Patents by Inventor John Feitl

John Feitl 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).

  • Integrated ball screw linear actuator
    Patent number: 11441648
    Abstract: A linear actuation screw having a first end portion, a second end portion on an opposite side as the first end portion, and a sloping intermediate portion between the first end portion and second end portion. The first end portion has a threaded outer wall having a generally constant first diameter over at least a portion of its length and is configured to advance a nut or a sliding member along at least a portion of the first end portion. The second end portion has a threaded outer wall having a generally constant second diameter that is different from the first diameter and is configured to receive a motor fastening nut around it in order to secure the linear actuation screw to a motor. The sloping intermediate portion includes an outer wall that is generally smooth and continuous over at least a majority of the area of the outer wall.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: September 13, 2022
    Assignee: NSK Americas, Inc.
    Inventors: John Feitl, Koichi Morita, Takashi Kataoka
  • INTEGRATED BALL SCREW LINEAR ACTUATOR
    Publication number: 20210048319
    Abstract: A linear actuation screw having a first end portion, a second end portion on an opposite side as the first end portion, and a sloping intermediate portion between the first end portion and second end portion. The first end portion has a threaded outer wall having a generally constant first diameter over at least a portion of its length and is configured to advance a nut or a sliding member along at least a portion of the first end portion. The second end portion has a threaded outer wall having a generally constant second diameter that is different from the first diameter and is configured to receive a motor fastening nut around it in order to secure the linear actuation screw to a motor. The sloping intermediate portion includes an outer wall that is generally smooth and continuous over at least a majority of the area of the outer wall.
    Type: Application
    Filed: October 23, 2020
    Publication date: February 18, 2021
    Inventors: John Feitl, Koichi Morita, Takashi Kataoka
  • Integrated ball screw linear actuator
    Patent number: 10816067
    Abstract: A linear actuation screw having a first end portion, a second end portion on an opposite side as the first end portion, and a sloping intermediate portion between the first end portion and second end portion. The first end portion has a threaded outer wall having a generally constant first diameter over at least a portion of its length and is configured to advance a nut or a sliding member along at least a portion of the first end portion. The second end portion has a threaded outer wall having a generally constant second diameter that is different from the first diameter and is configured to receive a motor fastening nut around it in order to secure the linear actuation screw to a motor. The sloping intermediate portion includes an outer wall that is generally smooth and continuous over at least a majority of the area of the outer wall.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: October 27, 2020
    Assignee: NSK Americas, Inc.
    Inventors: John Feitl, Koichi Morita, Takashi Kataoka
  • INTEGRATED BALL SCREW LINEAR ACTUATOR
    Publication number: 20190107186
    Abstract: A linear actuation screw having a first end portion, a second end portion on an opposite side as the first end portion, and a sloping intermediate portion between the first end portion and second end portion. The first end portion has a threaded outer wall having a generally constant first diameter over at least a portion of its length and is configured to advance a nut or a sliding member along at least a portion of the first end portion. The second end portion has a threaded outer wall having a generally constant second diameter that is different from the first diameter and is configured to receive a motor fastening nut around it in order to secure the linear actuation screw to a motor. The sloping intermediate portion includes an outer wall that is generally smooth and continuous over at least a majority of the area of the outer wall.
    Type: Application
    Filed: March 23, 2017
    Publication date: April 11, 2019
    Inventors: John Feitl, Koichi Morita, Takashi Kataoka