Patents by Inventor David J. Krus

David J. Krus 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: 11008645
    Abstract: The present disclosure relates to a method of applying a wear-resistant copper-nickel-tin coating to a substrate using a thermal spray process. Briefly, a copper-nickel-tin alloy feedstock is converted into a powder or droplet form, then sprayed onto a substrate to form a coating thereon.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: May 18, 2021
    Assignee: MATERION CORPORATION
    Inventors: Fritz C. Grensing, Robert E. Kusner, David J. Krus, William D. Nielsen, Karl Ziegler
  • Patent number: 10837554
    Abstract: A piston ring is made from a copper-containing alloy. This material permits the top compression ring of a piston to be moved closer to the piston crown, reducing crevice volume and reducing the tendency for pre-ignition. Ignition timing advance can be realized by installing the rings and letting the ECU advance the timing as the sensors allow, increasing efficiency. Also, shorter pistons and longer connecting rods are possible. The shorter pistons reduces the reciprocated mass in the engine and the longer connecting rods reduce the frictional loss caused by radial forces pushing the piston against the liner. Both reducing volume and tendency for pre-ignition increase engine efficiency.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: November 17, 2020
    Assignee: Materion Corporation
    Inventors: David J. Krus, Steffen Mack, Andrew J. Whitaker
  • Publication number: 20200232084
    Abstract: The present disclosure relates to a method of applying a wear-resistant copper-nickel-tin coating to a substrate using a thermal spray process. Briefly, a copper-nickel-tin alloy feedstock is converted into a powder or droplet form, then sprayed onto a substrate to form a coating thereon.
    Type: Application
    Filed: April 3, 2020
    Publication date: July 23, 2020
    Inventors: Fritz C. Grensing, Robert E. Kusner, David J. Krus, William D. Nielsen, Karl Ziegler
  • Patent number: 10626489
    Abstract: The present disclosure relates to a method of applying a wear-resistant copper-nickel-tin coating to a substrate using a thermal spray process. Briefly, a copper-nickel-tin alloy feedstock is converted into a powder or droplet form, then sprayed onto a substrate to form a coating thereon.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: April 21, 2020
    Assignee: MATERION CORPORATION
    Inventors: Fritz C. Grensing, Robert E. Kusner, David J. Krus, William D. Nielsen, Karl Ziegler
  • Publication number: 20180195612
    Abstract: A piston ring is made from a copper-containing alloy. This material permits the top compression ring of a piston to be moved closer to the piston crown, reducing crevice volume and reducing the tendency for pre-ignition. Ignition timing advance can be realized by installing the rings and letting the ECU advance the timing as the sensors allow, increasing efficiency. Also, shorter pistons and longer connecting rods are possible. The shorter pistons reduces the reciprocated mass in the engine and the longer connecting rods reduce the frictional loss caused by radial forces pushing the piston against the liner. Both reducing volume and tendency for pre-ignition increase engine efficiency.
    Type: Application
    Filed: December 15, 2017
    Publication date: July 12, 2018
    Inventors: David J. Krus, Steffen Mack, Andrew J. Whitaker
  • Publication number: 20180195613
    Abstract: A piston ring is made from a copper-beryllium alloy. This material permits the top compression ring of a piston to be moved closer to the piston crown, reducing crevice volume and reducing the tendency for pre-ignition. Ignition timing advance can be realized by installing the rings and letting the ECU advance the timing as the sensors allow, increasing efficiency. Also, shorter pistons and longer connecting rods are possible. The shorter pistons reduces the reciprocated mass in the engine and the longer connecting rods reduce the frictional loss caused by radial forces pushing the piston against the liner. Both reducing volume and tendency for pre-ignition increase engine efficiency.
    Type: Application
    Filed: December 15, 2017
    Publication date: July 12, 2018
    Inventors: David J. Krus, Steffen Mack, Robert E. Kusner, Chad A. Finkbeiner, Michael J. Gedeon, Anand V. Samant, Andrew J. Whitaker
  • Publication number: 20180112302
    Abstract: The present disclosure relates to a method of applying a wear-resistant copper-nickel-tin coating to a substrate using a thermal spray process. Briefly, a copper-nickel-tin alloy feedstock is converted into a powder or droplet form, then sprayed onto a substrate to form a coating thereon.
    Type: Application
    Filed: October 24, 2017
    Publication date: April 26, 2018
    Inventors: Fritz C. Grensing, Robert E. Kusner, David J. Krus, William D. Nielsen, Karl Ziegler