Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With gas – vapor – or flame contact means for work
Patent
1987-11-09
1989-10-10
Simmons, David
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With gas, vapor, or flame contact means for work
156499, 156555, 156574, B44C 700
Patent
active
048729418
ABSTRACT:
The present invention provides an automatic welding apparatus for welding a pair of horizontally overlapping thermoplastic materials in sheet form along the overlap thereof. The apparatus includes, in a preferred embodiment thereof, a chassis having a material guide including a pair of overlapping channels, vertically spaced from one another and said materials, to receive the overlapping portions of the materials and to maintain and to produce a separation between the materials. Located within the separation are an electrically heated prismatic member and a first and a second means to produce first and second streams of heated air to heat the materials to plasticity. A pair of pressure rollers acting against the materials and in a preferred embodiment a pair of guide rollers mounted on a guide plate attached to the aforementioned material guide are provided to urge the materials against one another so that they weld to one another.
The chassis has a set of wheels and an electrical motor to turn the wheels and the pressure rollers so that the apparatus of the present invention automatically welds the materials and advances along the overlap of the materials.
REFERENCES:
patent: 3408242 (1968-10-01), Rochla
patent: 4146419 (1979-03-01), Neidhart
patent: 4440588 (1984-04-01), Stevenson et al.
patent: 4447288 (1984-05-01), Seaman
patent: 4504352 (1985-03-01), Meyer
patent: 4533423 (1985-08-01), Johnson et al.
patent: 4743332 (1988-05-01), Black
patent: 4744855 (1988-05-01), Ellenberger
patent: 4747903 (1988-05-01), Miller
Lippman Gerald
Lippman Glenn W.
Simmons David
Smith Brian D.
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