Patents by Inventor Justin Keiffer

Justin Keiffer 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).

  • Supercharger
    Patent number: 11603791
    Abstract: A supercharger includes a rotor housing defining a pair of cylindrical chambers. A driving shaft bearing is to support a driving rotor shaft for rotation in the rotor housing. A driven shaft bearing is to support a driven rotor shaft for rotation in the rotor housing. An oil sump housing is to enclose a timing gear end of the rotor housing. A shaft seal is disposed between the rotor housing and each respective rotor shaft. The oil sump housing, the rotor housing and driving and driven shaft seals define a closed container for oil to lubricate the driving shaft bearing, the driven shaft bearing, a driving timing gear and a driven timing gear. The oil pools in the closed container and a top surface of the oil is spaced below the timing gears when the driving rotor shaft is in a vertical orientation.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: March 14, 2023
    Assignee: Eaton Intelligent Power Limited
    Inventors: Daniel R. Ouwenga, Matthew M. Henry, Justin Keiffer, Kenneth A. Rienas
  • SUPERCHARGER
    Publication number: 20200102881
    Abstract: A supercharger includes a rotor housing defining a pair of cylindrical chambers. A driving shaft bearing is to support a driving rotor shaft for rotation in the rotor housing. A driven shaft bearing is to support a driven rotor shaft for rotation in the rotor housing. An oil sump housing is to enclose a timing gear end of the rotor housing. A shaft seal is disposed between the rotor housing and each respective rotor shaft. The oil sump housing, the rotor housing and driving and driven shaft seals define a closed container for oil to lubricate the driving shaft bearing, the driven shaft bearing, a driving timing gear and a driven timing gear. The oil pools in the closed container and a top surface of the oil is spaced below the timing gears when the driving rotor shaft is in a vertical orientation.
    Type: Application
    Filed: October 2, 2019
    Publication date: April 2, 2020
    Inventors: Daniel R. Ouwenga, Matthew M. Henry, Justin Keiffer, Kenneth A. Rienas
  • Supercharger
    Patent number: 10436104
    Abstract: A supercharger includes a rotor housing defining a pair of cylindrical chambers. A driving shaft bearing is to support a driving rotor shaft for rotation in the rotor housing. A driven shaft bearing is to support a driven rotor shaft for rotation in the rotor housing. An oil sump housing is to enclose a timing gear end of the rotor housing. A shaft seal is disposed between the rotor housing and each respective rotor shaft. The oil sump housing, the rotor housing and driving and driven shaft seals define a closed container for oil to lubricate the driving shaft bearing, the driven shaft bearing, a driving timing gear and a driven timing gear. The oil pools in the closed container and a top surface of the oil is spaced below the timing gears when the driving rotor shaft is in a vertical orientation.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: October 8, 2019
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Daniel R. Ouwenga, Matthew M. Henry, Justin Keiffer, Kenneth A. Rienas
  • SUPERCHARGER
    Publication number: 20150337716
    Abstract: A supercharger includes a rotor housing defining a pair of cylindrical chambers. A driving shaft bearing is to support a driving rotor shaft for rotation in the rotor housing. A driven shaft bearing is to support a driven rotor shaft for rotation in the rotor housing. An oil sump housing is to enclose a timing gear end of the rotor housing. A shaft seal is disposed between the rotor housing and each respective rotor shaft. The oil sump housing, the rotor housing and driving and driven shaft seals define a closed container for oil to lubricate the driving shaft bearing, the driven shaft bearing, a driving timing gear and a driven timing gear. The oil pools in the closed container and a top surface of the oil is spaced below the timing gears when the driving rotor shaft is in a vertical orientation.
    Type: Application
    Filed: May 20, 2015
    Publication date: November 26, 2015
    Inventors: Daniel R. Ouwenga, Matthew M. Henry, Justin Keiffer