portion; and
c) continuing to heat the edge portions until they
are fused.
21. A machine for fusing superposed and juxtaposed layers
of plastic together comprising:
a) a rotatable drum including a cylindrical web
engagement surface extending from one side edge toward a remote
side of the drum, a section of the surface forming a segment of a
web path of travel;
b) supply and output rolls positioned along the path
of travel respectively upstream and downstream from the drum;
c) means to tension a web section engaging said
surface and feed the web section at a speed equal to the surface
speed of the surface;
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