Patents by Inventor Richard L. Adrian

Richard L. Adrian 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).

  • Earthworking machine cutting element having carbide insert and method for forming the cutting element
    Patent number: 5473829
    Abstract: A carbide insert having fracture orienting grooves and a method for forming a cutting element for an earthworking machine. The carbide insert is placed in a groove formed on the cutting edge of the cutting element and there maintained by deforming walls of the cutting element into intimate contact with the carbide insert.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: December 12, 1995
    Assignee: Caterpillar Inc.
    Inventors: Richard L. Adrian, Phillip J. Shankwitz
  • Method for forming wear surfaces and the resulting part
    Patent number: 5427186
    Abstract: A method for forming a blade adapted to be attached to an earthworking vehicle and the resultant wear resistant blade has a wear surface assembly which includes a carbide insert sandwiched between a steel plate and a composite material within a pocket on the front surface of the blade spaced from the blade cutting edge.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: June 27, 1995
    Assignee: Caterpillar Inc.
    Inventors: Richard L. Adrian, James C. Henehan, Phillip J. Shankwitz
  • Method for forming hard particle wear surfaces
    Patent number: 5403544
    Abstract: A method for forming a wear surface on a metal substrate has a slurry which includes wear resistant particles, powdered steel, and binder system positioned on the metal substrate by retaining walls for a time sufficient for drying the slurry and forming a composite material of preselected thickness "T". The retaining walls are then removed and the substrate and the composite material are heated and passed through a rolling mill compressing the composite material.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: April 4, 1995
    Assignee: Caterpillar Inc.
    Inventors: Richard L. Adrian, James C. Henehan, Phillip J. Shankwitz