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. 06, 1984
Filed:
Nov. 30, 1981
Applicant:
Inventors:
Nicoll A Campbell, Parkview, Johannesburg, Transvaal, ZA;
Henry B Dyer, Bryanston, Sandton, Transvaal, ZA;
Rainer Dietrich, Linden, Johannesburg, Transvaal, ZA;
Cornelius Phaal, Rivonia, Sandton, Transvaal, ZA;
Douglas J Reid, Shannon, County Clare, IE;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
51295 ; 51293 ; 51307 ; 51309 ; 51DI / ;
Abstract
A method of making inserts suitable for tool or drill bits which includes the step of fragmenting, e.g. by means of a laser beam, an abrasive compact in a plurality of discrete, non-segmental fragments. The inserts may have a variety of shapes, some of which are new, such as conical, truncated conical or truncated pyrimidal. The inserts are particularly useful for wire-drawing die blanks and core or oil-well drill bits.