Patents by Inventor David M. Saxton

David M. Saxton 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: 11466728
    Abstract: A bearing including a backing formed of a steel material, a lining formed of aluminum or an aluminum alloy, and a diffusion barrier layer disposed between the backing and the lining is provided. The diffusion barrier layer is formed of nickel or a nickel alloy and has a thickness ranging from 1 micron to 100 microns. The bearing is typically formed by cladding the lining or plating the steel backing with the diffusion barrier layer, bonding the lining and the backing with the diffusion barrier layer between, heating to a temperature of at least 400° C., and forming the bearing into a shape after or before the heating step.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: October 11, 2022
    Assignee: Tenneco Inc.
    Inventor: David M. Saxton
  • Patent number: 10968950
    Abstract: A sliding bearing includes a bearing surface which comprises a material in which an alloy material based on CuSnX (0.01<X<9), CuNi2Si, or CuFe2P is used. A method for producing such a sliding bearing and a use for CuNi2Si, CuFe2P, and CuSnX in a sliding bearing is also provided.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: April 6, 2021
    Assignee: Federal-Mogul Wiesbaden Gmbh
    Inventors: Holger Schmitt, Daniel Meister, David M. Saxton
  • Patent number: 10508322
    Abstract: The invention relates to a copper alloy such as, for example, CuNi6Sn5Fe2P0.15, which has hard particles such as, for example, Fe3P or Fe2P and optionally solid lubricants such as, for example, hexagonal boron nitrides or graphite. The invention further relates to the use of said copper alloy for a bearing and to a bearing having said copper alloy. The invention further relates to a method for producing a bearing having a copper alloy, wherein a metal powder is produced, for example, by means of melt atomization, hard particles and optional solid lubricants are optionally added to said powder, and the powder is sintered onto a substrate. Finally, the invention relates to an alternative method for producing a bearing, wherein the copper alloy is applied to a substrate by means of casting or plating or wherein the bearing is made completely of the copper alloy.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: December 17, 2019
    Assignee: Federal-Mogul Wiesbaden GmbH
    Inventors: Holger Schmitt, Daniel Meister, David M. Saxton
  • Publication number: 20190293114
    Abstract: A bearing including a backing formed of a steel material, a lining formed of aluminum or an aluminum alloy, and a diffusion barrier layer disposed between the backing and the lining is provided. The diffusion barrier layer is formed of nickel or a nickel alloy and has a thickness ranging from 1 micron to 100 microns. The bearing is typically formed by cladding the lining or plating the steel backing with the diffusion barrier layer, bonding the lining and the backing with the diffusion barrier layer between, heating to a temperature of at least 400° C., and forming the bearing into a shape after or before the heating step.
    Type: Application
    Filed: March 21, 2018
    Publication date: September 26, 2019
    Inventor: David M. SAXTON
  • Publication number: 20160102386
    Abstract: The invention relates to a copper alloy such as, for example, CuNi6Sn5Fe2P0.15, which has hard particles such as, for example, Fe3P or Fe2P and optionally solid lubricants such as, for example, hexagonal boron nitrides or graphite. The invention further relates to the use of said copper alloy for a bearing and to a bearing having said copper alloy. The invention further relates to a method for producing a bearing having a copper alloy, wherein a metal powder is produced, for example, by means of melt atomization, hard particles and optional solid lubricants are optionally added to said powder, and the powder is sintered onto a substrate. Finally, the invention relates to an alternative method for producing a bearing, wherein the copper alloy is applied to a substrate by means of casting or plating or wherein the bearing is made completely of the copper alloy.
    Type: Application
    Filed: May 8, 2014
    Publication date: April 14, 2016
    Inventors: HOLGER SCHMITT, DANIEL MEISTER, DAVID M. SAXTON
  • Publication number: 20140363570
    Abstract: A sliding bearing includes a bearing surface which comprises a material in which an alloy material based on CuSnX (0.01<X<9), CuNi2Si, or CuFe2P is used. A method for producing such a sliding bearing and a use for CuNi2Si, CuFe2P, and CuSnX in a sliding bearing is also provided.
    Type: Application
    Filed: November 29, 2012
    Publication date: December 11, 2014
    Applicant: Federal-Mogul Wiesbaden GmbH
    Inventors: Holger Schmitt, Daniel Meister, David M. Saxton
  • Patent number: 8703660
    Abstract: The invention relates to a lead-free sliding bearing material having a Cu-based or CuSn-based sintered matrix and a solid lubricant. The solid lubricant contains hexagonal boron nitride in a fine-grained distribution with a mean particle size of 10 ?m or less, wherein agglomerates of the particles of hexagonal boron nitride are not greater than 200 ?m. The invention also relates to a sintering powder for producing the sliding bearing material, a sliding bearing composite material having a steel protective layer and a bearing layer composed of such a sintered-on sliding bearing material. The invention also relates to a sliding element composed of a sliding bearing composite material of the type mentioned above.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: April 22, 2014
    Assignee: Federal-Mogul Wiesaden GmbH
    Inventors: Holger Schmitt, Thomas Enghof, David M. Saxton
  • Patent number: 8679641
    Abstract: A bearing having improved wear resistance has a bearing material of a copper-tin-bismuth alloy which may also include phosphorus which has excellent strength, due to the solid solution of copper, tin and phosphorus (when used), attached to a steel backing shell. The material also has good lubricity as a result of the presence of the bismuth which also promotes tin mobilization and formation of a layer of tin on the bearing surface upon use of the bearing. The addition of small amounts of relatively small hard particles in the copper-tin-matrix, particularly Fe3P, MoSi2 or a mixture thereof, provides a suitable hard surface artifact to improve the wear resistance of the bearing material. The bearing includes a sintered powder compact bearing material of a copper-tin-bismuth alloy powder and a metal compound powder which is bonded to a steel backing shell, wherein the metal compound powder has an average particle size of less than 10 ?m.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: March 25, 2014
    Inventors: David M. Saxton, James M. Carpenter, Gregory W. Sevenski, Holger Schmitt, Gerd Andler
  • Publication number: 20090202855
    Abstract: A bearing material including a Cu—Sn—Bi alloy layer and method of construction thereof is provided. The alloy layer has a porosity ranging from about 2% to about 10%. A majority of the porosity has pores separate and out of direct communication with one another such that the pores are not interconnected with one another. The alloy layer can be sintered to a metal backing layer, and can be shaped as desired for an intended bearing application.
    Type: Application
    Filed: January 8, 2009
    Publication date: August 13, 2009
    Inventors: David M. Saxton, Eric Konieczny, Robert Sturk
  • Publication number: 20080166578
    Abstract: A bearing having improved wear resistance has a bearing material of a copper-tin-bismuth alloy which may also include phosphorus which has excellent strength, due to the solid solution of copper, tin and phosphorus (when used), attached to a steel backing shell. The material also has good lubricity as a result of the presence of the bismuth which also promotes tin mobilization and formation of a layer of tin on the bearing surface upon use of the bearing. The addition of small amounts of relatively small hard particles in the copper-tin-matrix, particularly Fe3P, MoSi2 or a mixture thereof, provides a suitable hard surface artifact to improve the wear resistance of the bearing material. The bearing includes a sintered powder compact bearing material of a copper-tin-bismuth alloy powder and a metal compound powder which is bonded to a steel backing shell, wherein the metal compound powder has an average particle size of less than 10 ?m.
    Type: Application
    Filed: July 31, 2007
    Publication date: July 10, 2008
    Applicant: FEDERAL-MOGUL WORLD WIDE, INC.
    Inventors: David M. Saxton, James M. Carpenter, Gregory W. Sevenski, Holger Schmitt, Gerd Andler
  • Publication number: 20070243406
    Abstract: A sliding bearing includes a relatively soft first metallic material incorporated into a matrix of a relatively harder second metallic material. The first material is soluble in the second material. Particles of the first material are coated with a protective barrier coating to protect the first material from dissolving in the second material during processing and thereby yielding discrete secondary phases of the first material within the matrix of the second material. The first material may comprise tin or bismuth coated with a barrier coating of nickel within a copper-tin matrix of second material.
    Type: Application
    Filed: April 17, 2006
    Publication date: October 18, 2007
    Inventors: Carole L. Trybus, David M. Saxton