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 7347882 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 25, 2008

Filed:

Jan. 17, 2006
Applicants:

Alex Cooper, Brooklyn, NY (US);

Yevgeny Bederak, Long Meadow, MA (US);

Alexander Bederak, Long Meadow, MA (US);

Inventors:

Alex Cooper, Brooklyn, NY (US);

Yevgeny Bederak, Long Meadow, MA (US);

Alexander Bederak, Long Meadow, MA (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24D 3/00 (2006.01); B24D 11/00 (2006.01); B24D 17/00 (2006.01); B24D 18/00 (2006.01); C09K 3/14 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of producing an abrasive tool, comprising the steps of preparing a blank of an abrasive tool including abrasing grains in a bond; placing the thusly formed blank in a container; covering the thusly formed blank in the container with at least a protective material; applying a glass material in the container so as to close the container and to form a lock which prevents penetration of an outside atmosphere through the lock into an interior of the container and at the same time allows escape of gases and contaminant from the interior of the container outside; placing the container into a heating device and providing in the heating device a temperature allowing melting of the glass material and creating the lock and also providing sintering of the blanks in the interior of the container; removing the container from the heating device after the sintering; breaking the lock and removing the sintered blanks which form the abrasive tools from the container.


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