Patents by Inventor Donald Raymond McHugh

Donald Raymond McHugh 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).

  • Dressing of grinding wheels
    Patent number: 5647788
    Abstract: A grinding machine including a bed to receive a workpiece and a plurality of grinding wheels mounted on at least one side of the bed for grinding surfaces of a workpiece received in the bed. The grinding machine includes at least one dressing tool being mounted on a slide arranged for movement towards and away from the grinding surfaces of the grinding wheels, the slide being mounted on a carriage for movement generally parallel to the bed, the slide and the carriage being movable by a prime mover under control of a microprocessor.
    Type: Grant
    Filed: August 31, 1995
    Date of Patent: July 15, 1997
    Assignee: Unicorn Abrasives Limited
    Inventors: Donald Raymond McHugh, James Edward Sanders