Patents by Inventor David Bennett JOHNSON

David Bennett JOHNSON 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).

  • Systems and methods for electromagnetic shielding of rotating components
    Patent number: 11943905
    Abstract: An EMI attenuation device includes a housing stator, a fan rotor, and an electrical bridge therebetween. The housing stator has an aperture therethrough, and at least a portion of the housing stator is electrically conductive. The fan rotor is adjacent to the aperture and has a rotational axis relative to the housing stator and a proximate surface proximate the housing stator. The fan rotor is electrically conductive, and the proximate surface is continuous around a rotational direction of the fan rotor. The electrical bridge is between the proximate surface of the fan rotor and a contact surface of the housing stator.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: March 26, 2024
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Jason A. Harrigan, David Bennett Johnson
  • SYSTEMS AND METHODS FOR ELECTROMAGNETIC SHIELDING OF ROTATING COMPONENTS
    Publication number: 20230232601
    Abstract: An EMI attenuation device includes a housing stator, a fan rotor, and an electrical bridge therebetween. The housing stator has an aperture therethrough, and at least a portion of the housing stator is electrically conductive. The fan rotor is adjacent to the aperture and has a rotational axis relative to the housing stator and a proximate surface proximate the housing stator. The fan rotor is electrically conductive, and the proximate surface is continuous around a rotational direction of the fan rotor. The electrical bridge is between the proximate surface of the fan rotor and a contact surface of the housing stator.
    Type: Application
    Filed: January 14, 2022
    Publication date: July 20, 2023
    Inventors: Jason A. HARRIGAN, David Bennett JOHNSON
  • SYSTEMS AND METHODS FOR ELECTROMAGNETIC SHIELDING OF THERMAL FIN PACKS
    Publication number: 20230200017
    Abstract: A thermal management device includes a fin pack and a plurality of channels. The fin pack has a hot side and a cold side, and the plurality of channels in the fin pack provide fluid communication from the hot side to the cold side. The channels have a transverse dimension and a longitudinal dimension, and the longitudinal dimension is at least 2.5 times the transverse dimension.
    Type: Application
    Filed: December 20, 2021
    Publication date: June 22, 2023
    Inventors: Jason A. HARRIGAN, David Bennett JOHNSON