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. 27, 1990
Filed:
Oct. 11, 1988
Henry B Dyer, Bryanston, Transvaal, ZA;
Other;
Abstract
A tool insert comprising an abrasive compact bonded to a cemented carbide support. The cutting edge of the tool is provided by the periphery of the compact. A plurality of recesses, each filled with abrasive compact material, extend into the cemented carbide support from the compact/carbide interface. The recesses are arranged in a series of rows, with each recess being staggered relative to its nearest neighbour in an adjacent row. In use, wear of the compact cutting edge occurs and eventually wears down to the carbide/compact interface. Thereafter, the carbide between adjacent recesses wears quicker than the diamond compact material which is located in each recess creating, in effect, a plurality of cutting ridges or projections.