Shaped polymeric articles
First Claim
Patent Images
1. An extruded siding panel, comprising:
- a sheet of polymeric material, said sheet including a hot-formed central portion comprising an aesthetic pattern;
a first lateral edge portion containing a butt edge;
a second lateral edge portion containing a nail edge, and including a plurality of fastener apertures therethrough;
said first and second lateral edges being formed substantially independently from said forming of said central portion while the polymeric material in said central portion has a temperature below its heat deflection temperature and the polymeric material in said first and second lateral edge portions is above its heat deflection temperature.
1 Assignment
0 Petitions
Accused Products
Abstract
Siding panels and intermediate articles of their manufacture are provided. The siding panels include a central portion including an aesthetic pattern and a pair of lateral edge portions which are formed while the polymeric material is still above its heat deflection temperature, and preferably, when the central portion has been hot-formed and cooled. This invention improves the art for vacuum-forming siding panels, dentil molding and other building products made by continuous vacuum forming.
69 Citations
18 Claims
-
1. An extruded siding panel, comprising:
a sheet of polymeric material, said sheet including a hot-formed central portion comprising an aesthetic pattern;
a first lateral edge portion containing a butt edge;
a second lateral edge portion containing a nail edge, and including a plurality of fastener apertures therethrough;
said first and second lateral edges being formed substantially independently from said forming of said central portion while the polymeric material in said central portion has a temperature below its heat deflection temperature and the polymeric material in said first and second lateral edge portions is above its heat deflection temperature.- View Dependent Claims (2, 3, 4, 5, 6, 7)
-
8. An intermediate article in the manufacturing of a siding panel, comprising:
-
an extruded sheet of polymeric material, said sheet including a hot-formed central portion comprising an aesthetic pattern and having a temperature which is less than the heat deflection temperature of said polymeric material; a pair of lateral edge portions having a temperature which is above said heat deflection temperature at least for a period of time required to mechanically form said lateral edge portions into a desired configuration. - View Dependent Claims (9, 10, 11, 12, 13)
-
-
14. A continuously formed siding panel, comprising:
an extruded sheet of polymeric material, including a central portion having an aesthetic impression therein;
a butt edge disposed along a first lateral edge portion of said sheet; and
a nail edge disposed along a second lateral edge portion of said sheet, said butt edge and said nail edge being formed substantially independently from said central portion.- View Dependent Claims (15, 16, 17)
-
18. A continuously formed siding panel of substantially unlimited length, comprising:
an extruded sheet of polymeric material comprising polyvinyl chloride, said sheet including a central vacuum-formed portion having a plurality of shingle impressions, a butt edge disposed along a first lateral edge portion of said sheet and a nail edge disposed along a second lateral edge portion of said sheet, said lateral edge portions formed after said central portion has been vacuum-formed and while the polymeric material in said lateral edge portions is above the heat deflection temperature of said polymeric material.
Specification