Patents Assigned to Thompson Marine Propulsion Systems, Inc.
  • Outboard boat propulsion installation
    Patent number: 4832642
    Abstract: Two centrifugal pump and paddle type boat propulsion devices are mounted in astern outboard positions on two swingable vanes, respectively, projecting aft of a boat hull, spaced athwartships of the hull and swingable from positions inclined rearwardly and downwardly from the hull transom into upwardly and rearwardly inclined positions in which the rotors of the propulsion devices and rudders behind them are retracted above the level of the boat bottom.
    Type: Grant
    Filed: September 23, 1987
    Date of Patent: May 23, 1989
    Assignee: Thompson Marine Propulsion Systems, Inc.
    Inventor: Merall L. Thompson