Patents by Inventor Joe Partain

Joe Partain 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).

  • Patent number: 7073822
    Abstract: A steering suspension system utilizing a flexible push/pull cable attached from an operator input mechanism across a suspension system to a wheel steering mechanism. An operator input mechanism is located within a land vehicle structure supported by a wheel. A suspension system connects the wheel to the land vehicle structure and a wheel steering mechanism is used to connect the wheel to the suspension system. The flexible cable connection minimizes the complexity in number of parts for the steering system while providing a flexible connection to the wheel steering mechanism allowing free suspension movement with minimal or negligible affects provided from the steering linkage.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: July 11, 2006
    Inventors: David A. Renfroe, Joe Partain
  • Patent number: 6709013
    Abstract: There is disclosed lever steering apparatus for a land vehicle with steerable and independently suspended front wheels having left and right steering levers at the driver position. The left and right steering levers are coupled by lever mechanisms and an elongated rod to move in opposite directions. Left and right fore and aft links extend from the left and right steering levers to the left and right front wheels to transmit steering motion displacement to the steerable front wheels causing rotation of the axles of the wheels about a vertical axis. A controller arm connected to each wheel stub axles is connected to the forward end of a fore and aft link for steering motion of a front wheel. The control arm fore and aft link combination causes each wheel steering motion to have a predetermined relation to motion of the corresponding link.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: March 23, 2004
    Assignee: University of Arkansas
    Inventors: David A. Renfroe, Joe Partain
  • Publication number: 20020135174
    Abstract: There is disclosed lever steering apparatus for a land vehicle with steerable and independently suspended front wheels having left and right steering levers at the driver position. The left and right steering levers are coupled by lever mechanisms and an elongated rod to move in opposite directions. Left and right fore and aft links extend from the left and right steering levers to the left and right front wheels to transmit steering motion displacement to the steerable front wheels causing rotation of the axles of the wheels about a vertical axis. A controller arm connected to each wheel stub axles is connected to the forward end of a fore and aft link for steering motion of a front wheel. The control arm fore and aft link combination causes each wheel steering motion to have a predetermined relation to motion of the corresponding link.
    Type: Application
    Filed: March 20, 2002
    Publication date: September 26, 2002
    Inventors: David A. Renfroe, Joe Partain