Patents by Inventor Chris Alan DeRoo

Chris Alan DeRoo 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 and method for controlling an operational mode of a vehicle via multiple clutch assemblies
    Patent number: 8100240
    Abstract: A first clutch assembly has an active state for transmitting rotational energy and an inactive state for not transmitting rotational energy. A generator has a generator shaft associated with the first clutch assembly. A second clutch assembly has an active state for transmitting rotational energy and an inactive state for not transmitting rotational energy. A transmission has a transmission shaft directly or indirectly associated with the second clutch assembly. A third clutch assembly has an active state for transmitting rotational energy and an inactive state for not transmitting rotational energy. An engine has an engine shaft associated with the third clutch assembly. A controller establishes an operational mode of the vehicle by controlling the states of the first clutch assembly, the second clutch assembly, and the third clutch assembly.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: January 24, 2012
    Assignee: Deere & Company
    Inventors: Chris Alan DeRoo, Larry Dean Swanson
  • Control System and Method for Controlling an Operational Mode of a Vehicle Via Multiple Clutch Assemblies
    Publication number: 20090326772
    Abstract: A first clutch assembly has an active state for transmitting rotational energy and an inactive state for not transmitting rotational energy. A generator has a generator shaft associated with the first clutch assembly. A second clutch assembly has an active state for transmitting rotational energy and an inactive state for not transmitting rotational energy. A transmission has a transmission shaft directly or indirectly associated with the second clutch assembly. A third clutch assembly has an active state for transmitting rotational energy and an inactive state for not transmitting rotational energy. An engine has an engine shaft associated with the third clutch assembly. A controller establishes an operational mode of the vehicle by controlling the states of the first clutch assembly, the second clutch assembly, and the third clutch assembly.
    Type: Application
    Filed: September 15, 2009
    Publication date: December 31, 2009
    Inventors: Chris Alan DeRoo, Larry Dean Swanson
  • Control system and method for controlling an operational mode of a vehicle via multiple clutch assemblies
    Patent number: 7611004
    Abstract: A first clutch assembly has an active state for transmitting rotational energy and an inactive state for not transmitting rotational energy. A generator has a generator shaft associated with the first clutch assembly. A second clutch assembly has an active state for transmitting rotational energy and an inactive state for not transmitting rotational energy. A transmission has a transmission shaft directly or indirectly associated with the second clutch assembly. A third clutch assembly has an active state for transmitting rotational energy and an inactive state for not transmitting rotational energy. An engine has an engine shaft associated with the third clutch assembly. A controller establishes an operational mode of the vehicle by controlling the states of the first clutch assembly, the second clutch assembly, and the third clutch assembly.
    Type: Grant
    Filed: August 7, 2006
    Date of Patent: November 3, 2009
    Assignee: Deere & Company
    Inventors: Chris Alan DeRoo, Larry Dean Swanson
  • Control system and method for controlling an operational mode of a vehicle via multiple clutch assemblies
    Publication number: 20080029361
    Abstract: A first clutch assembly has an active state for transmitting rotational energy and an inactive state for not transmitting rotational energy. A generator has a generator shaft associated with the first clutch assembly. A second clutch assembly has an active state for transmitting rotational energy and an inactive state for not transmitting rotational energy. A transmission has a transmission shaft directly or indirectly associated with the second clutch assembly. A third clutch assembly has an active state for transmitting rotational energy and an inactive state for not transmitting rotational energy. An engine has an engine shaft associated with the third clutch assembly. A controller establishes an operational mode of the vehicle by controlling the states of the first clutch assembly, the second clutch assembly, and the third clutch assembly.
    Type: Application
    Filed: August 7, 2006
    Publication date: February 7, 2008
    Inventors: Chris Alan DeRoo, Larry Dean Swanson
  • Power-limiting control method and system for a work vehicle
    Patent number: 6745117
    Abstract: A capacity estimator determines a total maximum allowable power storage capacity for a work vehicle. A timer times the operating time of the work vehicle in an electrically propelled mode. A load manager, a driver or both decrease the available power to at least one of a drive motor of the work vehicle and an ancillary load over the operating time to conserve the available power stored for operating at least one critical work vehicle.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: June 1, 2004
    Assignee: Deere & Company
    Inventors: Russell James Thacher, Chris Alan DeRoo