Patents by Inventor Andy E. Theophanides

Andy E. Theophanides 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).

  • Nautical propulsion performance enhancer
    Patent number: 5505642
    Abstract: A nautical propulsion performance enhancer for a propeller of a marine propeller type propulsion system, comprising a facility for twisting and directing a flow of water into the propeller, in such a manner that swirling water will hit the propeller in a direction opposite to rotation of the propeller. A structure is for mounting the twisting and directing facility to the marine propeller type propulsion system adjacent the propeller, in order to overcome unwanted effects of cavitation and porpoising.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: April 9, 1996
    Inventor: Andy E. Theophanides
  • Hydraulic power system for a boat
    Patent number: 5476400
    Abstract: An hydraulic power system for a boat comprising a marine thruster assembly. A structure is for mounting the marine thruster assembly to an exterior surface of a transom on the boat. A first hydraulic operative facility is for propelling the marine thruster assembly, so that the boat can travel in a body of water. A second hydraulic operative facility is for steering the marine thruster assembly, so that the boat can be directed on a course in the body of water. A third hydraulic operative facility is for lifting the marine thruster assembly out of the body of water for inspection and repair when needed.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: December 19, 1995
    Inventor: Andy E. Theophanides