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:
Dec. 12, 2017
Filed:
Mar. 11, 2014
Applicant:
Sandvik Materials Technology Deutschland Gmbh, Dusseldorf, DE;
Inventors:
Thomas Frobose, Versmold, DE;
Udo Rauffmann, Werther, DE;
Assignee:
Sandvik Materials Technology Deutschland GmbH, Düsseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B 45/02 (2006.01); B65H 19/30 (2006.01); B21B 21/00 (2006.01); B21B 37/74 (2006.01);
U.S. Cl.
CPC ...
B21B 45/0284 (2013.01); B21B 21/00 (2013.01); B21B 37/74 (2013.01); B65H 19/305 (2013.01); B65H 2301/4148 (2013.01); B65H 2301/41812 (2013.01); B65H 2301/41826 (2013.01); B65H 2301/41829 (2013.01); B65H 2553/412 (2013.01);
Abstract
A method for producing a steel tube including the step of the manufacturing a steel tube having an inner tube wall, an outer tube wall, and a free tube cross-section enclosed by the inner tube wall, wherein after the manufacturing, the steel tube includes at least one contaminant on the inner tube wall. After the manufacturing of the steel tube, the inner tube wall is cleaned by introducing liquid or solid COinto the free tube cross-section, and of applying the liquid or solid COonto the inner tube wall to remove the contaminant therefrom.