John A Telischak

US Patent:

20010000643, May 3, 2001

Filed:

Dec 15, 2000

Appl. No.:

09/738496

Inventors:

David Roeker - Hudson WI, US
Jerome Fried - North St. Paul MN, US
Frederick Magadanz - Scandia MN, US
John Telischak - Apple Valley MN, US

Assignee:

3M Innovative Properties Company

International Classification:

B65H001/04

US Classification:

312/061000, 312/060000, 312/071000, 211/051000, 211/059300

Abstract:

A dispenser and method for attaching abrasive sheets to a backup pad. The dispenser conveniently centers on the backup pad an abrasive sheet that is larger than the backup pad. In a preferred embodiment, the dispenser comprises: a holder configured to receive circular abrasive sheets, the holder including a bottom, a top, front portion and a rear portion, wherein the rear portion extends farther from the bottom than the front portion, and wherein the bottom of the holder defines at least a 180 degree arc of a first circle having a first radius; a slider guide extending along the rear of the holder; and a spacer mounted in the guide, wherein the spacer is movable along the guide from a first portion within the front portion of the holder to a second position beyond the front portion of the holder, the spacer defining an arc of no more than 180 degrees of a second circle having a second radius smaller than the first radius.

US Patent:

20020090900, Jul 11, 2002

Filed:

Jan 10, 2001

Appl. No.:

09/757954

Inventors:

John Telischak - Apple Valley MN, US
David Roeker - Hudson WI, US
Joseph Pribyl - Eagan MN, US

Assignee:

3M Innovative Properties Company

International Classification:

B24B023/00

US Classification:

451/359000

Abstract:

An abrasive article backup plate assembly and grinder system having an abrasive article backup plate assembly is disclosed. The abrasive article backup plate assembly includes an abrasive article having an abrasive surface that includes a viewing window within the abrasive surface. A support member is provided including a first major surface which supports the abrasive article. At least a portion of the support member is made of materials sufficiently clear to collectively see through the support member and the viewing window. A method of abrading a surface using a grinder system including the abrasive article backup plate assembly is also disclosed.

US Patent:

61933376, Feb 27, 2001

Filed:

Jun 15, 1998

Appl. No.:

9/097420

Inventors:

David C. Roeker - Hudson WI
Jerome M. Fried - North St. Paul MN
Frederick A. Magadanz - Scandia MN
John Telischak - Apple Valley MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B65H 104

US Classification:

312 60

Abstract:

A dispenser and method for attaching abrasive sheets to a backup pad. The dispenser conveniently centers on the backup pad an abrasive sheet that is larger than the backup pad. In a preferred embodiment, the dispenser comprises: a holder configured to receive circular abrasive sheets, the holder including a bottom, a top, front portion and a rear portion, wherein the rear portion extends farther from the bottom than the front portion, and wherein the bottom of the holder defines at least a 180 degree arc of a first circle having a first radius; a slider guide extending along the rear of the holder; and a spacer mounted in the guide, wherein the spacer is movable along the guide from a first position within the front portion of the holder to a second position beyond the front position of the holder, the spacer defining an arc of no more than 180 degrees of a second circle having a second radius smaller than the first radius.