# US 2008/0185745 A1 · Molded plastic panel

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- Number: US 2008/0185745 A1
- Document ID: US20080185745A1
- Status: Published application
- Kind: A1
- Application number: 11/559,841
- Filed: 2006-11-14
- Published: 2008-08-07
- Earliest claimed: 2005-11-18
- Inventors: Corwyn Strout; Claude Brown; David Jacobson; Wayne Moore; Monty Cochran
- Web page: https://patentgrep.com/patent/US20080185745A1

## CPC

- E04F 13/0864: {composed of superposed elements which overlap each other and of which the flat outer surface includes an acute angle with the surface to cover}
- Y10T 428/24273: including aperture
- E04F: FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS (windows, doors E06B)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A molded panel for buildings is manufactured in a manner that permits the blocking tab along the upper edge of the panel to be molded in a position that is close to its final desired position. Pressure is applied to the locking tab as it cools, thereby bringing the locking tab into its final position.

## Claims

### Claim 1

A method of producing a plastic panel for attachment to a building surface, comprising:
injecting plastic into a mould to form a body in an injection moulding process comprising the application of heat to form said body, said body including at least one row having a pre-selected appearance and an attachment hem adjacent an upper portion of said body, said attachment hem having a locking tab projecting therefrom;
removing said mould and permitting said body to cool; and
applying pressure to said locking tab hem during cooling to permit said locking tab to solidify in a desired position.

### Claim 2 (depends on 1)

The panel formed by the method of claim 1 wherein said locking tab is continuous.

### Claim 3 (depends on 1)

The panel formed by the method of claim 1 wherein said at least one row having a pre-selected appearance comprises an upper row of simulated shingles and a lower row of simulated shingles below said upper row.

### Claim 4 (depends on 2)

The panel according to claim 2 wherein at least one of said lower and said upper row of simulated shingles is irregularly spaced.

### Claim 5 (depends on 1)

The panel formed by the method of claim 1 wherein said body further comprises at least one side flange extending laterally outwardly of said body, said side flange defining a fastening slot for inserting a fastener therethrough to attach said panel to a building wall, wherein said slot extends at an acute angle of about 5-30° relative to horizontal.

### Claim 6 (depends on 1)

The panel formed by the method of claim 1 wherein said panel comprises exterior wall siding.

### Claim 7 (depends on 1)

The panel formed by the method of claim 1, wherein said panel comprise a roofing panel.