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:
Feb. 03, 1987
Filed:
Mar. 28, 1985
Applicant:
Inventors:
Robert E Fromson, Wilkins Township, Allegheny County, PA (US);
Ram Kossowsky, Pittsburgh, PA (US);
Charles S Nunamaker, Amherst, NY (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B26F / ; B21D / ;
U.S. Cl.
CPC ...
83685 ; 7610 / ; 76DI / ; 148-4 ; 148 39 ; 20419231 ; 83651 ; 83701 ; 30350 ;
Abstract
Resharpenable cemented carbide cutting tools which have been treated by ion implantation, as well as a method of making and using these tools, are described. Applicants have found that the benefits of the initial ion implantation on cemented carbide tool life will remain after sharpening of the tool.