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:
Sep. 07, 1999
Filed:
Jul. 17, 1997
Applicant:
Inventors:
Michael John Carpenter, Nuneation, GB;
Gary William Sweetman, Coventry, GB;
Assignee:
Sandvik AB, Sandviken, SE;
Primary Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
428325 ; 428457 ; 428469 ; 428472 ; 428698 ; 428704 ; 51295 ; 51307 ; 51309 ; 407119 ; 75238 ; 75243 ; 75244 ; 427444 ;
Abstract
An improved coldforming tool made of a zone in a tungsten carbide-cobalt cemented carbide is disclosed. The tool, preferably a wire drawing nib, contains WC with a mean grain size of 1.5-2 .mu.m and 5-7 weight % Co and with a carbon content close to saturation level and sufficient to exhibit cobalt magnetic measurements of 92%-98% of that of pure cobalt.