Minnesota Mining and Manufacturing Company

Roger C Lokken

John B Young

John J Gagliardi

The invention provides an abrasive article having a surface having a machine direction axis and opposite side edges, each side edge being parallel to the machine direction axis and a plurality of parallel rows of abrasive composites in fixed position on the surface, each row being aligned at an angle with a side edge which is neither 0.degree. nor 90.degree., and methods for making such an abrasive article. The abrasive article of this invention also can be used in any convenient form including an endless belt. The resulting abrasive article provides a high rate of cut, long belt life, and a relatively fine surface finish on the workpiece being abraded.

Abrasive article and method of making same

A brush segment for mounting on a slotted support structure is presented. The brush segment generally comprises: a substrate; a carpet of bristles mounted on the substrate in a preferred manner; and, a root system projecting outwardly from a side of the substrate opposite from the carpet of bristles. Brush segments according to the present invention are particularly well-adapted for mounting in association with longitudinal slots of a cylindrical hub arrangement, including conventional cylindrical hub arrangements. In preferred applications the substrate is formed from a pliable material which is then hardened in a preferred configuration.

Apparatus and brush segment arrangement for finishing wheel brushes

A brush segment for mounting on a slotted support structure is presented. The brush segment generally comprises: a substrate; a carpet of bristles mounted on the substrate in a preferred manner; and, a root system projecting outwardly from a side of the substrate opposite from the carpet of bristles. Brush segments according to the present invention are particularly well-adapted for mounting in association with longitudinal slots of a cylindrical hub arrangement, including conventional cylindrical hub arrangements. According to a first described embodiment, the substrate is flat and relatively flexible, and includes a plurality of root members thereon, for mounting. In a second embodiment described, the substrate is generally curved, elastic, and includes a single centrally located root member, for mounting. Also according to the present invention a combination of a hub and at least one brush segment is described. Further, a method of preparing a brush surface is also provided.

Method of preparing an industrial cylinder brush arrangement for

A brush segment for mounting on a slotted support structure is presented. The brush segment generally comprises: a substrate; a carpet of bristles mounted on the substrate in a preferred manner; and, a root system projecting outwardly from a side of the substrate opposite from the carpet of bristles. Brush segments according to the present invention are particularly well-adapted for mounting in association with longitudinal slots of a cylindrical hub arrangement, including conventional cylindrical hub arrangements. According to a first described embodiment, the substrate is flat and relatively flexible, and includes a plurality of root members thereon, for mounting. In a second embodiment described, the substrate is generally curved, elastic and includes a single centrally located root member, for mounting. Also according to the present invention a combination of a hub and at least one brush segment is described. Further, a method of preparing a brush surface is also provided.

Apparatus and brush segment arrangement for finishing wheel brushes; and

A support for an abrasive disc which includes a flat base, an upstanding annular rim and preferably four retainers mounted to the base within the rim and biased toward the rim to grip and retain the disc. The disc may be released by depressing cables connecting opposed diametrical pairs of retainers to withdraw the retainers.

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Woodbury, MN, United States of America

Roger C Lokken