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:
Oct. 27, 2015
Filed:
Feb. 13, 2009
Applicants:
Koen Vanoverberghe, Dilbeek, BE;
Willem Dekeyser, Assebroek, BE;
Dirk Meersschaut, Ooigem, BE;
Inventors:
Assignee:
NV Bekaert SA, Zwevegem, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 8/02 (2006.01); C21D 9/52 (2006.01); C21D 9/00 (2006.01); C21D 11/00 (2006.01); C21D 8/06 (2006.01); C21D 9/573 (2006.01);
U.S. Cl.
CPC ...
C21D 8/065 (2013.01); C21D 9/52 (2013.01); C21D 9/525 (2013.01); C21D 9/573 (2013.01); C21D 9/5732 (2013.01);
Abstract
A cold drawn carbon steel filament has a surface with traces of bismuth. The steel filament can be used as a sawing wire or as part of a steel cord. During its manufacturing the steel filament has been subjected to a controlled cooling by bringing the steel filament in contact with bismuth. Bismuth may replace lead without harming the environment.