Building construction element and the machine and method for its manufacture

• US 4,864,788 A
• Filed: 06/17/1988
• Issued: 09/12/1989
• Est. Priority Date: 09/30/1986
• Status: Expired due to Fees

• Current Assignee: Eugene R. Tippmann
• Original Assignee: Eugene R. Tippmann
• Inventors: Tippmann, Eugene R.
• Primary Examiner(s): RIDGILL JR, JAMES
• Application Number:
  US07/208,119
• Time in Patent Office: 452 Days
• Field of Search: 428/86, 428/309.9, 52/309.8, 52/309.9, 52/675, 52/529
• US Class Current: 52/309.8
• CPC Class Codes: B23D 1/26 for planing edges or ridges or cutting grooves cutting helical grooves B23D5/02
• CPC Class Codes: B26D 3/28 Splitting layers from work; Mutually separating layers by cutting B26D3/30 takes precedence; Recovery of plastics or other constituents of waste material containing plastics B29B17/00
• CPC Class Codes: B29C 2793/00 Shaping techniques involving a cutting or machining operation
• CPC Class Codes: B29C 37/0082 Mechanical anchoring B29C66/303 takes precedence
• CPC Class Codes: B29C 44/321 the preformed part being a lining, e.g. a film or a support lining
• CPC Class Codes: E04F 13/18 of organic plastics with or without reinforcements or filling materials of plastic-bound fibres or chips E04F13/16 or with an outer layer of organic plastics with or without reinforcements or filling materials; plastic tiles E04F13/0864 takes precedence

Abstract

A building construction element such as insulative siding is disclosed having an outer skin with an inner surface on which a plurality of individual, spaced-apart, arcuate-shaped projections are cut or gouged from the inner surface by a cutting tool means. A low density polymetric foam material is disposed over the inner surface so as to completely surround each arcuate projection to thereby securely lock the skin to the foam material after it sets.

Claims

1. A building element comprising:

(a) an elongated strip of polymeric material forming an outer skin for said element, said strip having an outer facing surface and an inner surface containing a plurality of individual spaced-apart projections gouged from a portion of the thickness of the material forming said inner surface and extending above the plane of said inner surface, each of said projections being arcuate in shape and integrally connected at one end with said strip, and

(b) a low density plastic material disposed over said inner surface and around said arcuate projections to mechanically lock said strip to said foam material and thereby resist separation of said strip from said foam material irrespective of the direction of movement of said strip relative to said foam material after said foam sets.

2. A building element as set forth in claim 1 wherein said low density plastic material is polyurethane foam.