Method of manufacturing exterior siding
First Claim
1. A method of manufacturing a self-supporting exterior facing layer of a thermoplastic polymer for use in an insulating siding unit for home installation, comprising the steps of:
- (a) molding a thin, uniformly thick sheet of thermoplastic polymer into a generally rectangular plank including a pattern of molded depressions and protuberances, and a flat plate extending into a generally U-shaped portion projecting outwardly of one edge of said plank;
(b) concurrently molding an arcuate depression forming an integral hinge connection intermediate said projecting flat plate and said rectangular plank;
(c) and subsequently bending said projecting flat plate and U-shaped portion in a negative arc about said arcuate depression into substantially folded relationship with said plank whereby said projecting flat plate and U-shaped portion overlies the edge of said plank to which it is joined.
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Accused Products
Abstract
A method of manufacturing an exterior facing layer for vinyl siding, including molding a pattern of depressions and protuberances into a sheet of a thermoplastic polymer simulating cedar shake shingles, and concurrently molding an extension to the molded plank incorporating an integrally molded hinge connection. Thereafter, the extension is folded over the plank edge in a mechanical bending sequence and bonded thereto. In another embodiment of the invention, a foam filler material may be poured into the molded facing layer cavities and a metallic foil backing bonded thereto so as to form a laminar siding construction.
80 Citations
15 Claims
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1. A method of manufacturing a self-supporting exterior facing layer of a thermoplastic polymer for use in an insulating siding unit for home installation, comprising the steps of:
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(a) molding a thin, uniformly thick sheet of thermoplastic polymer into a generally rectangular plank including a pattern of molded depressions and protuberances, and a flat plate extending into a generally U-shaped portion projecting outwardly of one edge of said plank; (b) concurrently molding an arcuate depression forming an integral hinge connection intermediate said projecting flat plate and said rectangular plank; (c) and subsequently bending said projecting flat plate and U-shaped portion in a negative arc about said arcuate depression into substantially folded relationship with said plank whereby said projecting flat plate and U-shaped portion overlies the edge of said plank to which it is joined. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification