Marine propulsion – Jet drive – Direction control for fluid jet
Patent
1984-07-16
1985-10-29
Blix, Trygve M.
Marine propulsion
Jet drive
Direction control for fluid jet
440 46, 440 38, B63H 1100
Patent
active
045498687
ABSTRACT:
A jet actuated boat propulsion device is provided for driving a boat in areas where hyacinths or other water vegetation exists, and which normally would foul up the operation of an outboard or inboard motor. A water pump positioned in a well in the bottom of the boat and communicating with the water in which the boat is floating is connected through conduits to discharge a jet of water through a nozzle extending into the body of water in which the boat is floating. The jettisoned water being discharged into the body of water exerts a jet action or thrust which drives the boat through the water. The difficulties which have heretofore been encountered in propelling boats in areas where hyacinths or other water plants exist have thus been virtually eliminated because the discharge pipe for the water being jettisoned projects into the body of water at an angle, and therefore the hyacinths and other water plants slip off of the pipe for the jettisoned water and exerts a forward thrust on the boat from an area beneath the surface of the body of water in which the boat is floating. A modified form includes a motor driven pump connected to twin pipes, one of which is a water inlet and the other pipe is the jet pipe to drive the boat through the water.
REFERENCES:
patent: 1237674 (1917-08-01), Moiseeff
patent: 3046735 (1962-07-01), Burgin
patent: 3142285 (1964-07-01), Sorrentino
patent: 4033280 (1977-07-01), Wood
patent: 4056073 (1977-11-01), Dashew
patent: 4157074 (1979-06-01), Sherwood
Bartz C. T.
Blix Trygve M.
Wilson Alfred E.
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