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:
Oct. 18, 1988
Filed:
Jun. 16, 1987
Applicant:
Inventor:
Yasutaka Inoue, Tokyo, JP;
Assignee:
Inoue Sangyo Co. Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72166 ;
Abstract
The invention relates to a roll bending machine consisting of two rolls capable of adjusting the radius of curvature of the pressured roll, having a rotatable endless belt between the pressured roll and the works, forming the works not only into ring-shaped products of a desired diameter but also into involute-curved, spiral-shaped, elliptical-shaped, triangular-shaped (rounded), rectangular-shaped and other sophisticated curved products, providing a uniform finish to the works, meeting the size tolerance and desired diameter accuracy, eliminating any damage to the works.