Mutilating Eraser Combined With Burnisher Patents (Class 7/124)
  • Surface treating article including a hub
    Patent number: 6136143
    Abstract: A surface treating article including a hub. The surface treating article and hub provide an improved mechanical interlock to each other. Preferably, the unitary surface treating article is molded to the hub.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: October 24, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Phillip M. Winter, Charles B. Dousette, Jerome M. Fried, Yvonne I. Lund, David D. Lindeman
  • Portable apparatus for removing heat softenable surface coverings
    Patent number: 5879504
    Abstract: A soft elastomeric disc for removal of polymeric compositions from an underlying substrate. The disc is useful for removing decorative decals, stripes, graphics, emblems, protective moldings, paint and adhesive and is made from a filled elastomeric composition. The elastomeric composition is filled with a system that combines an organic lubricant and a non-abrasive particulate.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: March 9, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Phillip M. Winter