Patents by Inventor Shawn R. Ellefson

Shawn R. Ellefson 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).

  • Multiple configuration utility vehicle
    Patent number: 7874391
    Abstract: A utility vehicle includes front and rear wheel assemblies, a frame supported on the front and rear wheel assemblies, and an operator compartment supported on the frame and having operator controls. The frame includes a central, tubular frame member having a front end portion and a rear end portion. An engine is supported on the frame for providing power to the front and rear wheel assemblies. A cooling assembly mounted above the engine. An attachment arm is attached to the front portion of the frame and a rear interface mount is rigidly attached to the rear portion of the frame.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: January 25, 2011
    Assignee: Clark Equipment Company
    Inventors: Jeffrey A. Dahl, Shawn R. Ellefson, Matthew J. Kaldor, Warren M. Schatz, Thomas J. Tokach
  • MULTIPLE CONFIGURATION UTILITY VEHICLE
    Publication number: 20080035404
    Abstract: A utility vehicle includes front and rear wheel assemblies, a frame supported on the front and rear wheel assemblies, and an operator compartment supported on the frame and having operator controls. The frame includes a central, tubular frame member having a front end portion and a rear end portion. An engine is supported on the frame for providing power to the front and rear wheel assemblies. A cooling assembly mounted above the engine. An attachment arm is attached to the front portion of the frame and a rear interface mount is rigidly attached to the rear portion of the frame.
    Type: Application
    Filed: August 8, 2007
    Publication date: February 14, 2008
    Inventors: Jeffrey A. Dahl, Shawn R. Ellefson, Matthew J. Kaldor, Warren M. Schatz, Thomas J. Tokach