Patents by Inventor Ronald O. Robinson

Ronald O. Robinson 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: 6887029
    Abstract: A three-wheeled, electrically powered cart is provided for transporting items typically transported using a hand truck. The cart comprises a body section housing rechargeable batteries and a steerable load section that is hinged to the body section. An electric motor powers the front wheel for propelling the cart. The load section pivots about a generally vertical axis and has a movable load rack that pivots about a horizontal axis. A platform is located between the rear wheels for supporting a user during operation. In one embodiment, the width of the cart is approximately 24 inches, allowing the cart to pass through a typical doorway.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: May 3, 2005
    Inventor: Ronald O. Robinson