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. 22, 1988
Filed:
May. 15, 1987
Applicant:
Inventors:
Assignee:
Treibacher Chemische Werke Aktiengesellschaft, Treibach, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24D / ;
U.S. Cl.
CPC ...
51293 ; 51309 ;
Abstract
An abrasive material of great hardness and high tenacity particularly suitable for high-pressure grinding consists essentially of a sintered, microcystalline .alpha.--Al.sub.2 O.sub.3 abrasive material having a purity of least 98.5% and a density of at least 95% of theoretical density, the .alpha.--Al.sub.2 O.sub.3 crystallites of the material being smaller than 4.mu., preferably smaller than 3.mu..