Patents by Inventor Leonard Theodore McElhose

Leonard Theodore McElhose 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).

  • Environmental control systems including electric motor assemblies and methods of operation
    Patent number: 11815279
    Abstract: Described herein is an electric motor assembly for an environmental control system. The electric motor assembly includes a fan configured to rotate to circulate air within a controlled environment chamber of the environmental control system, and an electric motor coupled to the fan and configured to rotate the fan. The electric motor includes a motor controller configured to receive a braking control signal from a sensor associated with the controlled environment chamber. The braking control signal indicates an entrance to the controlled environment chamber is about to be opened. The motor controller is also configured to initiate braking the electric motor in response to receiving the braking control signal.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: November 14, 2023
    Assignee: Regal Beloit America, Inc.
    Inventors: Ludovic Andre Chretien, Leonard Theodore McElhose, Mohamad Khalil Dahouk, Paul Steven Mullin
  • ENVIRONMENTAL CONTROL SYSTEMS INCLUDING ELECTRIC MOTOR ASSEMBLIES AND METHODS OF OPERATION
    Publication number: 20210381718
    Abstract: Described herein is an electric motor assembly for an environmental control system. The electric motor assembly includes a fan configured to rotate to circulate air within a controlled environment chamber of the environmental control system, and an electric motor coupled to the fan and configured to rotate the fan. The electric motor includes a motor controller configured to receive a braking control signal from a sensor associated with the controlled environment chamber. The braking control signal indicates an entrance to the controlled environment chamber is about to be opened. The motor controller is also configured to initiate braking the electric motor in response to receiving the braking control signal.
    Type: Application
    Filed: June 3, 2020
    Publication date: December 9, 2021
    Inventors: Ludovic Andrew Chretien, Leonard Theodore McElhose, Mohammad Khalil Dahouk, Paul Steven Mullin
  • Axial flux electrical motor assembly and methods of assembling the same
    Patent number: 10985639
    Abstract: A method of assembling an electric motor includes coupling a rotor hub to a rotor disk to form a rotor assembly and slidably coupling the rotor hub to a shaft at a first position. The method also includes coupling a stator assembly to the shaft to define a first axial gap between the stator assembly and the rotor assembly. The method further includes sliding the rotor assembly to a second position along the shaft to define a second axial gap between the stator assembly and the rotor assembly. The second position is based on a measured back EMF constant of the electric motor when the rotor assembly is in the second position.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: April 20, 2021
    Assignee: REGAL BELOIT AMERICA, INC.
    Inventors: Leonard Theodore McElhose, Paul Steven Mullin
  • AXIAL FLUX ELECTRICAL MOTOR ASSEMBLY AND METHODS OF ASSEMBLING THE SAME
    Publication number: 20200287451
    Abstract: A method of assembling an electric motor includes coupling a rotor hub to a rotor disk to form a rotor assembly and slidably coupling the rotor hub to a shaft at a first position. The method also includes coupling a stator assembly to the shaft to define a first axial gap between the stator assembly and the rotor assembly. The method further includes sliding the rotor assembly to a second position along the shaft to define a second axial gap between the stator assembly and the rotor assembly. The second position is based on a measured back EMF constant of the electric motor when the rotor assembly is in the second position.
    Type: Application
    Filed: March 8, 2019
    Publication date: September 10, 2020
    Inventors: Leonard Theodore McElhose, Paul Steven Mullin