Patents by Inventor Michael J. Chadwick

Michael J. Chadwick 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).

  • Control system having variable-speed engine-drive fan
    Patent number: 8869523
    Abstract: A control system for use with a machine having an engine is disclosed. The control system may have a cooling circuit, a heat exchanger associated with the cooling circuit, and a sensor configured to generate a signal indicative of a temperature of the cooling circuit. The cooling system may also have a fan mechanically driven by the engine to direct air through the cooling circuit, and a controller in communication with the sensor and the engine. The controller may be configured to adjust a speed of the engine based on the signal.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: October 28, 2014
    Assignee: Caterpillar Inc.
    Inventors: Michael J. Chadwick, Jared P. Johnson, Gregory G. Hermann, Thomas G. Pusch
  • Implement control system for a machine
    Patent number: 8762010
    Abstract: This disclosure relates to a control system for a machine implement. The control system includes a measurement sensor configured to provide an implement measurement signal indicative of a velocity of a machine implement, and a controller. The controller is configured to provide an implement measurement signal and an operator command signal, and to determine an adjusted implement command based signal based on the implement measurement signal and the operator command signal.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 24, 2014
    Assignee: Caterpillar Inc.
    Inventors: Todd R. Farmer, Charles W. Grant, Gregory A. Epplin, Michael J. Chadwick, Joshua D. Callaway
  • Implement control system for a machine
    Patent number: 8700273
    Abstract: This disclosure relates to a control system for a machine. The control system includes a sensor configured to provide an implement measurement signal indicative of a velocity of a machine implement, and a controller. The controller is configured to receive the implement measurement signal, determine whether a main threshold condition is met, and to determine an adjusted implement command based at least in part on the implement measurement signal.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: April 15, 2014
    Assignee: Caterpillar Inc.
    Inventors: Todd R. Farmer, Charles W. Grant, Gregory A. Epplin, Michael J. Chadwick, Joshua D. Callaway
  • Implement control system for a machine
    Patent number: 8406963
    Abstract: This disclosure relates to a control system for a machine implement. The control system includes a measurement sensor configured to provide an implement measurement signal indicative of a velocity of a machine implement, and a controller. The controller is configured to provide an implement measurement signal and an operator command signal, and to determine an adjusted implement command based signal based on the implement measurement signal and the operator command signal.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: March 26, 2013
    Assignee: Caterpillar Inc.
    Inventors: Todd R. Farmer, Charles W. Grant, Gregory A. Epplin, Michael J. Chadwick, Joshua D. Callaway
  • CONTROL SYSTEM HAVING VARIABLE-SPEED ENGINE-DRIVE FAN
    Publication number: 20120260867
    Abstract: A control system for use with a machine having an engine is disclosed. The control system may have a cooling circuit, a heat exchanger associated with the cooling circuit, and a sensor configured to generate a signal indicative of a temperature of the cooling circuit. The cooling system may also have a fan mechanically driven by the engine to direct air through the cooling circuit, and a controller in communication with the sensor and the engine. The controller may be configured to adjust a speed of the engine based on the signal.
    Type: Application
    Filed: April 14, 2011
    Publication date: October 18, 2012
    Inventors: Michael J. Chadwick, Jared P. Johnson, Gregory G. Hermann, Thomas G. Pusch
  • Implement Control System For A Machine
    Publication number: 20110046857
    Abstract: This disclosure relates to a control system for a machine implement. The control system includes a measurement sensor configured to provide an implement measurement signal indicative of a velocity of a machine implement, and a controller. The controller is configured to provide an implement measurement signal and an operator command signal, and to determine an adjusted implement command based signal based on the implement measurement signal and the operator command signal.
    Type: Application
    Filed: August 18, 2009
    Publication date: February 24, 2011
    Applicant: Caterpillar Inc.
    Inventors: Todd R. Farmer, Charles W. Grant, Gregory A. Epplin, Michael J. Chadwick, Joshua D. Callaway