Patents by Inventor Bradly Glen Duffer

Bradly Glen Duffer 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).

  • System for detecting failure of an articulated steering mechanism
    Patent number: 11745552
    Abstract: A machine includes a frame and an oscillating hitch. A first cylinder couples to a first side of the oscillating hitch and a first side of the frame. A second cylinder couples to a second side of the oscillating hitch and a second side of the frame. A first isolating mechanism couples to the first cylinder and rotates in response to a first rotation of the first cylinder relative to the frame or the oscillating hitch. A first angle sensor senses a first angular displacement of the first isolating mechanism about a first rotational axis. A second isolating mechanism couples to the second cylinder and rotates in response to a second rotation of the second cylinder relative to the frame or the oscillating hitch. A second angle sensor senses a second angular displacement of the second isolating mechanism about a second rotational axis.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: September 5, 2023
    Assignee: Caterpillar Inc.
    Inventors: John James Krone, Daniel Peter Sergison, Edward William Mate, Jeremy T. Peterson, Bradly Glen Duffer, Matthew Stephen Marquette
  • SYSTEM FOR DETECTING FAILURE OF AN ACKERMAN-TYPE STEERING MECHANISM
    Publication number: 20220266905
    Abstract: A machine includes a frame, a first steering arm, a second steering arm, a first hydraulic actuator coupled to the frame and the first steering arm, and a second hydraulic actuator coupled to the frame and the second steering arm. A first angle sensor measures a rotational displacement of the first hydraulic actuator relative to the first steering arm. A first link couples the first hydraulic actuator and the first sensor, and isolates movements other than the first rotational displacement. A second angle sensor measures a second rotational displacement of the second hydraulic actuator relative to the second steering arm. A second link couples the second hydraulic actuator and the second sensor, and isolates movements other than the second rotational displacement.
    Type: Application
    Filed: February 19, 2021
    Publication date: August 25, 2022
    Applicant: Caterpillar Inc.
    Inventors: John James Krone, Daniel Peter Sergison, Edward William Mate, Jeremy T. Peterson, Bradly Glen Duffer, Matthew Stephen Marquette
  • SYSTEM FOR DETECTING FAILURE OF AN ARTICULATED STEERING MECHANISM
    Publication number: 20220266642
    Abstract: A machine includes a frame and an oscillating hitch. A first cylinder couples to a first side of the oscillating hitch and a first side of the frame. A second cylinder couples to a second side of the oscillating hitch and a second side of the frame. A first isolating mechanism couples to the first cylinder and rotates in response to a first rotation of the first cylinder relative to the frame or the oscillating hitch. A first angle sensor senses a first angular displacement of the first isolating mechanism about a first rotational axis. A second isolating mechanism couples to the second cylinder and rotates in response to a second rotation of the second cylinder relative to the frame or the oscillating hitch. A second angle sensor senses a second angular displacement of the second isolating mechanism about a second rotational axis.
    Type: Application
    Filed: February 19, 2021
    Publication date: August 25, 2022
    Applicant: Caterpillar Inc.
    Inventors: John James Krone, Daniel Peter Sergison, Edward William Mate, Jeremy T. Peterson, Bradly Glen Duffer, Matthew Stephen Marquette