Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With gas – vapor – or flame contact means for work
Reexamination Certificate
2007-12-05
2010-06-29
Sells, James (Department: 1791)
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With gas, vapor, or flame contact means for work
C156S499000, C156S555000
Reexamination Certificate
active
07743809
ABSTRACT:
A hot-air fabric welder for waterproofing tape is invented for selectively welding straight portions and arc portions. The hot-air fabric welder for waterproof tape is comprised of: a lower roller unit including a flat roller portion and a tapered roller portion mounted to the upper end of a support. The lower roller unit is divided into a flat roller body and a tapered roller body for selectively positioning into contact with the upper roller, so that the surface of the lower roller unit contacts the upper roller. A driving means is provided for rotating the lower roller unit. A pivoting means is provided for rotating the support on which the lower roller unit is mounted for selective use of the flat roller portion or the tapered roller portion. A hot-air generating unit is linked to the lower roller unit, driving unit and pivoting unit, and an upper roller is arranged above the lower roller unit.
REFERENCES:
patent: 4950352 (1990-08-01), Greller
patent: 6053230 (2000-04-01), Pelland
patent: 6129809 (2000-10-01), Ellenberger et al.
patent: 6471803 (2002-10-01), Pelland et al.
patent: 6701991 (2004-03-01), Seo
G W I P S
Sells James
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