Patents by Inventor Kristy J. Johnson

Kristy J. Johnson 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).

  • Tribological performance of thermoplastic composites via thermally conductive material and other fillers and a process for making the composite and molded articles of the same
    Patent number: 6596792
    Abstract: This thermoplastic composition and process for making articles of the same includes a thermoplastic matrix that includes a resin and filler materials wherein the filler materials includes a combination of fibers, at least one lubricant, and thermally conductive material, for improving tribological performance of thermoplastic materials. In the alternative, a thermally conductive lubricant may be substituted for the combination of the lubricant and the thermally conductive material.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: July 22, 2003
    Assignee: Caterpillar Inc
    Inventor: Kristy J. Johnson
  • Product having a thin film polymer coating and method of making
    Patent number: 6488992
    Abstract: Elastomeric seals, including O-rings, may have chemically resistant thin films applied by the technique of plasma polymerization to the surface of the elastomer, enhancing wear resistance and environmental resistance without changing the physical properties of the elastomer. The films may be a silane polymer applied by plasma deposition in a radio frequency/microwave dual power source reactor.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: December 3, 2002
    Assignee: University of Cincinnati
    Inventors: F. James Boerio, Alan M. Dickey, R. Giles Dillingham, Kristy J. Johnson, David A. Penning
  • Triboligical performance of thermoplastic composites via thermally conductive material and other fillers and a process for making the composite and molded articles of the same
    Patent number: 6372836
    Abstract: This thermoplastic composition and process for making articles of the same includes a thermoplastic matrix that includes a resin and filler materials wherein the filler materials includes a combination of fibers, at least one lubricant, and thermally conductive material, for improving tribological performance of thermoplastic materials. In the alternative, a thermally conductive lubricant may be substituted for the combination of the lubricant and the thermally conductive material.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: April 16, 2002
    Assignee: Caterpillar Inc.
    Inventor: Kristy J. Johnson
  • Tribological performance of thermoplastic composites via thermally conductive material and other fillers and a process for making the composite and molded articles of the same
    Publication number: 20020028869
    Abstract: This thermoplastic composition and process for making articles of the same includes a thermoplastic matrix that includes a resin and filler materials wherein the filler materials includes a combination of fibers, at least one lubricant, and thermally conductive material, for improving tribological performance of thermoplastic materials. In the alternative, a thermally conductive lubricant may be substituted for the combination of the lubricant and the thermally conductive material.
    Type: Application
    Filed: May 1, 2001
    Publication date: March 7, 2002
    Inventor: Kristy J. Johnson
  • Tribological performance of thermoplastic composites via thermally conductive material and other fillers and a process for making the composite and molded articles of the same
    Patent number: 6228310
    Abstract: This thermoplastic composition and process for making articles of the same includes a thermoplastic matrix that includes a resin and filler materials wherein the filler materials includes a combination of fibers, at least one lubricant, and thermally conductive material, for improving tribological performance of thermoplastic materials. In the alternative, a thermally conductive lubricant may be substituted for the combination of the lubricant and the thermally conductive material.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: May 8, 2001
    Assignee: Caterpillar Inc.
    Inventor: Kristy J. Johnson
  • Tribological performance of thermoplastic composite via thermally conductive material and other fillers and a process for making the composite and molded articles of the same
    Patent number: 6191204
    Abstract: This thermoplastic composition and process for making articles of the same includes a thermoplastic matrix that includes a resin and filler materials wherein the filler materials includes a combination of fibers, at least one lubricant, and thermally conductive material, for improving tribological performance of thermoplastic materials. In the alternative, a thermally conductive lubricant may be substituted for the combination of the lubricant and the thermally conductive material.
    Type: Grant
    Filed: June 25, 1998
    Date of Patent: February 20, 2001
    Assignee: Caterpillar Inc.
    Inventor: Kristy J. Johnson
  • Controlled leakage rotating seal ring with elements for receiving and holding a lubricant on a face thereof
    Patent number: 6189896
    Abstract: A seal ring mountable to a rotating member for rotation therewith, the seal ring including a gap or other feature providing controlled leakage therethrough, a radial inner circumferential face, an opposite radial outer circumferential face, and at least one axial end face extending between the inner circumferential face and the outer circumferential face, wherein at least one face includes elements for receiving and holding a lubricant for providing lubrication between the face and a surface located in opposing relation thereto during rotation of the seal ring relative to the surface.
    Type: Grant
    Filed: April 8, 1999
    Date of Patent: February 20, 2001
    Assignee: Caterpillar Inc.
    Inventors: Alan M. Dickey, Kristy J. Johnson, David K. Perry