Patents by Inventor William H. Crowther

William H. Crowther 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: 4194452
    Abstract: Parallel links pivotally connect each end of a tabletop to a table base so that the top can be swung in level attitude elevationally and laterally relative to the base. A tie rod synchronizes the movement of links at opposite ends of the top to maintain such links in alignment for smooth swinging of the top. When the top is swung upward and outward from a position centrally of the table base, mechanism responsive to such swinging of the top automatically projects a stabilizing foot outward beyond the side of the base toward which the top moves, and such mechanism retracts such foot into the base when the top is swung downward and inward.
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: March 25, 1980
    Inventors: William H. Crowther, Gregory A. Carpenter