Patents by Inventor Doran D. Hirschkorn

Doran D. Hirschkorn 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).

  • Carrier and backhoe control system and method
    Patent number: 8392075
    Abstract: A power machine includes a carrier comprising a supporting frame, an operator compartment and a joystick controller disposed in the operator compartment and configured to generate movement signals in response to operator movement of the joystick controller. An attachment is detachably coupled to the power machine. A carrier control unit is disposed on the carrier and configured to receive the movement signals from the joystick controller. An attachment control unit is disposed on the attachment and configured to control movement of the attachment. A network is coupled to the carrier control unit and to the attachment control unit and is configured to carry instructions from the carrier control unit to the attachment control unit. A state selection input is disposed in the operator compartment to select one of at least two operational states including a carrier state and an attachment state.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: March 5, 2013
    Assignee: Clark Equipment Company
    Inventors: Spencer L. Mindeman, Doran D. Hirschkorn, Christopher W. Lougheed, Phillip D. Bogner, Alvin A. Liebel
  • Carrier and Backhoe Control System and Method
    Publication number: 20090216412
    Abstract: A power machine includes a carrier comprising a supporting frame, an operator compartment and a joystick controller disposed in the operator compartment and configured to generate movement signals in response to operator movement of the joystick controller. An attachment is detachably coupled to the power machine. A carrier control unit is disposed on the carrier and configured to receive the movement signals from the joystick controller. An attachment control unit is disposed on the attachment and configured to control movement of the attachment. A network is coupled to the carrier control unit and to the attachment control unit and is configured to carry instructions from the carrier control unit to the attachment control unit. A state selection input is disposed in the operator compartment to select one of at least two operational states including a carrier state and an attachment state.
    Type: Application
    Filed: February 24, 2009
    Publication date: August 27, 2009
    Applicant: Clark Equipment Company
    Inventors: Spencer L. Mindeman, Doran D. Hirschkorn, Christopher W. Lougheed, Phillip D. Bogner, Alvin A. Liebel