Method of manufacturing a metal-reinforced plastic panel
First Claim
Patent Images
1. A method of manufacturing a panel, said method comprising:
- providing a metal sheet to an extrusion system;
extruding a plastic on said metal sheet to form an extrudate; and
roll forming said extrudate into a final shape of said panel.
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Accused Products
Abstract
A composite panel comprised of a sheet of substrate and a coextruded layer of plastic covering the substrate. The panel may be used as a retaining panel for a body of water in a cantilever wall or an anchored sheet pile wall. The retaining panel may include a central portion, two side portions, and two flanges. The retaining panel may also include integral connecting portions. The substrate may be comprised of a material such as aluminum or steel, while the plastic may be a material such as polyvinyl chloride (PVC). Other applications of the composite panel include uses as building panels for sidewalls or roofs.
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Citations
20 Claims
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1. A method of manufacturing a panel, said method comprising:
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providing a metal sheet to an extrusion system;
extruding a plastic on said metal sheet to form an extrudate; and
roll forming said extrudate into a final shape of said panel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of manufacturing a panel, said method comprising:
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providing a flat metal sheet;
extruding a plastic on all sides of said metal sheet to form an extrudate; and
roll forming said extrudate into said panel, said panel having a generally U-shaped portion. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method of manufacturing a panel, said method comprising:
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providing a flat metal sheet;
coating a plastic on all sides of said metal sheet; and
roll forming said metal sheet such that a final shape of said panel is formed, said panel having a generally U-shaped portion. - View Dependent Claims (19, 20)
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Specification