Patents by Inventor Roy L. Bain

Roy L. Bain 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).

  • Method of manufacturing curved wear surfaces for skid shoes
    Patent number: 6000117
    Abstract: A wear surface for helicopter shoes is constructed by forming a railed enclosure on a curved base plate, placing a mosaic of smooth-surfaced tungsten carbide blocks on the base plate within the enclosure, brazing the blocks to the plate and rails, and grinding the rails to form a smooth, edgeless transition between the wear surface and the plate surface.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: December 14, 1999
    Inventor: Roy L. Bain
  • Curved wear surface for helicopter skid shoes
    Patent number: 5893532
    Abstract: A wear surface for helicopter shoes is constructed by forming a railed enclosure on a curved base plate, placing a mosaic of smooth-surfaced tungsten carbide blocks on the base plate within the enclosure, brazing the blocks to the plate and rails, and grinding the rails to form a smooth, edgeless transition between the wear surface and the plate surface.
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: April 13, 1999
    Inventor: Roy L. Bain
  • Wear element for a scraping operation
    Patent number: 5224555
    Abstract: A wear insert for protecting a working element operating in an abrasive environment comprises a pair of spaced apart legs which define a gap for receiving a mounting flange of the protected working element. The wear element wraps around the mounting flange and interlocks with cooperative flanges of the working element to securely hold the insert to the working element.
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: July 6, 1993
    Assignee: Bucyrus Blades, Inc.
    Inventors: Roy L. Bain, Roger A. Salway