Patents by Inventor Edwin A. Goralski

Edwin A. Goralski 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).

  • Patent number: 4844967
    Abstract: A coated abrasive back up pad is disclosed that may be attached to different types of drive motor assemblies by a simple rearrangement of an adapter included in the back up pad. The back up pad may have passageways with offset portions in a foam layer of the pad positioned to communicate between openings in an abrasive disk attached to the back up pad and vacuum systems in various drive motor assemblies to which it may be attached. A novel method is disclosed for molding the back up pad to form such passageways which includes molding dies into the pad that can later be removed by compressing the foam layer so that the dies cut outlet openings through which they are then removed.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: July 4, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Edwin A. Goralski, David C. Roeker
  • Patent number: 4137670
    Abstract: A hand file board of the type used in repairing damage to the bodies of automobiles. The hand file provides a firm elongate planar support surface against which a sheet of abrasive material may be secured, and front and rear handles which can be used for manipulating the file to shape, sand, or scuff a surface with abrasive material supported on the file board. A central handle is provided between the front and rear handles, which central handle is disposed generally parallel with the abrasive support surface and is specially shaped for firm grasping by either hand to allow one handed use of the file board for light sanding or scuffing or when it is awkward or impossible to use two hands on the file board.
    Type: Grant
    Filed: October 11, 1977
    Date of Patent: February 6, 1979
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Edwin A. Goralski