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. 02, 1978
Filed:
Dec. 14, 1976
Applicant:
Inventors:
Werner Demny, Dusseldorf-Oberkassel, DT;
Hermann Moltner, Dusseldorf, DT;
Assignee:
Friedrich Kocks GmbH & Co., Dusseldorf, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B / ;
U.S. Cl.
CPC ...
72205 ; 72234 ; 72367 ;
Abstract
A process and mill for stretch reduction rolling of tubes is provided having individually driven roll stands, said roll strands being driven so as to impart a maximum traction force, limited only by the transferability of frictional forces between roll and tube, on the tube in all the passes that grip said tube, at least in the passes at the entry end of the mill.