Heatable shoe for a joint welding apparatus for overlapping portions of webs
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 5, 1993
Grant Date -
N/A
app pub date -
Jun 19, 1992
filing date -
Jan 30, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A heatable shoe for a joint welding apparatus for overlapping joint welding of asphalt roofing is designed in such a way that it will be able to produce a wave of liquid asphalt in an opening or slit between a front and a rear part of the shoe, thereby producing a maximum quantity of liquid asphalt inwards to a line approximately in the center of the overlapping portions between the roofing webs. This is where the mechanical fasteners are located, which are thus baked or embedded in and sealed by in liquid asphalt in a favorable manner.
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Family
International Classification(s)
Cited Art Landscape
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