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:
Jul. 17, 2001
Filed:
Dec. 15, 1998
Stanley A. Watson, Franklin, MA (US);
David G. Powell, Wellesley Hills, MA (US);
Diamond Machining Technology, Inc., Marlborough, MA (US);
Abstract
An abrasive tool includes a first perforated sheet having a front surface and a back surface, and a second perforated sheet having a front surface and a back surface. A first layer of abrasive grains is bonded to the front surface of the first perforated sheet and a second layer of abrasive grains is bonded to the front surface of the second perforated sheet. A core is made of a first material, the core having a first surface and a second surface, the back surface of the first perforated sheet disposed adjacent to the first surface of the core and the back surface of the second perforated sheet disposed adjacent to the second surface of the core, the core being bonded to the first perforated sheet and the second perforated sheet by forming the core between the first perforated sheet and the second perforated sheet.