Class 440/39 - Auxiliary use of propulsive fluid

Subclass of Class 440 - Marine propulsion
Definition: Device wherein a portion of the fluid stream may be diverted
No. of patents: 39
Last issue date: 09/23/2008

Number	Title	Issue Date
7427221	Method of and apparatus for aerating bodies of water A body of water is aerated by propelling in the body of water a water pumping arrangement including a sheath having a turning propeller that (a) sucks water from the body into the sheath interior via openings in the sheath, (b) forces the sucked water upwardly and (...	09/23/2008
7371139	Nozzle drive propulsion for a marine craft A nozzle drive propulsion assembly for use with a marine craft and incorporating an annularly configured nozzle disposed in surrounding relation to a propeller collectively mounted exteriorly of the marine craft and preferably, at least partially, within an elongate...	05/13/2008
7361068	Seal pressure vent system for a waterjet apparatus A seal pressure vent system for a waterjet propulsion apparatus including a water intake section and a pumping unit. The pumping unit is designed such that in operation the seal pressure vent system provides a fluidic path for the flow of high pressure water away fr...	04/22/2008
7322867	Surfboard deck grip with storage compartment A surfboard deck grip with a storage compartment for safely storing small articles. The storage compartment is optionally waterproof, and does not interfere with the act of surfing. The storage compartment may further include a vessel that is optionally removable fr...	01/29/2008
7247068	Boat propulsion unit A propulsion unit for a boat has a cooling water intake structure through which entry of cooling water is obstructed when the boat is towed while the impeller is not turned, and through which sufficient cooling water enters when the impeller is turned. The propulsio...	07/24/2007
7188577	Omni thruster for motorboats and motoryachts A device for enhancing the maneuverability of motorboats and motoryachts includes a high velocity water jet pump (HVWJP) attached to the main engine through an electromagnetic clutch. High velocity water flows from the HVWJP's outlet to bow and stern side nozzles, t...	03/13/2007
7040939	Water intake and transmission system A water intake and transmission system for simultaneously driving dual jet units of a jet boat. According to a preferred embodiment, the water intake includes dual channels to allow the uptake of dedicated streams of water. Mounted to the intake is a housing having ...	05/09/2006
6899575	Jet drive marine propulsion system with a water pump The present invention provides a water pump in addition to the impeller system of a marine propulsion system. This allows the water pump to operate independently of the impeller if a clutch is provided which disconnects the impeller from torque transmitting relation...	05/31/2005
6881109	Jet-propulsion watercraft Disclosed is a jet-propulsion watercraft having a simple structure for drawing water as cooling water, the inside of which may be cleaned easily. The watercraft typically comprises an engine, a water jet pump driven by the engine, a two-part pump casing, at least on...	04/19/2005
6752671	Water jet propulsion type outboard engine A water jet propulsion type outboard motor which includes: a power source; a driving system; a housing; a curved tubular duct member; guide blades; and an impeller. The duct member is fixed to the housing on which the power source is mounted, and having a suction po...	06/22/2004
6685517	Personal watercraft Disclosed is a personal watercraft having a water cooling system of an engine, which allows inside of a cooling water passage of an engine or a water passage connected to the cooling water passage to be sufficiently cleaned and a clogged water-supply hole...	02/03/2004
6676464	Supercharger cooling structure for small watercraft To provide a supercharger cooling structure for a small watercraft which can sufficiently cool the supercharger. In a small watercraft in which an engine with a supercharger is incorporated, cooling water from a jet pump is supplied to the supercharger th...	01/13/2004
6666737	Cooling system for jet propulsion boat To provide a cooling system for a jet propulsion boat in which the quantity of washing water consumed can be reduced and the appearance is improved. The cooling system for a jet propulsion boat forces the engine to be cooled and forces the exhaust system ...	12/23/2003
6514107	Universal valve, hose and nozzle assembly for use with a personal watercraft A universally adaptable valve, hose and nozzle assembly for use with a personal watercraft. The watercraft includes an interiorly configured engine compartment operated by a throttle, a rear transom forming a portion of the watercraft's structure, a rearw...	02/04/2003
6409555	Device for generating a plume of water The invention features a device for generating a plume of water, the device including a) a first side wall, b) a second side wall extending at an angle to the first side wall, the first side wall and the second side wall defining a tapered channel, the ch...	06/25/2002
6343964	Jet boat with improved hull design and engine placement A jet powered boat may be provided with a water monitor for fire fighting purposes. The conduit for the monitor is connected to an opening through the bottom of the hull to draw water vertically from beneath the hull. Two motors are provided in the boat. ...	02/05/2002
6305995	Detachable firefighting attachment for a personal watercraft A detachable firefighting attachment is provided for a personal watercraft having a discharge nozzle. The attachment includes a tubular body having a lower end and upper end. There is a firefighting nozzle mounted on the upper end of the body. A fitting a...	10/23/2001
6168481	Jet boat with improved hull design and engine placement A jet powered boat may be provided with a water monitor for fire fighting purposes. The conduit for the monitor is connected to an opening through the bottom of the hull to draw water vertically from beneath the hull. Two motors are provided in the boat. ...	01/02/2001
5846104	Water diverting apparatus A water diverting apparatus for adaptation to a recreational motor ski vehicle. The apparatus provides a water rooster tail during the operation of the motor ski vehicle without degrading the nominal speed of the motor ski vehicle or preventing agile mane...	12/08/1998
5616057	Ship In a ship having water-ejection for driving the ship and spraying water, the water-ejection for the spraying of the water is improved by spraying the water as a fog of droplets, whereby to cool the ship and protect the ship from radioactive fallout....	04/01/1997
5516313	Fire fighting accessory for jet propulsion system A fire fighting accessory for diverting the water flow generated by a jet propulsion system from the drive unit to a fire fighting implement, the accessory specifically designed to be attached to an existing drive system in a noninterfering relationship w...	05/14/1996
5366397	Water jet propulsion unit A water jet propulsion unit in which water is drawn off of the jet propulsion unit through a tap for other purposes, such as pumping the bilge with a jet pump or delivering coolant to the engine. A filter element which can be easily serviced is positioned...	11/22/1994
5299960	Auxiliary water projector for jet propelled watercraft An auxiliary water projector system for use on jet propelled watercraft that only requires removal of the steering nozzle to be connected to the waterjet propulsion system. A thrust control valve is positioned adjacent the remounted steering nozzle. Using...	04/05/1994
5183579	Method, system and apparatus for handling substances on or in water There are disclosed a method of and system including a ship for recovery of oil from an oil spill. The system includes a main ocean-going ship having a floating intake device with large submersible pumps; a clarifier system in the ship for separating the ...	02/02/1993
5173182	Multi-purpose environmental work vessel A multi-purpose environmental work vessel, to be used in a variety of waterways, canals, and other coastal areas to perform a variety of necessary tasks including skimming oil or debris from the surface of the water, dredging for debris beneath the water'...	12/22/1992
5150663	Signal device for small boat Several embodiments of signalling devices for small jet propelled watercraft that generate an upwardly discharged water spray for indicating the presence of the watercraft. In each embodiment, devices are incorporated for precluding the discharge of the s...	09/29/1992
5145426	Multi jet propelled watercraft A V bottom hull watercraft powered by a pair of jet propulsion units that are supported for pivotal movement about horizontally disposed pivot axes and rotary movement about a longitudinal pivot axis to rotate the water inlet openings and elevate them fro...	09/08/1992
5067918	Reverse thruster for water jet propulsion A small watercraft having a jet propulsion unit with a flow directing device for creating a rooster tail spray and a reverse thrust bucket that is formed with clearances so as not to interfere with the spray when operating in the forward direction and to ...	11/26/1991
5064392	Self-propelled floatable fire nozzle A self propelled floatable nozzle 10 is provided including a support housing 14. A water piping system 16 and an air piping system 18 are supported in the housing 14. The water piping system 16 and air piping system 18 cooperate upon opening and closing o...	11/12/1991
5045217	Apparatus for cleaning an oil spill off of a beach A barge has a submersible pump which pumps sea water from a depth of about three feet, heats the water, and uses a boom to direct the heated sea water on the rocks and sand on the beach. The oil which is washed from the beach enters the sea around the bar...	09/03/1991
4850908	Drawing away device of bilge water for water jet propulsion A number of embodiments of the invention wherein bilge water is discharged by means of a venturi pump and the discharge is upwardly directed externally of the watercraft to provide a spray that will indicate the watercraft location....	07/25/1989
4832634	Flow control and protector device for an outboard motor A device for protecting a propeller of a boat motor and for improving the efficiency and therefore the performance characteristics of the motor. The device includes a tubular shroud main body portion which includes a pair of half-sections pivotally secure...	05/23/1989
4832632	Method and apparatus for generating a high plume of water behind a marine craft A method and apparatus for generating a high plume or "rooster tail" of water behind a water jet propelled marine craft, such as a jet ski, is characterized by the insertion of a water diverting member into the upper regions of the jet of water dischargin...	05/23/1989
4787328	Drawing away device of bilge water for water jet propulsion A number of embodiments for removing bilge water from a jet powered watercraft without obstructing the flow through the jet propulsion unit. In all of the embodiments, a portion of the water pressurized by the jet propulsion unit is diverted through a ven...	11/29/1988
4756698	Jet system for sailboats and the like This invention is a hydraulic auxiliary power system for a sailboat, and includes a sea-water-driven turbine pulling water from ahead of the hull and forcing it behind the rear of the hull; the turbine being powered by solar energy....	07/12/1988
4699597	Pump attachment for outboard motors A shell made up of opposed halves is fitted over the propeller screw of the motor on the boat. This shell then becomes an enclosure with inlet and outlet openings at the ends. This shell with the propeller screw forms a pump with the propeller screw pumpi...	10/13/1987
4699596	Modified jet ski nozzle This invention is a nozzle system for use on a water craft and in particular a water craft such as a jet ski. A jet ski is a small engine powered surface water craft, usually designed for one person usage, and generally having a small aft deck suitable fo...	10/13/1987
4392443	Electro-pneumatic hydraulic control systems Propulsion means of undersea vehicle comprises a pair of counter-rotating w speed impellers driven from a spider shaft rotating at relatively high speed. The reduction is accomplished by a variable speed reducing and torque transmitting device which allow...	07/12/1983
3941076	Operating means for boats A motor driven pump, located substantially at the center of mass of a boat and its fixed contents, is provided with a series of selectively effective, aligned openings for taking in water from a selected direction and discharging it in the same direction,...	03/02/1976

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Class 440/39 - Auxiliary use of propulsive fluid