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:
Mar. 05, 2002
Filed:
Apr. 13, 2000
Applicant:
Inventors:
Donna W. Bange, Eagan, MN (US);
David E. Johnson, Maplewood, MN (US);
Mara E. Liepa, St. Paul, MN (US);
Richard M. Pihl, Cottage Grove, MN (US);
Assignee:
3M Innovative Properties Company, Saint Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24D 1/100 ;
U.S. Cl.
CPC ...
B24D 1/100 ;
Abstract
Abrasive filaments including plastic abrasive particles interspersed in a thermoplastic matrix. The abrasive filaments can comprise monofilaments, coextruded core/sheath filaments, and coated preformed cores. Also disclosed are abrasive brush constructions using a plurality of such abrasive filaments mounted on a suitable substrate, and unitary injection molded abrasive brushes. Also disclosed are methods of making such filaments and brushes, and method of using such brushes.