Patents by Inventor Joseph Stephen Carnes

Joseph Stephen Carnes 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).

  • Drive circuit for electric motors
    Patent number: 10840830
    Abstract: A drive circuit for an electric pump motor is provided. The drive circuit includes an inverter and a contactor. The inverter is configured to supply variable frequency current to the electric motor. The contactor is configured to supply the line frequency current to the electric motor.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: November 17, 2020
    Assignee: Regal Beloit America, Inc
    Inventors: Ludovic Andre Chretien, Howard R. Richardson, Gregory Lewis Gross, Jevon D. Reynolds, Joseph Stephen Carnes, Zachary Joseph Stauffer, Justin Michael Magyar, Kenneth L. Osborne, Nathan E. Snell
  • Drive circuit for electric motors
    Patent number: 10630219
    Abstract: A drive circuit for an electric motor includes a first filter, a rectifier, an inverter, and a line contactor. The first filter is configured to be coupled to an AC source and produces a filtered line frequency AC signal. The rectifier is coupled to the filter and produces a DC signal from the filtered line frequency AC signal. The inverter is coupled to the rectifier and produces an AC signal on an output node of the inverter. The AC signal is supplied to the electric motor to energize its stator windings. The line contactor is coupled between an output node of the first filter and the output node of the inverter. The line contactor supplies the output node of the inverter directly with the filtered line frequency AC signal to energize the stator windings when the inverter is disabled.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: April 21, 2020
    Assignee: REGAL BELOIT AMERICA, INC.
    Inventors: Ludovic Andre Chretien, Joseph Stephen Carnes
  • DRIVE CIRCUIT FOR ELECTRIC MOTORS
    Publication number: 20200044583
    Abstract: A drive circuit for an electric pump motor is provided. The drive circuit includes an inverter and a contactor. The inverter is configured to supply variable frequency current to the electric motor. The contactor is configured to supply the line frequency current to the electric motor.
    Type: Application
    Filed: April 3, 2018
    Publication date: February 6, 2020
    Inventors: Ludovic Andre Chretien, Howard R. Richardson, Gregory Lewis Gross, Jevon D. Reynolds, Joseph Stephen Carnes, Zachary Joseph Stauffer, Justin Michael Magyar, Kenneth L. Osborne, Nathan E. Snell
  • DRIVE CIRCUIT FOR ELECTRIC MOTORS
    Publication number: 20190305708
    Abstract: A drive circuit for an electric motor includes a first filter, a rectifier, an inverter, and a line contactor. The first filter is configured to be coupled to an AC source and produces a filtered line frequency AC signal. The rectifier is coupled to the filter and produces a DC signal from the filtered line frequency AC signal. The inverter is coupled to the rectifier and produces an AC signal on an output node of the inverter. The AC signal is supplied to the electric motor to energize its stator windings. The line contactor is coupled between an output node of the first filter and the output node of the inverter. The line contactor supplies the output node of the inverter directly with the filtered line frequency AC signal to energize the stator windings when the inverter is disabled.
    Type: Application
    Filed: April 3, 2018
    Publication date: October 3, 2019
    Inventors: Ludovic Andre Chretien, Joseph Stephen Carnes