Patents by Inventor James W. Ziemer

James W. Ziemer 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).

  • Mode switching for a centrifugal compressor
    Patent number: 12009763
    Abstract: The technologies described and recited herein pertain to a permanent magnet motor having multiple voltage taps so that the motor may run in multiple configurations, e.g., a low-range and a high-range, and have multiple optimal operating points.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: June 11, 2024
    Assignee: TRANE INTERNATIONAL INC.
    Inventors: Benjamin J. Sykora, Petri J. Mäki-Ontto, James W. Ziemer, Matthew A. Shepeck
  • MODE SWITCHING FOR A CENTRIFUGAL COMPRESSOR
    Publication number: 20240088810
    Abstract: The technologies described and recited herein pertain to a permanent magnet motor having multiple voltage taps so that the motor may run in multiple configurations, e.g., a low-range and a high-range, and have multiple optimal operating points.
    Type: Application
    Filed: April 22, 2022
    Publication date: March 14, 2024
    Inventors: Benjamin J. Sykora, Petri J. Mäki-Ontto, James W. Ziemer, Matthew A. Shepeck
  • Mode switching for a centrifugal compressor
    Patent number: 11770087
    Abstract: The technologies described and recited herein pertain to a permanent magnet motor having multiple voltage taps so that the motor may run in multiple configurations, e.g., a low-range and a high-range, and have multiple optimal operating points.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: September 26, 2023
    Assignee: TRANE INTERNATIONAL INC.
    Inventors: Benjamin J. Sykora, Petri J. Mäki-Ontto, James W. Ziemer, Matthew A. Shepeck
  • MODE SWITCHING FOR A CENTRIFUGAL COMPRESSOR
    Publication number: 20220345062
    Abstract: The technologies described and recited herein pertain to a permanent magnet motor having multiple voltage taps so that the motor may run in multiple configurations, e.g., a low-range and a high-range, and have multiple optimal operating points.
    Type: Application
    Filed: April 23, 2021
    Publication date: October 27, 2022
    Inventors: Benjamin J. Sykora, Petri J. Mäki-Ontto, James W. Ziemer, Matthew A. Shepeck