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:
Jan. 20, 1998
Filed:
Oct. 10, 1996
Applicant:
Inventors:
Frank B Battaglia, Latrobe, PA (US);
Vincent J Cackowski, Derry, PA (US);
Aharon Inspektor, Pittsburgh, PA (US);
Edward J Oles, Ligonier, PA (US);
John J Prizzi, Greensburg, PA (US);
Assignee:
Kennametal Inc., Latrobe, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ; C23C / ;
U.S. Cl.
CPC ...
4271261 ; 427249 ; 4272551 ; 4272552 ; 427554 ; 427309 ; 427314 ; 4274197 ; 4272557 ;
Abstract
A method of producing a cutting tool, comprising a substrate which has a roughened surface that presents a surface roughness of between 15 microinches R.sub.a and 125 microinches R.sub.a. A coating is applied to the roughened surface of the substrate by physical vapor deposition. A coated cutting tool having a low cobalt substrate and experiencing long tool life is also discussed.