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. 07, 1981
Filed:
Jul. 05, 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 angular structural shapes with flanges of equal width, specially from steel, in which a substantially round bar or billet is rolled in a first pass to a generally flat intermediate shape having a planar side and a side formed centrally with an upstanding triangular cross-section protuberance. Thereafter, in one or more passes, preferably no more than three passes, the blank is rolled to the angular profile in which the vertex is formed by the protuberance.