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. 03, 1977
Filed:
Oct. 23, 1975
Applicant:
Inventors:
Werner Demny, Dusseldorf-Oberkassel, DT;
Hermann Moeltner, Dusseldorf-Oberkassel, DT;
Assignee:
Firma Friedrich Kocks, Dusseldorf, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B / ;
U.S. Cl.
CPC ...
72205 ; 72234 ;
Abstract
A multistand rolling mill for stretch reducing tubes is provided in which the first stands of a plurality of successive stands are operated to build up tension and at least one of said stands is provided with means for varying the roll speed to provide a desired speed step in those stands designed to build up tension.