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:
Nov. 30, 1993
Filed:
Aug. 29, 1991
Applicant:
Inventors:
Anakkavur T Santhanam, Monroeville, PA (US);
Rajendra V Godse, Greensburg, PA (US);
George P Grab, Greensburg, PA (US);
Dennis T Quinto, Greensburg, PA (US);
Kenneth E Undercoffer, Greensburg, PA (US);
Prem C Jindal, Greensburg, PA (US);
Assignee:
Kennametal Inc., Latrobe, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23C / ;
U.S. Cl.
CPC ...
428212 ; 51295 ; 51307 ; 51309 ; 75240 ; 407119 ; 428469 ; 428472 ; 428697 ; 428698 ; 428699 ;
Abstract
Provided is a coated cutting tool having a binder enriched substrate. The coating includes at least one CVD layer which may be in a state of residual tensile stress and at least one layer in a state of residual compressive stress.