Patents by Inventor Dan DeWolfe

Dan DeWolfe 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).

  • Multimodal vehicle traction system
    Patent number: 7600599
    Abstract: This invention relates to multiple driven axle vehicles, and particularly to all-terrain vehicles equipped for rear wheel drive, four wheel drive, and on-demand front wheel drive. The invention is directed toward a system of switchable traction options allowing the vehicle operator to easily choose between different modes, such as rear wheel drive with an open or unlocked differential, rear wheel drive with a locked differential, four wheel drive with open differentials, four wheel drive with one locked differential, four wheel drive with two locked differentials, or rear wheel drive with on-demand four wheel drive.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: October 13, 2009
    Assignee: Polaris Industries Inc.
    Inventors: Nathan Dahl, Jeff Lovold, Tim Wysocki, Scott Ostroski, Dan Dewolfe, Sean Sherrod
  • Multimodal vehicle traction system
    Patent number: 7220209
    Abstract: This invention relates to multiple driven axle vehicles, and particularly to all-terrain vehicles equipped for rear wheel drive, four wheel drive, and on-demand front wheel drive. The invention is directed toward a system of switchable traction options allowing the vehicle operator to easily choose between different modes, such as rear wheel drive with an open or unlocked differential, rear wheel drive with a locked differential, four wheel drive with open differentials, four wheel drive with one locked differential, four wheel drive with two locked differentials, or rear wheel drive with on-demand four wheel drive.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: May 22, 2007
    Assignee: Polaris Industries Inc.
    Inventors: Nathan Dahl, Jeff Lovold, Tim Wysocki, Scott Ostroski, Dan Dewolfe, Sean Sherrod
  • Multimodal vehicle traction system
    Patent number: 6976553
    Abstract: This invention relates to multiple driven axle vehicles, and particularly to all-terrain vehicles equipped for rear wheel drive, four wheel drive, and on-demand front wheel drive. The invention is directed toward a system of switchable traction options allowing the vehicle operator to easily choose between different modes, such as rear wheel drive with an open or unlocked differential, rear wheel drive with a locked differential, four wheel drive with open differentials, four wheel drive with one locked differential, four wheel drive with two locked differentials, or rear wheel drive with on-demand four wheel drive.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: December 20, 2005
    Assignee: Polaris Industries Inc.
    Inventors: Nathan Dahl, Jeff Lovold, Tim Wysocki, Scott Ostroski, Dan DeWolfe, Sean Sherrod