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Marine propulsion

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Class / Patent application numberDescriptionNumber of patent applications / Date published
440049000 SCREW PROPELLER 185
440088000 MEANS FOR ACCOMODATING OR MOVING ENGINE FLUIDS 95
440001000 MEANS TO CONTROL THE SUPPLY OF ENERGY RESPONSIVE TO A SENSED CONDITION 84
440006000 ELECTRIC DRIVE FOR PROPELLING MEANS 70
440038000 JET DRIVE 68
440120500 SELF-PROPELLED VEHICLE HAVING LAND AND WATER PROPULSION MEANS (E.G., AMPHIBIOUS VEHICLE) 48
440084000 ENGINE, MOTOR, OR TRANSMISSION CONTROL MEANS 44
440101000 OAR OR PADDLE 21
440013000 OSCILLATING PROPELLING MEANS 20
440003000 DIVERSE ENGINE MEANS 20
440021000 OPERATOR POWERED DRIVE FOR PROPELLING MEANS 14
440002000 WITH INDICATOR 7
440111000 INBOARD ENGINE MOUNT 5
20110281480CONNECTING PIECE THAT CAN BE INSERTED INTO A BOATS HULL - A connecting piece (11-17-2011
20110294378DRIVE ARRANGEMENT FOR AN INBOARD-OUTBOARD DRIVE ENGINE OF A WATERCRAFT - A drive arrangement for an inboard-outboard drive engine of a watercraft, comprising a drive unit (12-01-2011
20120003886DRIVESHAFT SEALING FOR A MARINE PROPULSION SYSTEM - A sealing unit longitudinally comprises first and second sealing sub-units disposed around first and second portions of a driveshaft of a marine propulsion system of a watercraft. The first sealing sub-unit is sealingly connected to a front wall of the hull and the engine casing. The second sealing sub-unit is sealingly connected to the driveshaft and a crankshaft. The second sealing sub-unit is disposed at least partially inside the first sealing sub-unit. An inside of the first sealing sub-unit is in fluid communication with a water intake ramp. An inside of the second sealing sub-unit is in fluid communication with an interior of an engine. The first sealing sub-unit prevents fluid communication between the water intake ramp and a portion of an inside of the hull. The second sealing sub-unit prevents fluid communication between the engine, the inside of the hull, and the water intake ramp.01-05-2012
20130115834PROTECTIVE BELLOWS FOR A MARINE STERN DRIVE UNIVERSAL JOINT - A bellows for protecting a U-joint in a marine stern drive includes a flexible, hollow body defining an interior space and open at opposite ends, the body formed of a thermoplastic elastomer material to be self-supporting, having a first mating end and a second mating end and being pleated therebetween, a first sealing cuff formed of an elastomeric material, softer than the thermoplastic elastomer material, bonded to the first mating end and, a second sealing cuff formed of an elastomeric material, softer than the thermoplastic elastomer material, bonded to the second mating end.05-09-2013
20100267297DIRECT-PROPULSION EQUIPMENT WITH AN INTERNAL COMBUSTION ENGINE FOR A BOAT, IN WHICH EQUIPMENT THE ENGINE AND THE PROPELLER CONSTITUTE A UNIT ASSEMBLY CAPABLE OF PIVOTING VERTICALLY AND HORIZONTALLY - The subject of the present invention is direct-propulsion equipment with an internal combustion engine for a boat, in which the engine and the propeller constitute a unit assembly capable of pivoting vertically and horizontally. It consists of a cradle (10-21-2010
440005000 HYDRAULIC FLUID DRIVE FOR PROPELLING MEANS 5
20110081811Self-Contained Hydraulic Thruster for Vessel - A self-contained hydraulic thruster for vessel. A power pack is mounted on a forward end of a base, and a helm platform is mounted on an aft end of the base at a substantial height above the base. A reservoir in communication with the power pack is mounted on the helm platform, thus facilitating hydraulic fluid flow from the reservoir to the power pack, and also rendering the hydraulic system self-priming. At least one lower unit is tiltably mounted to the base aft end, laterally offset from the helm platform. Due to the lateral offset between the lower unit(s) and the helm platform, interference between the lower unit(s) and the helm platform is avoided when the lower unit(s) is retracted and tilted up for transportation, storage, or maintenance.04-07-2011
20110028055Amphibious All-Terrain Vehicle - An amphibious, all-terrain vehicle utilizing a pair of hydrostatic pumps to independently provide power to hydraulic drive mechanisms of the left and right side of the vehicle respectively. The hydraulic drive mechanisms on a side of the vehicle comprise a plurality of hydraulic wheel motors and a hydraulic propeller motor. Using a novel hydraulic manifold assembly, the vehicle can operate in three distinct modes: wheels only, wheels and propellers, and propellers only. The hydraulic manifold assembly also allow the vehicle to by put in neutral mode for starting. The wheel motors are mounted in a pair of undercarriage assemblies that are outside of the vehicle's body and fluidly connected to the hydraulic manifold assembly thorough a hose chase that extends well above the vehicle's waterline to eliminate the potential for water to enter the body of the vehicle when operated in the water.02-03-2011
20080220669Hydraulic saildrive apparatus - The subject invention provides a hydraulic saildrive apparatus comprising an upper unit 09-11-2008
20080220668Marine Outdrive - A marine outdrive (09-11-2008
20130130574DRIVE MEANS FOR AMPHIBIOUS EQUIPMENT - Amphibious construction equipment comprising a working unit supported on a pair of elongate, parallel, buoyant pontoons (05-23-2013
440009000 WAVE POWERED PROPELLING MEANS 5
20080299843Wave power vehicle tethers - A wave-powered water vehicle includes a surface float, a submerged swimmer, and a tether which connects the float and the swimmer, so that the swimmer moves up and down as a result of wave motion. The swimmer includes one or more fins which interact with the water as the swimmer moves up and down, and generate forces which propel the vehicle forward. The vehicle, which need not be manned, can carry communication and control equipment so that it can follow a course directed by signals sent to it, and so that it can record or transmit data from sensors on the vehicle.12-04-2008
20120329345Wave-powered autonomous plankton collector - An autonomous submersible vessel employs ambient wave energy to both propel itself and to generate required onboard electrical power. The vessel combines a ballast stabilized stator portion and a wave orbit driven rotor portion. Controlled resistance to their relative rotation occurs only when the horizontal component of wave orbit motion coincides with the desired direction of navigation, so increased hydrodynamic drag at that time acts to pull the vessel forward. The vessel incorporates a means to collect and preserve plankton samples. The vessel design enables alternate operation as an oceanographic glider to also navigate in deep water and in calm seas.12-27-2012
20130102207Wave Power - A wave-powered water vehicle includes a surface float, a submerged swimmer, and a tether which connects the float and the swimmer, so that the swimmer moves up and down as a result of wave motion. The swimmer includes one or more fins which interact with the water as the swimmer moves up and down, and generate forces which propel the vehicle forward. The vehicle, which need not be manned, can carry communication and control equipment so that it can follow a course directed by signals sent to it, and so that it can record or transmit data from sensors on the vehicle.04-25-2013
20120295499WAVE-POWERED DEVICE WITH ONE OR MORE TETHERS HAVING ONE OR MORE RIGID SECTIONS - Many of the known wave-powered devices (“WPDs”) comprise (1) a float, (2) a swimmer, and (3) a tether connecting the float and the swimmer. The swimmer generates thrust as the float moves up and down due to surface waves. A WPD is provided with a rigid tether that can be moved from (a) a first position (“adjacent position”) in which at least a part of the tether is adjacent to the float to (b) a second position (“extended position”) in which the tether (i) is extended below the float and (ii) is at least in part substantially rigid. The WPD can if desired be transported, stored, or launched while the tether is in the adjacent position, and the tether can be moved into the extended position after the device has been launched and remain in the extended position while the device is being operated.11-22-2012
20120094556Wave power - A wave-powered water vehicle includes a surface float, a submerged swimmer, and a tether which connects the float and the swimmer, so that the swimmer moves up and down as a result of wave motion. The swimmer includes one or more fins which interact with the water as the swimmer moves up and down, and generate forces which propel the vehicle forward. The vehicle, which need not be manned, can carry communication and control equipment so that it can follow a course directed by signals sent to it, and so that it can record or transmit data from sensors on the vehicle.04-19-2012
440090000 PADDLE WHEEL 4
20130203307DEVICE FOR BOAT PROPULSION OR ENERGY PRODUCTION - Propulsion device for boats or device or energy production comprising: a first track (08-08-2013
20120244760MARINE PROPULSION SYSTEM AND METHOD - A method for propulsion of a marine vessel, a liquid-directing system and a marine propulsion system are presented. Water-directing scoops are moved in a rearward direction while the scoops are dipping into the water. The scoops may be arranged about a hub. Water is scooped using a bottom edge and lower sides of each of the scoops. Each scoop has an open-faced concave interior and directs scooped water towards a centerline and towards a water exit region of the scoop. The water exit region remains above the local or apparent waterline while the water is scooped, directed and ejected. Water is ejected from the water exit region of the scoop in the rearward direction and at a relative exit velocity that is greater than a relative entrance velocity of water being scooped. Rearward ejection of the water expresses a forward thrust of the propulsion system. Other liquids may be used.09-27-2012
20090029608WATERCRAFT HAVING INDEPENDENT DRIVE INPUTS - A watercraft comprises a hull, and a propulsion system coupled to the hull. The propulsion system comprises at least two propulsion discs, at least two drive inputs, and a differential coupled to the drive inputs. Each drive input is coupled to a respective one of the propulsion discs. The differential includes a power control input and is configured to vary a delivery of power from the drive inputs to the propulsion discs in accordance with the power control input.01-29-2009
20110045718MARINE PROPULSION SYSTEM AND METHOD - A marine propulsion system comprises a propulsion wheel that is rotary driven and that includes an arrangement of water-channeling members located to extend only partially below the water level. As a member is partially submerged, water is collected, compressed, accelerated, and ejected as a water jet. An ejection end of each member may be specifically designed to achieve desired thrust characteristics. The water-channeling members may be non-complex, such as being cup-shaped or spoon-shaped, but may include complex curvatures in order to achieve desired thrust characteristics. A hull may be used to precondition the water level presented to the water-channeling members.02-24-2011
440037000 AIR PROPELLED BOAT 4
20090181584Method for performing overhead work using air-propelled vessel with articulating member - A method of using a wide, flat-bottom, buoyant, amphibious hull with a powered articulating member mounted on the deck. The hull is propelled by at least one engine-driven propeller rotating above the hull. The hull has a shallow draft and distributes its weight over a large area. These features cooperatively provide a vehicle capable of performing overhead work, such as installing or servicing power transmission poles, towers, or other structures located in environmentally sensitive wetlands, swamps, marshes, shallow water, or terrain which is not efficiently accessible by other means.07-16-2009
20110053438Air-thrust vehicle - An air-thrust marine vehicle has a hull with upwardly extending hull sides. An air-thrusting propulsion unit is configured for detachable mounting on the gunwales of various width hulls. The propulsion unit has a base assembly configured to move between a retracted position and plurality of expanded width positions for accommodating various width hulls, while being configured to hingedly engage the gunwales. The propulsion unit can be removed from the vehicle and positioned on another vehicle, such as a boat, an ice- or snow-traversing vehicle.03-03-2011
20110263166All season air propelled watercraft - An all season air propelled watercraft has an elongated cabin structure adapted to accommodate at least one person therein. An elongated central pontoon member adjustably mounted to a bottom portion of the cabin structure and extending in a parallel direction thereto for at least the length thereof. Two stabilizer connector assemblies adjustably attached to a bottom portion of the cabin structure and extending horizontally in opposite directions therefrom. Two lateral stabilizer pontoons respectively and adjustably attached to a distal end portion of each the stabilizer connector assembly;10-27-2011
20120208412Air-thrust vehicle - An air-thrust marine vehicle has a hull with upwardly extending hull sides. An air-thrusting propulsion unit is configured for detachable mounting on the gunwales of various width hulls. The propulsion unit has a base assembly configured to move between a retracted position and plurality of expanded width positions for accommodating various width hulls, while being configured to hingedly engage the gunwales. The propulsion unit can be removed from the vehicle and positioned on another vehicle, such as a boat, an ice- or snow-traversing vehicle.08-16-2012
440113000 MISCELLANEOUS 3
20110021094PUSH POLE FOR A BOAT - A push pole for manually propelling boats, including a shaft and a foot. In a preferred embodiment, the foot is flared at the bottom end in an inverted V-shape, and a pivoting pin is located along one side of the foot, and pivots outwardly from the foot so that it may be used to retrieve lures or as a docking hook. When the pin is not in use, it may pivot back into a receiving cavity within the side of the foot, forming a streamlined edge thereof. In one embodiment, the pivoting mechanism of the pin may include a spring to bias the pin in an outward direction, as well as means for locking the pin into the inward streamlined position when not in use. The pivoting pin may be locked into either the extended or retracted position. Further, the foot may be detachable from the shaft in any desired manner, and replaced by a net, paddle, gig, scrub brush, gaff, docking hook or spike that attaches in the same manner as the foot. Additionally, in a preferred embodiment, the push pole is buoyant in water, and includes a telescoping shaft that may be extended or retracted. A detachable hook is also disclosed.01-27-2011
20100022147Rotor Energy Augmented Marine Vessel - A marine vessel is constructed with a submerged front rotor/turbine that sheilds the vessel hull from water motion induced resistance force to a degree without significantly increasing the vessels water resistance while abstracting hydrodynamic energy from the vessel motion displaced water that would otherwise be dissipated/lost and couples or connects the resulting rotorary energy through mechanical or electrical means to assist in driving the vessel.01-28-2010
20090325431METHOD OF INDICATING A DECELERATION OF A WATERCRAFT - A method of indicating a deceleration of a watercraft is disclosed. The method comprises creating a spray of water using a reverse gate of the watercraft. The spray of water extends above a water level of a body of water in which the watercraft operates. The spray of water is created when the reverse gate of the watercraft is in a lowered position and the watercraft is decelerating. An alternate method comprises creating a spray of water using a reverse gate of the watercraft only when decelerating the watercraft. A watercraft for carrying out at least one of the methods is also disclosed.12-31-2009
440095000 FLEXIBLE ENDLESS PROPELLING MEANS 3
20090305585Self engaging paddle track - The present invention relates to amphibian vehicles, more particularly to track paddling propulsion. The present application is a copy of drawings submitted as a provisional patent title name paddle track; application no. 61/131,473 filing date Jun. 9, 2008, confirmation no. 7119.12-10-2009
20080214070Acceleration System For Link Belt-Mounted Ship - An acceleration system for a link belt-mounted ship includes; water wheels, rotating shafts mounted through the water wheels, link belts surrounding the water wheels and formed at an outer peripheral surface thereof with hook-shaped blades, ball bearing units mounted external to the water wheels so that the rotating shafts are inserted therethrough, square pipes onto which the ball bearing units are bolted, hinges bolted onto the square pipes and each hinge having a hinge rod bolted to the hull, and hydraulic cylinders fastened on the square pipes so that they are fixed to the bottom surface of the hull by way of upper brackets and associated pins, and fixed to the square pipes by way of lower brackets and associated pins.09-04-2008
20130017741WATER TRACTOR WITH FLOATING TRACKSAANM Da Silva; VilsonAACI Sao PauloAACO BRAAGP Da Silva; Vilson Sao Paulo BR - The present patent consists of a vehicle equipped with a series of floating caterpillars that circulate on an ovoid rail, forming a continuous track; the male-female couplings between the traction caterpillars, their hydrodynamic locks and their direction system operate with the braking of one of the sides of the track and the slipping of the opposite track, being able to rotate through 360°. Said vehicle has the purpose of towing load barges on rivers or lakes. Due the absence of displacement, since the vehicle moves on the water, the performance is distinctly improved and the fuel consumption is considerably reduced in comparison with watercraft having an equivalent load-carrying capacity.01-17-2013
440033000 TOWING 2
20090170382Push pole for a boat - A push pole for manually propelling boats, including a shaft and a foot. In a preferred embodiment, the foot is flared at the bottom end in an inverted V-shape, and a pivoting pin is located along one side of the foot, and pivots outwardly from the foot so that it may be used to retrieve lures or as a docking hook. When the pin is not in use, it may pivot back into a receiving cavity within the side of the foot, forming a streamlined edge thereof. In one embodiment, the pivoting mechanism of the pin may include a spring to bias the pin in an outward direction, as well as means for locking the pin into the inward streamlined position when not in use. The pivoting pin may be locked into either the extended or retracted position. Further, the foot may be detachable from the shaft in any desired manner, and replaced by a net, paddle, gig, scrub brush, gaff, docking hook or spike that attaches in the same manner as the foot. Additionally, in a preferred embodiment, the push pole is buoyant in water, and includes a telescoping shaft that may be extended or retracted. A detachable hook is also disclosed.07-02-2009
20100190391PERSONAL WATERCRAFT - A personal watercraft is provided that is capable of achieving high speeds. The craft can operate on a surface of a body of water or beneath the surface of the body of water. The personal watercraft includes a hull, a streamlined water tunnel disposed within the hull, a plurality of fins extending from the hull, a propeller disposed within the water tunnel, a motor disposed within the hull and outside of the water tunnel, a water intake at the front of the water tunnel and at the front and bottom of the hull, first and second water exhausts at the rear of the water tunnel and at the rear and bottom of the hull, and first and second handgrips located at the rear of the hull. The propeller can pull water into the water tunnel via the water intake, and the amount of water entering the watercraft at any given time is substantially the same as the amount of water exiting the watercraft via the water tunnel and the water exhausts.07-29-2010
440094000 UPRIGHT REMAINING ORBITING PADDLES 1
20090215339Watercraft Paddle Propulsion System - The present invention discloses a method and system for a nautical propulsion device comprising a plurality of cooperating paddles driven by levers in a sweeping motion while cooperating with a peddle gear and electric motor in order to produce a reciprocating back and forth paddle motion capable of driving a vessel through water densely populated with obstructive matter such as grass, Lilly pads, logs and other debris with ease. Additionally the pedal gear of the present invention allows for the paddles to be lifted while being brought towards the vessel wherethen said paddle is brought downward and away from the vessel to push the device forward. Finally a speed throttle is mounted to the device to control the speed at which the paddles reciprocate and control the directions that force is applied in to the back of a vessel.08-27-2009
440098000 BUOYANT PROPELLING MEANS 1
20090215340Speedboat or high speed watercraft with dynamic hull - The vehicle can be referred as a type of speedboat, because it is designed for very high speed on water. Preferably, the vehicle consists of a hollow shell 08-27-2009
440004000 PLURAL ENGINES WITH SINGLE PROPELLING MEANS 1
20080261467Marine Vessel - The invention relates to a marine vessel with at least a first cargo facility at a stern end and at least a second cargo facility at a bow end, and having a deckhouse arranged between the first cargo facility and the second cargo facility. In order to provide for cost-effective propulsion and cargo transport in combination, the propulsion system comprises a first propulsion unit and a second propulsion unit forming a CRP propulsion system. The machinery of the first propulsion unit and the machinery of the second propulsion unit are located on top of each other under the deckhouse.10-23-2008
440008000 WIND DRIVEN MOTORS 1
20100233919Check valve turbine - Aspects of an embodiment of a check valve turbine assembly include a rotation platform having an axis of rotation, a vertical member concentrically secured to the rotation platform about the axis of rotation, a rotatable sail assembly attached to the vertical member that includes a frame, a hinge beam, and a rotatable sub-sail assembly. The sub-sail assembly includes a stem beam, a sub-sail grid frame attached to the stem beam, and a plurality of flaps rotatably attached to the sub-sail grid frame and configured to move between a closed position and an open position relative to the sub frame. Aspects of a marine check valve turbine include a free-floating platform structure configured with an upper surface at or near a water surface and a vertical member secured to the platform structure about an axis of rotation and configured to extend from the upper surface of the platform structure.09-16-2010

Patent applications in class Marine propulsion

Patent applications in all subclasses Marine propulsion