Patents by Inventor Timonthy J. Schlack

Timonthy J. Schlack 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 controlling the operation of an electric winch
    Patent number: 11414309
    Abstract: A system for controlling operation of a winch assembly having an electric motor, a drum, and a cable. A controller is configured to access a winch load threshold, with the winch load threshold defining a hold zone and a reel zone, and one of the hold zone and the reel zone including loads greater than the winch load threshold and another of the hold zone and the reel zone including loads less than the winch load threshold. The controller is further configured to determine whether the drum is rotating, determine whether the winch assembly is operating within the hold zone or the reel zone, generate a hold current while the winch assembly is operating within the hold zone preventing rotation of the electric motor, and generate a reel current while the drum is operating within the reel zone permitting rotation of the electric motor.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: August 16, 2022
    Assignee: Caterpillar Inc.
    Inventors: Andrew J. Kieser, Timonthy J. Schlack, Evan B. Stumpges, Derek S. Sorrells, Eric J. Verplaetse, Matthew O. Nafziger, Timothy L. Hand
  • System for Controlling the Operation of an Electric Winch
    Publication number: 20200189890
    Abstract: A system for controlling operation of a winch assembly having an electric motor, a drum, and a cable. A controller is configured to access a winch load threshold, with the winch load threshold defining a hold zone and a reel zone, and one of the hold zone and the reel zone including loads greater than the winch load threshold and another of the hold zone and the reel zone including loads less than the winch load threshold. The controller is further configured to determine whether the drum is rotating, determine whether the winch assembly is operating within the hold zone or the reel zone, generate a hold current while the winch assembly is operating within the hold zone preventing rotation of the electric motor, and generate a reel current while the drum is operating within the reel zone permitting rotation of the electric motor.
    Type: Application
    Filed: December 12, 2018
    Publication date: June 18, 2020
    Applicant: Caterpillar Inc.
    Inventors: Andrew J. Kieser, Timonthy J. Schlack, Evan B. Stumpges, Derek S. Sorrells, Eric J. Verplaetse, Matthew O. Nafziger, Timothy L. Hand