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:
Feb. 12, 1985
Filed:
Sep. 28, 1982
Applicant:
Inventor:
Jacques Metzdorf, Esch/Alzette, LU;
Assignee:
Arbed S.A., Luxembourg, LU;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21B / ;
U.S. Cl.
CPC ...
72177 ; 72225 ; 72234 ; 72366 ;
Abstract
In an eleven-step butterfly rolling process for producing inertial sheet piling, the upset grooving hitherto used in the fourth step is eliminated and replaced by one or more flat rolling steps intended to work the bulges at the edges of the flanges so as to impart a grain structure parallel to the flat rolled surfaces and thereby avoid cracking after the edge portion has been bent into hook configuration.