| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 440049000 |
SCREW PROPELLER
| 259 |
| 440088000 |
MEANS FOR ACCOMODATING OR MOVING ENGINE FLUIDS
| 128 |
| 440006000 |
ELECTRIC DRIVE FOR PROPELLING MEANS
| 112 |
| 440001000 |
MEANS TO CONTROL THE SUPPLY OF ENERGY RESPONSIVE TO A SENSED CONDITION
| 106 |
| 440038000 |
JET DRIVE
| 89 |
| 440120500 |
SELF-PROPELLED VEHICLE HAVING LAND AND WATER PROPULSION MEANS (E.G., AMPHIBIOUS VEHICLE)
| 81 |
| 440084000 |
ENGINE, MOTOR, OR TRANSMISSION CONTROL MEANS
| 46 |
| 440101000 |
OAR OR PADDLE
| 31 |
| 440021000 |
OPERATOR POWERED DRIVE FOR PROPELLING MEANS
| 30 |
| 440013000 |
OSCILLATING PROPELLING MEANS
| 27 |
| 440003000 |
DIVERSE ENGINE MEANS
| 21 |
| 440111000 |
INBOARD ENGINE MOUNT
| 9 |
| 440009000 |
WAVE POWERED PROPELLING MEANS
| 9 |
| 440037000 |
AIR PROPELLED BOAT
| 8 |
| 440002000 |
WITH INDICATOR
| 7 |
| 440005000 |
HYDRAULIC FLUID DRIVE FOR PROPELLING MEANS
| 6 |
| 440090000 |
PADDLE WHEEL | 4 |
| 20130203307 | DEVICE FOR BOAT PROPULSION OR ENERGY PRODUCTION - Propulsion device for boats or device or energy production comprising: a first track ( | 08-08-2013 |
| 20090029608 | WATERCRAFT 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 |
| 20110045718 | MARINE 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 |
| 20120244760 | MARINE 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 |
| 440113000 |
MISCELLANEOUS | 3 |
| 20090325431 | METHOD 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 |
| 20100022147 | Rotor 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 |
| 20110021094 | PUSH 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 |
| 440095000 |
FLEXIBLE ENDLESS PROPELLING MEANS | 3 |
| 20090305585 | Self 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 |
| 20080214070 | Acceleration 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 |
| 20130017741 | WATER 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 |
| 440008000 |
WIND DRIVEN MOTORS | 2 |
| 20100233919 | Check 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 |
| 20140322996 | FLOATING STRUCTURE FLUID DYNAMIC FORCE USE SYSTEM AND WIND-PROPELLED VESSEL - Provided are a floating structure fluid dynamic force use system and a wind-propelled vessel which uses the system whereby it is possible to compensate for overturning moment due to fluid dynamic force and to alleviate both tilting and size increases of a floating structure. A floating structure fluid dynamic force use system ( | 10-30-2014 |
| 440033000 |
TOWING | 2 |
| 20090170382 | Push 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 |
| 20100190391 | PERSONAL 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 |
| 20090215339 | Watercraft 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 |
| 440011000 |
POWERED FROM LAND VEHICLE SUPPORTED BY VESSEL | 1 |
| 20130344755 | RV barge - A vessel for carrying an RV (recreational vehicle) through the water, thereby effectively converting the RV to a houseboat. The barge-like vessel includes ramps for loading and unloading an RV at a boat ramp. The barge is powered by the drive wheels of the RV, wherein the drive wheels are each resting on two rotatable cylinders similar to a dynamometer cradle. The wheels spin the cylinders which in turn rotate the propellers so that the speed is controlled by the speed at which the drive wheels turn. Direction is controlled by a knob on a fly-by-wire type device which in turn controls the rudder. An alternative directional control includes two turntables onto which the front wheels rest. One of the turntables is mechanically connected to the rudder so that the steering wheel controls the rudder. Ballast tanks are provided at each side of the front and back of the barge to keep the barge level. | 12-26-2013 |
| 440004000 |
PLURAL ENGINES WITH SINGLE PROPELLING MEANS | 1 |
| 20080261467 | Marine 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 |
| 440098000 |
BUOYANT PROPELLING MEANS | 1 |
| 20090215340 | Speedboat 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 |
