3m Innovative Properties Company

Dyscnet Inc.

Daniel A Billig

Ann M Hawkins

Dwight D Erickson

Michael John Annen

Jaime A Martinez

Brian G Koethe

James L McArdle

Yuyang Liu

Carlos A Barrios

Junting Li

John L Barry

Jing Zhang

Deborah J Eilers

Caroline E Morel

Victor A Cárdenas

Michael L Billig

Monika E Frendt

The disclosure relates to an abrasive article comprising: a fabric substrate comprising strands forming first void spaces between the strands; a laminate joined to the fabric substrate; a cured resin composition joined to the laminate opposite the fabric substrate; abrasive particles joined to the cured resin composition; and a plurality of second void spaces extending through the laminate coinciding with first void spaces in the fabric substrate. The disclosure also relates to methods of making such abrasive articles.

Abrasive article

A method of polishing transparent armor, preferably to optical clarity. The method can be used on flat or contoured armor, manually or via robotic automation. The method includes using a step-wise progression of diamond, structured abrasive articles.

Method of polishing transparent armor

Systems and methods control abrading operations of an abrading machine by sensing characteristics of an abrading article installed on the abrading machine. When a problem is discovered by sensing the article, appropriate actions may be taken. As one example, the abrading article may be sensed to determine whether the abrading article has been installed with an abrasive side facing the wrong direction. An alert allows an operator to reinstall the article. As another example, the abrading article may be sensed to determine whether splicing tape is present to hold two pieces of abrading tape together. The article may be advanced until the splicing tape is beyond an abrading zone. As another example, the abrading article may be sensed to determine whether the abrading article has stopped moving while the article drive is advancing because the article has broken. An alert allows an operator to repair the break. As yet another example, the abrading article may be sensed to determine whether it is the appropriate grade. An alert allows the article grade to be corrected.

System and method for detecting abrasive article orientation

An entrapment device for entrapping projectile or flying objects employed in a game, such as flying discs employed in the game of disc golf, comprises an entrapment frame assembly including a top basket support and a bottom basket support. The entrapment device comprises a net attachable to the top basket support and having an entrapment zone portion adapted to absorb kinetic energy from the projectile or flying object to cause the projectile or flying object to drop into and be entrapped in the bottom basket support.

Entrapment device having a net

Growing community of inventors

Maplewood, MN, United States of America

Daniel A Billig