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:
Jul. 21, 1981
Filed:
Jul. 02, 1979
Applicant:
Inventor:
Fernand Schmitz, Lorentzweiler, LU;
Assignee:
ARBED Acieries Reunies de Burbach-Eich-Dudelange, Societe Anonyme, Luxembourg, LU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B / ;
U.S. Cl.
CPC ...
72234 ; 72366 ;
Abstract
A method of rolling angle structural shapes in which a bar of rectangular ofile is rolled in a first step to form a blank having a rounded convex protuberance on one side and a flat opposite side. In at least one subsequent state, the blank is rolled to transform the protuberance or hump into a triangular protuberance or ridge with flanks lying substantially at a right angle, whereupon the blank is bent, after rounding the edges of the flat surface, to form the angle profile.