Patents by Inventor Phillip J. Shankwitz

Phillip J. Shankwitz 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: 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
  • 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
  • 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
  • Patent number: 5113677
    Abstract: In conventional fabrication manufacture the thickness of the steel plates are often determined by the metal section required at the weld joints. The subject apparatus and method overcomes this problem by selectively forming a thickened edge along the edge of a thinner steel plate which can now be limited to the thickness required to withstand the stresses on the fabrication. The thickened edge is produced by passing a plate supported on a table through a forming apparatus having a forming roller. The table is movable in an oblique direction relative to the plate so that the shape of the thickened edge may be varied. The forming apparatus and table are automatically controlled to produce a thickened edge of a desired shape intermittently or continuously along a linear or non-linear edge of the plate.
    Type: Grant
    Filed: May 9, 1991
    Date of Patent: May 19, 1992
    Assignee: Caterpillar Inc.
    Inventors: Dennis L. Blunier, Phillip J. Shankwitz, Maurice L. Caudill, Paul D. Andreson, Richard R. Kazmierzak, Joel C. Schweisberger
  • Patent number: 5024074
    Abstract: In conventional fabrication manufacture the thickness of the steel plates are often determined by the metal section required at the weld joints. The subject apparatus and method overcomes this problem by selectively forming a thickened edge along the edge of a thinner steel plate which can now be limited to the thickness required to withstand the stresses on the fabrication. The thickened edge is produced by forcing a plate supported by a table, by passing the plate through a forming apparatus comprised of a combination of rollers. The forming apparatus and table are automatically controlled to produce a thickened edge of constant shape along a non-linear edge of the plate.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: June 18, 1991
    Assignee: Caterpillar Inc.
    Inventors: Dennis L. Blunier, Phillip J. Shankwitz, Maurice L. Caudill, Ronald C. Bowar, Dwight E. Aussieker