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:
May. 10, 1977
Filed:
Jul. 16, 1975
Applicant:
Inventors:
Hans Dieter Gerhards, Solingen-Grafrath, DT;
Hermann Moltner, Dusseldorf-Oberkassel, DT;
Assignee:
Firma Friedrich Kocks, Dusseldorf, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B / ;
U.S. Cl.
CPC ...
72234 ; 72365 ;
Abstract
An improved rolling mill capable of both stretch reducing tubes having relatively small external diameters and of reducing tubes having relatively large external diameters is provided having a plurality of successive roller stands some stands having small roll diameters and other stands having large roll diameters, the said other stands having large roll diameters being arranged to follow, in the direction of rolling, the said some stands having small roll diameters so that said other stands are at the exit end of the rolling mill.