Patents by Inventor Sean E. Carey

Sean E. Carey 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).

  • Method and apparatus for calibrating a fluid retarder
    Patent number: 6397694
    Abstract: A method and apparatus is configured for calibrating a fluid retarder 155 in a transmission system. The transmission system may include an engine 120 connected to a transmission 135 through a driveshaft 118, or power input shaft. The driveshaft is mechanically connected to the fluid retarder 155. The fluid retarder includes a rotor 162 mechanically connected to the driveshaft 118, and a retarder valve 175 adapted to enable fluid flow across the rotor 162. The method includes the steps of delivering a valve command to the retarder valve, determining a speed of the engine, and calibrating the retarder valve in response to the engine speed, and the valve command.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: June 4, 2002
    Assignee: Caterpillar Inc.
    Inventors: Charles W. Birchenough, Sean E. Carey, Jeffrey A. Champa
  • METHOD AND APPARATUS FOR CALIBRATING A FLUID RETARDER
    Publication number: 20010045137
    Abstract: The present invention provides a method and apparatus for calibrating a fluid retarder 155 in a transmission system. The transmission system may include an engine 120 connected to a transmission 135 through a driveshaft 118, or power input shaft. The driveshaft is mechanically connected to the fluid retarder 155. The fluid retarder includes a rotor 162 mechanically connected to the driveshaft 118, and a retarder valve 175 adapted to enable fluid flow across the rotor 162. The method includes the steps of delivering a valve command to the retarder valve, determining a speed of the engine, and calibrating the retarder valve in response to the engine speed, and the valve command.
    Type: Application
    Filed: October 29, 1999
    Publication date: November 29, 2001
    Inventors: CHARLES W. BIRCHENOUGH, SEAN E. CAREY, JEFFREY A. CHAMPA