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. 16, 2001
Filed:
Feb. 23, 1999
William A. Bryant, McKeesport, PA (US);
Edward V. Conley, North Huntingdon, PA (US);
Ted R. Massa, Latrobe, PA (US);
Kennametal Inc., Latrobe, PA (US);
Abstract
A hard member for use as a wear part or a hard insert for a point attack style of tool or a rotary style of tool. The hard member having a composition of between about 5 volume percent and about 40 volume percent binder alloy, and between about 60 volume percent and about 95 volume percent tungsten carbide. The tungsten carbide has an average grain size between about 1 micrometer and about 30 micrometers. The binder alloy comprises an alloy of nickel and chromium wherein the nickel ranges between about 70 weight percent and less than 93 weight percent and the chromium ranges between greater than 7 weight percent and about 30 weight percent.