Patents by Inventor Zachary J. Marshall

Zachary J. Marshall 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).

  • Axial flux electrical machine rotor with magnet retention device
    Patent number: 11955845
    Abstract: An axial flux motor incorporates a rotor having a plurality of pockets receiving magnet assemblies. A retention device is engaged from an inactive surface of at least one magnet assembly to one or more structural elements surrounding an associate one of the plurality of pockets in the rotor.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: April 9, 2024
    Assignee: LaunchPoint Electric Propulsion Solutions Inc.
    Inventors: Michael R. Ricci, David B. Paden, Brian J. Clark, Claire Cappe, Zachary J. Marshall, Bradley E. Paden
  • Modulated litz wire construction for high power-density motors
    Patent number: 11750054
    Abstract: A modulated litz wire wherein the braid of a litz wire is varied along its length such that bulkier sections are located at the end-turns of a motor, while more compact parallel stranded sections are located in stator slots or magnetic gaps. Variations may include parallel stranded sections replaced with a longitudinal twist for improved handling or improved current sharing in strands.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: September 5, 2023
    Assignee: LaunchPoint Electric Propulsion Solutions, Inc.
    Inventors: Bradley E. Paden, Michael R. Ricci, David B Paden, Brian J. Clark, Zachary J. Marshall
  • AXIAL FLUX ELECTRICAL MACHINE ROTOR WITH MAGNET RETENTION DEVICE
    Publication number: 20220115925
    Abstract: An axial flux motor incorporates a rotor having a plurality of pockets receiving magnet assemblies. A retention device is engaged from an inactive surface of at least one magnet assembly to one or more structural elements surrounding an associate one of the plurality of pockets in the rotor.
    Type: Application
    Filed: October 7, 2021
    Publication date: April 14, 2022
    Inventors: Michael R. Ricci, David B. Paden, Brian J. Clark, Claire Cappe, Zachary J. Marshall, Bradley E. Paden
  • MODULATED LITZ WIRE CONSTRUCTION FOR HIGH POWER-DENSITY MOTORS
    Publication number: 20210359564
    Abstract: A modulated litz wire wherein the braid of a litz wire is varied along its length such that bulkier sections are located at the end-turns of a motor, while more compact parallel stranded sections are located in stator slots or magnetic gaps. Variations may include parallel stranded sections replaced with a longitudinal twist for improved handling or improved current sharing in strands.
    Type: Application
    Filed: May 17, 2021
    Publication date: November 18, 2021
    Inventors: Bradley E. Paden, Michael R. Ricci, David B. Paden, Brian J. Clark, Zachary J. Marshall