Patents by Inventor Jack Ratcliff

Jack Ratcliff 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).

  • Foldable wheeled stand
    Patent number: 5890687
    Abstract: The stand incorporates two pairs of wheels and a support pole carried from a central pivot member. The stand is collapsible from an upright orientation in which all wheels are floor-engaging to a folded orientation in which the wheels lie closely alongside the support pole. The wheels are carried on wheel support elements which in turn are connected to a central pivot member. Folding and collapsing actions are synchronized by control arms that extend between the support pole and wheel support elements.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: April 6, 1999
    Assignee: Pryor Products
    Inventors: Paul E. Pryor, Jeffery W. Pryor, Jack Ratcliff