Patents by Inventor Marcus L. Eichinger

Marcus L. Eichinger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Rotary bristle tool with preferentially oriented bristles
    Patent number: 5983434
    Abstract: A rotary bristle tool having a backing with a plurality of bristles extending therefrom. The bristles have a cross section and preferential orientation to control deflection during rotation of the tool. One embodiment is well suited for refining the inside surface of two-way and three-way corners. The backing and bristles are preferably integrally molded. The rotary bristle tool is molded from a moldable polymer such a thermoset polymer, thermoplastic polymer, or thermoplastic elastomer. The rotary bristle tool can include an attachment member molded integrally with the backing. Also disclosed is a method of making a rotary bristle tool and a method of refining a workpiece surface with a rotary bristle tool.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: November 16, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Marcus L. Eichinger, Dean S. Holmes, David E. Johnson, Dennis W. Wilson
  • Molded radial brush
    Patent number: D378003
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: February 11, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Marcus L. Eichinger, David E. Johnson