Patents by Inventor Keith M. Klosterman

Keith M. Klosterman 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).

  • Publication number: 20240120801
    Abstract: An electric motor includes a rotor assembly including a rotor shaft and a stator assembly including a plurality of stator segments. Each stator segment includes a core, an insulator at least partially covering the core and including a mounting portion, and a coil winding including a wire lead. The plurality of stator segments include a first stator segment and a second stator segment adjacent the first stator segment in a circumferential direction. The electric motor also includes a printed circuit board assembly coupled to the mounting portions and configured to direct electric current to each coil winding. The printed circuit board assembly includes a plurality of peripheral slots formed at intervals about a periphery thereof. The wire leads are received into the peripheral slots and soldered to electrically connect the wire leads to the printed circuit board assembly.
    Type: Application
    Filed: December 20, 2023
    Publication date: April 11, 2024
    Inventors: Keith M. KLOSTERMAN, Matthew R. BAILEY, Jorge L. IBARRA, Lu YANG, Hongru HUANG
  • Publication number: 20240063679
    Abstract: Power tools described herein include a housing, a brushless direct current (DC) motor, a non-conductive terminal mount, and a plurality of terminals. The housing has a motor housing portion, a handle portion, and a battery pack interface. The brushless DC motor is located within the motor housing portion and has a rotor and a stator. The non-conductive terminal mount is located on an outer peripheral surface of the stator and includes an angled surface. The angled surface is not substantially parallel to a longitudinal axis of the motor. The plurality of terminals is mounted on the angled surface of the terminal mount. Each of the terminals is angled in a first direction such that the terminals are not substantially parallel to the longitudinal axis of the motor.
    Type: Application
    Filed: November 1, 2023
    Publication date: February 22, 2024
    Inventors: Matthew R. Bailey, Keith M. Klosterman, Keith Boulanger, Jeffrey C. Hessenberger, Andrew T. Beyerl, Jorge L. Ibarra
  • Patent number: 11894755
    Abstract: A power tool includes a housing and an electric motor. The electric motor includes a rotor assembly including a rotor shaft and a stator assembly including a plurality of stator segments. Each stator segment includes a core, an insulator at least partially covering the core, and a coil winding. The insulator includes a mounting portion. The electric motor also includes a printed circuit board assembly configured to direct electric current to each coil winding, and a bus bar assembly attached to at least one of the mounting portions and configured to electrically connect the coil windings to the printed circuit board assembly. The bus bar assembly includes a molded body and a plurality of conductors. The bus bar assembly defines a bearing pocket. The electric motor further includes rotor bearing that is received into the bearing pocket and that supports the rotor shaft for rotation relative to the stator assembly.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: February 6, 2024
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: Keith M. Klosterman, Matthew R. Bailey, Jorge L. Ibarra, Lu Yang, Hongru Huang
  • Patent number: 11811287
    Abstract: Power tools described herein include a housing, a brushless direct current (DC) motor, a non-conductive terminal mount, and a plurality of terminals. The housing has a motor housing portion, a handle portion, and a battery pack interface. The brushless DC motor is located within the motor housing portion and has a rotor and a stator. The non-conductive terminal mount is located on an outer peripheral surface of the stator and includes an angled surface. The angled surface is not substantially parallel to a longitudinal axis of the motor. The plurality of terminals is mounted on the angled surface of the terminal mount. Each of the terminals is angled in a first direction such that the terminals are not substantially parallel to the longitudinal axis of the motor.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: November 7, 2023
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Matthew R. Bailey, Keith M. Klosterman, Keith Boulanger, Jeffrey C. Hessenberger, Andrew T. Beyerl, Gerald A. Zucca
  • Publication number: 20230291247
    Abstract: The disclosure provides, in one aspect, an electric motor comprising a stator and a rotor assembly including a rotor body and a pinion gear integrally formed as a single piece with the rotor body.
    Type: Application
    Filed: March 10, 2023
    Publication date: September 14, 2023
    Inventors: Keith BOULANGER, Anthony E. BREITBACH, Keith M. KLOSTERMAN, Jorge L. IBARRA
  • Publication number: 20230067680
    Abstract: A power tool includes a housing and an electric motor. The electric motor includes a rotor assembly including a rotor shaft and a stator assembly including a plurality of stator segments. Each stator segment includes a core, an insulator at least partially covering the core, and a coil winding. The insulator includes a mounting portion. The electric motor also includes a printed circuit board assembly configured to direct electric current to each coil winding, and a bus bar assembly attached to at least one of the mounting portions and configured to electrically connect the coil windings to the printed circuit board assembly. The bus bar assembly includes a molded body and a plurality of conductors. The bus bar assembly defines a bearing pocket. The electric motor further includes rotor bearing that is received into the bearing pocket and that supports the rotor shaft for rotation relative to the stator assembly.
    Type: Application
    Filed: August 25, 2022
    Publication date: March 2, 2023
    Inventors: Keith M. KLOSTERMAN, Matthew R. BAILEY, Jorge L. IBARRA, Lu YANG, Hongru HUANG
  • Publication number: 20210384793
    Abstract: Power tools described herein include a housing, a brushless direct current (DC) motor, a non-conductive terminal mount, and a plurality of terminals. The housing has a motor housing portion, a handle portion, and a battery pack interface. The brushless DC motor is located within the motor housing portion and has a rotor and a stator. The non-conductive terminal mount is located on an outer peripheral surface of the stator and includes an angled surface. The angled surface is not substantially parallel to a longitudinal axis of the motor. The plurality of terminals is mounted on the angled surface of the terminal mount. Each of the terminals is angled in a first direction such that the terminals are not substantially parallel to the longitudinal axis of the motor.
    Type: Application
    Filed: June 4, 2021
    Publication date: December 9, 2021
    Inventors: Matthew R. Bailey, Keith M. Klosterman, Keith Boulanger, Jeffrey C. Hessenberger, Andrew T. Beyerl, Gerald A. Zucca