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:
Jul. 11, 2000
Filed:
Dec. 18, 1997
Applicant:
Inventors:
Stephen Foster, West Midlands, GB;
Gary McCarthy, West Midlands, GB;
Alistair Grearson, West Midlands, GB;
Helene Ouchterlony, Ingaro, SE;
Assignee:
Sandvik AB, Sandviken, SE;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428212 ; 51255 ; 51307 ; 51309 ; 75228 ; 75236 ; 75237 ; 75241 ; 75242 ; 407119 ; 4274191 ; 4274192 ; 4274197 ; 428334 ; 428325 ; 428698 ; 428701 ; 428702 ;
Abstract
A cemented carbide drill/endmill blank and method of manufacture thereof wherein the drill/endmill includes a core and a surrounding tube with improved technological properties. The difference in Co-content between the core and tube is 1-10 wt-% units and the cubic carbide content is 8-20 wt-% in the tube and 0.5-2 wt-% in the core.