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:
Jun. 20, 1978
Filed:
Nov. 05, 1976
Applicant:
Inventor:
Richard Kieffer, Vienna, OE;
Assignee:
Ugine Carbone, Grenoble, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ; C22C / ;
U.S. Cl.
CPC ...
75238 ; 75204 ; 75205 ; 75224 ; 75227 ; 75244 ;
Abstract
The invention relates to hard fritted alloys and a method for their preparation. These alloys essentially contain cubic tantalum nitride with a binder based on carbides or nitrides of metal of groups IV-A and V-A, likewise of cubic structure, fritted at a temperature from 1400.degree. to 1700.degree. C at a nitrogen pressure from 30 to 200 bars. They are particularly appropriate for the manufacture of tools for cutting metal.