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:
Apr. 20, 2004
Filed:
Nov. 08, 2001
Vladimir Gorokhovsky, Richmond Hill, CA;
G & H Technologies LLC, Florence, MT (US);
Abstract
A protective coating applied to abrasive layers of polycrystalline diamond located at the tip of abrasive dental tools is described. The protective coating is provided to protect the polycrystalline diamond layers in the course of storage, packaging, handling and sterilization. The protective coating is removable by abrasive forces when the cutting surfaces come into contact with porcelain and hard ceramic dental materials, teeth, bone or similar hard materials, and subsequently, the broken protective coating is rolled back and collected in the crevices and gaps of the polycrystalline diamond layer. The protective encapsulating coating can be made of a tough high melting point polymer layer, or a layer of a tough polymer also containing fine ceramic particles, or of a relatively soft, oxidation resistant metal or alloy.