Apparatus and method for applying strips of thermoplastic material to thermoplastic membranes
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United States of America Patent
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Mar 30, 2010
Grant Date -
Jul 13, 2006
app pub date -
Jan 4, 2006
filing date -
Jan 13, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
Apparatus for applying thermoplastic strips to thermoplastic membranes, each strip having an upstanding central portion and opposed flange portions extending widthwise therefrom. The apparatus includes a housing having drive wheels for movably supporting the housing. A guide assembly fixed to the housing includes a first pair of guide wheels for disposition around an applied first strip and movable along the first strip with one guide wheel on either side thereof, and a second pair of guide wheels for disposition around a second strip to be applied and movable along the second strip, so as to guide the second strip to a welding station on the apparatus. The welding station is adapted to heat weld the second strip to the membranes along the length of the second strip equidistantly from the first strip.
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