Continuous production of plastic siding panels with separate shingle appearance
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 21, 2003
Grant Date -
Nov 15, 2001
app pub date -
Jul 31, 2001
filing date -
May 22, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A sheet of plastics material is continuously extruded onto the upper run of an endless conveyor which carries aluminum vacuum mold plates each defining a cavity with a shingle pattern. The sheet is progressively vacuum-formed into the mold plate cavities, and opposite longitudinal upper and lower portions of the sheet are progressively vacuum-formed, with traveling plug assist in one embodiment, to define shingle panels with hook-shaped lower portions and upper portions defining grooves for receiving the lower portions. The upper portion of the sheet is punched with longitudinally spaced slots to form a nailing flange, and the sheet is then cut laterally at longitudinally spaced intervals to produce elongated siding panels each having integrally connected shingle panels. The shingle panels may have different bottom configurations or profiles and are interchangeable.
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International Classification(s)
Cited Art Landscape
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