Patents by Inventor William C. Ruth

William C. Ruth 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: 5713543
    Abstract: A portable stand is disclosed that vertically stabilizes an object upon a supporting surface. In one embodiment, the stand comprises a sleeve that has a vertical axis and defines an interior region that is adapted to receive the object. A plurality of supporting members are radially disposed about the sleeve, each member having a proximate and a distal end. Each member is pivotly mounted to the sleeve and biased in a retracted position. In the retracted position, the proximate end of each member radially and inwardly extends in the interior of the sleeve. The members remain in the retracted position when the stand is not on a supporting surface. The stand also comprises an actuator that has a contacting surface. The actuator is adapted to slide axially within the sleeve and is biased in a downward position by gravity. In the downward position, the contacting surface is positioned below each proximate end. The actuator remains in the downward position when the stand is not on the supporting surface.
    Type: Grant
    Filed: November 20, 1995
    Date of Patent: February 3, 1998
    Inventors: William C. Ruth, Robert I. McCrindle