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:
Aug. 26, 1986
Filed:
Nov. 13, 1984
Applicant:
Inventor:
Thomas W Schwartz, Troy Township, St. Croix County, WI (US);
Assignee:
Minnesota Mining and Manufacturing Company, Saint Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
B24D / ;
U.S. Cl.
CPC ...
51362 ; 51376 ;
Abstract
A coated abrasive back up pad comprising a layer of resiliently compressible foam, a generally rigid backing plate fixed to one surface of the layer of foam and including, structure adapted for coupling the back up pad to a drive motor, and a flexible magnetized layer fixed to a surface of the foam layer opposite the backing plate and having a generally planar outer support surface. The foam layer includes a lip extending around the peripheral edge of the magnetized layer to protect that edge during use of the pad to drive a sheet of coated abrasive.