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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.:

US 4049397 B1

PDFFull Text
Date of Patent:
Sep. 20, 1977

Filed:

Apr. 16, 1975

Process for the preparation of granulated abrasives from fused or

Applicant:
Inventors:

Gerd-Edzard Bockstiegel, Troisdorf, DT;

Manfred Neidhardt, Siegburg, DT;

Gerhard Rehfeld, Aachen, DT;

Werner Umlauf, Niederkassel, DT;

Assignee:

Dynamit Nobel Aktiengesellschaft, Troisdorf, DT;

Attorney:

Burgess, Dinklage & Sprung

Primary Examiner:

Donald J Arnold

Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
5130 / ; 51293 ;
Abstract

A process for the manufacture of granular abrasives having improved grain toughness from refractory, inorganic hard substances which comprises crushing a lump or block of said refractory inorganic substance, thereafter subjecting the resultant grains to a grind sorting process such that substantially only the porous grains, grains containing flaws or coarsely crystalline grains are comminuted and separating them in the ground condition from the balance of the material.

Find Patent Forward Citations

Bockstiegel, Gerd-Edzard. (1977). Process for the preparation of granulated abrasives from fused or (U.S. Patent No. 4049397). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4049397

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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