Patents by Inventor Lawrence W. Bergquist

Lawrence W. Bergquist 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).

  • Active track-chain sag management systems for crawler vehicles
    Patent number: 11667342
    Abstract: An active track-chain sag management system for usage in conjunction with crawler vehicles having tracked undercarriages includes a movable track-engaging member positioned for physical engagement into a track-chain of the tracked undercarriage, an electric drive assembly controllable to adjust a track-tensioning position of the movable track-engaging member relative to the track-chain, and a controller operatively coupled to the electric drive assembly. The controller is configured to command the electric drive assembly to repeatedly adjust the track-chain sag of the track-chain by varying the track-tensioning position of the movable track-engaging member during operation of the tracked undercarriage.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: June 6, 2023
    Assignee: DEERE & COMPANY
    Inventors: Sean P. West, Reginald M. Bindl, Brian J. Althoff, Lawrence W. Bergquist, Russell R. Reeg
  • ACTIVE TRACK-CHAIN SAG MANAGEMENT SYSTEMS FOR CRAWLER VEHICLES
    Publication number: 20210101653
    Abstract: An active track-chain sag management system for usage in conjunction with crawler vehicles having tracked undercarriages includes a movable track-engaging member positioned for physical engagement into a track-chain of the tracked undercarriage, an electric drive assembly controllable to adjust a track-tensioning position of the movable track-engaging member relative to the track-chain, and a controller operatively coupled to the electric drive assembly. The controller is configured to command the electric drive assembly to repeatedly adjust the track-chain sag of the track-chain by varying the track-tensioning position of the movable track-engaging member during operation of the tracked undercarriage.
    Type: Application
    Filed: October 3, 2019
    Publication date: April 8, 2021
    Inventors: Sean P. West, Reginald M. Bindl, Brian J. Althoff, Lawrence W. Bergquist, Russell R. Reeg