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:
Jan. 05, 1988
Filed:
Apr. 21, 1986
Wilbur R Youngs, Scroggins, TX (US);
Collier Metal Specialties, Inc., Garland, TX (US);
Abstract
In accordance with the invention, a roll forming machine is provided having a plurality of sets of rotatable opposed drive rollers having parallel axes with each set of drive rollers including at least one forming edge. Each set of drive rollers also includes at least one rotatable forming roller opposite a forming edge and having its axis in a plane defined by the parallel axes of the set of drive rollers. The angle between the axes of the drive rollers and forming roller of each set is increased incrementally in successive sets. The contact surface of the drive roller defines a right circular cylindrical surface. The contact surface of the forming roller defines a frusto-conical surface and preferably a right circular cylindrical surface.