Minnesota Mining and Manufacturing Company

3m Innovative Properties Company

Stanley L Conwell

William P Wood

Peter Joseph Fritz

Paul J Richtman

Michael Sean Bates

Richard Louis Fry

James W Malaske

Douglas E Devaney

Bruce W Livermore

Darla A Elgin

Bradley S McKay

An apparatus for making a surface treating article, and in one embodment for making a plurality of surface treating articles. The apparatus includes an attaching means for attaching a fastener to a surface treating web and a cutting means for cutting the web around the fastener to provide a surface treating article. In one embodiment, a sensor, such as a machine vision system, senses a position of the fastener on the web, with this sensed position being used to direct operation of the cutting means.

Apparatus for making a surface treating article

A surface treating article including a surface treating member and a fastener including a fiducial. The present invention also provides a preferred method of making a surface treating article that includes to a method of sensing the location of a fasteners on a surface treating web and thereafter cutting the surface treating web around the fastener to provide a surface treating article.

Method of making a surface treating article and such a surface treating article

Method of making a surface treating article

A method for making sintered abrasive grain. The sintered abrasive grain can be incorporated into abrasive articles such as bonded abrasives (e.g., grinding wheels), coated abrasives, and nonwoven abrasives.

Method for making sintered abrasive grain

Alpha alumina-based abrasive grain having an as sintered outer surface. The abrasive grain can be incorporated into abrasive articles such as bonded abrasives (e.g., grinding wheels), coated abrasives, and nonwoven abrasives.

Alpha abrasive alumina-based grain having an as sintered outer surface

Alpha alumina-based abrasive grain including aluminate platelets. The abrasive grain can be incorporated into abrasive articles such as bonded abrasives (e.g., grinding wheels), coated abrasives, and nonwoven abrasives.

Alpha alumina-based abrasive grain

An apparatus useful for sintering unsintered abrasive grain precursor to provide sintered abrasive grain. The sintered abrasive grain can be incorporated into abrasive articles such as bonded abrasives (e.g., grinding wheels), coated abrasives, and nonwoven abrasives.

Growing community of inventors

East Bethel, MN, United States of America

Stanley L Conwell