Patents by Inventor Paul Douglas Hagen

Paul Douglas Hagen 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).

  • Machine control system implementing speed-based clutch modulation
    Patent number: 8825323
    Abstract: A machine control system for use with a machine having a power source and a transmission is disclosed. The machine control system may have a clutch configured to connect an output of the power source with an input of the transmission. The machine control system may also have a sensor configured to generate a signal indicative of a speed of the power source, and a controller in communication with the clutch and the sensor. The controller may be configured to vary an actuating force of the clutch based on the signal.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: September 2, 2014
    Assignee: Caterpillar Inc.
    Inventors: Hong-Chin Lin, Michael A. Spielman, Jr., Paul Douglas Hagen
  • Machine control system implementing speed-based clutch modulation
    Publication number: 20090187318
    Abstract: A machine control system for use with a machine having a power source and a transmission is disclosed. The machine control system may have a clutch configured to connect an output of the power source with an input of the transmission. The machine control system may also have a sensor configured to generate a signal indicative of a speed of the power source, and a controller in communication with the clutch and the sensor. The controller may be configured to vary an actuating force of the clutch based on the signal.
    Type: Application
    Filed: January 23, 2008
    Publication date: July 23, 2009
    Inventors: Hong-Chin Lin, Michael A. Spielman, JR., Paul Douglas Hagen