Patents by Inventor Clayton D. Roberts

Clayton D. Roberts 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).

  • Self-righting toy carousel
    Patent number: 5169354
    Abstract: A self-righting carousel toy having an eccentrically mounted internal weight for inducing oscillation of the toy about an upright position upon rotation of the weight relative to the base. The toy includes a drive mechanism for selectively rotating a display assembly relative to the base, independent of the self-righting forces.
    Type: Grant
    Filed: May 29, 1991
    Date of Patent: December 8, 1992
    Assignee: Fisher-Price, Inc.
    Inventors: John J. Norton, Clayton D. Roberts