The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 13, 1993
Filed:
Aug. 16, 1991
Applicant:
Inventor:
Robert C Whiteside, Harrison, MI (US);
Assignee:
Citadel Architectural Products, Inc., Federal Way, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04C / ; B32B / ;
U.S. Cl.
CPC ...
156212 ; 156216 ; 156285 ; 156286 ; 156382 ; 156213 ;
Abstract
A method and apparatus for forming a plastic film-protected external siding board in a molding press having an upper normally closed heating box open at its lower end, and a support system below the upper box which supports a board core with a plastic film disposed over it to project beyond its side and end edges. The upper box and film are brought into engagement to close the heating chamber with the film which is then billowed upwardly in the heating chamber to prevent it from sagging while heat is applied to raise the film to molding temperature. A differential pressure is then applied to the film to mold it to the core.