Patents by Inventor Christopher K. Hoadley

Christopher K. Hoadley 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).

  • Implement control system based on input position and velocity
    Patent number: 7729833
    Abstract: A hydraulic control system for a machine having a work implement is disclosed. The hydraulic control system has a fluid actuator configured to move the work implement. The control system also has an operator interface device configured to generate at least one signal in response to a movement of the operator interface device. The control system further has a valve assembly for controllably providing hydraulic fluid flow to the fluid actuator to affect movement of the fluid actuator. The hydraulic control system has a controller configured to communicate with the valve assembly and the operator interface device. The controller is also configured to receive a signal, determine a velocity input associated with the movement of the operator interface device based on the received signal, and determine a desired fluid actuator velocity based on the determined velocity input.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: June 1, 2010
    Assignee: Caterpillar Inc.
    Inventors: Chad T. Brickner, Christopher K. Hoadley, Brett J. Janson
  • Implement control system based on input position and velocity
    Publication number: 20080065297
    Abstract: A hydraulic control system for a machine having a work implement is disclosed. The hydraulic control system has a fluid actuator configured to move the work implement. The control system also has an operator interface device configured to generate at least one signal in response to a movement of the operator interface device. The control system further has a valve assembly for controllably providing hydraulic fluid flow to the fluid actuator to affect movement of the fluid actuator. The hydraulic control system has a controller configured to communicate with the valve assembly and the operator interface device. The controller is also configured to receive a signal, determine a velocity input associated with the movement of the operator interface device based on the received signal, and determine a desired fluid actuator velocity based on the determined velocity input.
    Type: Application
    Filed: September 11, 2006
    Publication date: March 13, 2008
    Inventors: Chad T. Brickner, Christopher K. Hoadley, Brett J. Janson