Patents by Inventor David Allen Zach

David Allen Zach 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).

  • Patent number: 10370045
    Abstract: A work vehicle includes left and right track assemblies, each track assembly having a main frame, a pivot member, a pivot shaft coupled to the pivot member, and an electrical actuator coupled between the pivot shaft and the main frame. The work vehicle also includes a control system having a controller communicatively coupled to each electrical actuator of the track assemblies. The controller includes processors that control the electrical actuator to steer the work vehicle about a generally vertical steering axis. Each pivot member is mounted to the main frame of the track assemblies. Each track assembly is pivotal about a generally horizontal pitch axis of the pivot shaft to permit pitch movement of the track assembly. Each track assembly is pivotal about a generally horizontal camber axis through a portion of the pivot member to permit camber movement of the track assembly.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: August 6, 2019
    Assignee: CNH Industrial America LLC
    Inventors: Marvin A. Prickel, Shivakumar Prodduturi, Tom Lykken, David Allen Zach
  • Patent number: 10259513
    Abstract: An actuator assembly for an implement includes a pivot shaft configured to be received in a tubular member rigidly coupled to an implement frame, configured to pivot relative to the tubular member about a generally horizontal pitch axis, and configured to support a track assembly of the implement and to enable the track assembly to pivot about the generally horizontal pitch axis. The actuator assembly also includes an actuator anchor disposed on the pivot shaft. Further, the actuator assembly includes an actuator having a first longitudinal end and a second longitudinal end. The actuator is coupled to the actuator anchor at the first longitudinal end, and the actuator is configured to be coupled to a track assembly frame of the track assembly at the second longitudinal end. Moreover, the actuator is configured to extend and retract to pivotally steer the track assembly about a generally vertical steering axis.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: April 16, 2019
    Assignee: CNH Industrial America LLC
    Inventors: Marvin A. Prickel, Shivakumar Prodduturi, Tom Lykken, David Allen Zach
  • Publication number: 20190023333
    Abstract: A work vehicle includes left and right track assemblies, each track assembly having a main frame, a pivot member, a pivot shaft coupled to the pivot member, and an electrical actuator coupled between the pivot shaft and the main frame. The work vehicle also includes a control system having a controller communicatively coupled to each electrical actuator of the track assemblies. The controller includes processors that control the electrical actuator to steer the work vehicle about a generally vertical steering axis. Each pivot member is mounted to the main frame of the track assemblies. Each track assembly is pivotal about a generally horizontal pitch axis of the pivot shaft to permit pitch movement of the track assembly. Each track assembly is pivotal about a generally horizontal camber axis through a portion of the pivot member to permit camber movement of the track assembly.
    Type: Application
    Filed: July 19, 2017
    Publication date: January 24, 2019
    Inventors: Marvin A. Prickel, Shivakumar Prodduturi, Tom Lykken, David Allen Zach
  • Publication number: 20170291651
    Abstract: An actuator assembly for an implement includes a pivot shaft configured to be received in a tubular member rigidly coupled to an implement frame, configured to pivot relative to the tubular member about a generally horizontal pitch axis, and configured to support a track assembly of the implement and to enable the track assembly to pivot about the generally horizontal pitch axis. The actuator assembly also includes an actuator anchor disposed on the pivot shaft. Further, the actuator assembly includes an actuator having a first longitudinal end and a second longitudinal end. The actuator is coupled to the actuator anchor at the first longitudinal end, and the actuator is configured to be coupled to a track assembly frame of the track assembly at the second longitudinal end. Moreover, the actuator is configured to extend and retract to pivotally steer the track assembly about a generally vertical steering axis.
    Type: Application
    Filed: May 19, 2017
    Publication date: October 12, 2017
    Inventors: Marvin A. Prickel, Shivakumar Prodduturi, Tom Lykken, David Allen Zach
  • Patent number: 9688322
    Abstract: A work vehicle includes left and right track assemblies, each track assembly including a main frame, a pivot member, a pivot shaft coupled to the pivot member, and an actuator coupled between the pivot shaft and the main frame. Each track assembly is configured to permit pivotal steering movement, pivotal pitch movement, and pivotal camber movement. The actuator of each track assembly is coupled to the respective main frame at one end of the actuator, and at an opposite end of the actuator to an actuator anchor via a self-aligning bearing arrangement to permit transmission of steering forces while enabling pivotal movement of the respective track assembly.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: June 27, 2017
    Assignee: CNH Industrial America LLC
    Inventors: Marvin A. Prickel, Shivakumar Prodduturi, Tom Lykken, David Allen Zach
  • Patent number: 9682736
    Abstract: A work vehicle includes left and right track assemblies, each track assembly including a main frame, a pivot member, a pivot shaft coupled to the pivot member, and an actuator coupled between the pivot shaft and the main frame. Each pivot member is mounted to a respective main frame to permit pivotal steering movement about a generally vertical steering axis for steering the track assemblies under the influence of the actuator. Additionally, each track assembly is pivotal about a generally horizontal pitch axis of the respective pivot shaft to permit pitch movement of the respective track assembly. Each track assembly is also pivotal about a generally horizontal camber axis through a portion of the respective pivot member to permit camber movement of the respective track assembly.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: June 20, 2017
    Assignee: CNH Industrial America LLC
    Inventors: Marvin A. Prickel, Michael J. Connors, Tom Lykken, David Allen Zach