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:
Jun. 30, 1987
Filed:
Jan. 31, 1986
Applicant:
Inventors:
Ronald Daniels, Portland, OR (US);
Robert B Turpin, Hillsboro, OR (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
A01J / ;
U.S. Cl.
CPC ...
425337 ; 425383 ; 264285 ; 156461 ;
Abstract
The roofing module of the present invention is comprised of a sheet of thermoplastic material which has opposed side margins that are bent upwardly at 90.degree. with respect to the body of the sheet to provide joinder tabs. The module is formed by transporting a flat sheet of the material between a pair of inwardly-facing radiant heaters which are focused on a line which the sheet will be bent about in order to soften the sheet along that line. After the sheet is softened along the fold line it is transported through a bending section comprised of a series of die rollers which cause the margin to progressively be bent upwardly to the desired orientation.