Patents by Inventor Walter D. Fuller

Walter D. Fuller 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).

  • Precision controlled cartesian diver
    Patent number: 4886459
    Abstract: A closed fluid containing device wherein precise and reversible controlled pressure is applied to a contained fluid and to a freely enclosed, variably bouyant, pressure sensitive submersible that transits a vertical travel guide reciprocably. Variance of the controlled applied pressure varies the fluid displacement and bouyancy of the pressure sensitive submersible. Within the limiting factors of displacement of the fluid, specific gravity, density, and vertical location, the submersible will then rise, fall, or remain freely suspended.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: December 12, 1989
    Inventor: Walter D. Fuller
  • Transparent multiple tubular flower bud vase
    Patent number: D357886
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: May 2, 1995
    Inventor: Walter D. Fuller