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:
May. 29, 1979
Filed:
Nov. 10, 1977
Applicant:
Inventor:
Fritz Frehn, Krefeld, DE;
Assignee:
Thyssen Edelstahlwerke AG, Krefeld, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ; C22C / ;
U.S. Cl.
CPC ...
75236 ; 75243 ;
Abstract
A sintered hard-material alloy for use in tool parts and parts subject to wear having a coefficient of heat expansion approximately equal to that of tool steel. The hard material alloy consists essentially of 15 to 80% by weight of hard material, preferably titanium carbide, and 20 to 80% by weight of steel with: