Matches 1 - 50 out of 139 1 2 3 >
Match Document Document Title
7614925 Transportable outboard motor  
A transportable outboard drive for a boat has a head, a pylon, a shaft connecting the head and the pylon, an electric motor and a cable running inside the shaft. The shaft has at least two shaft...
7306497 Boat propeller and method for assembling the same  
The present invention relates to a boat propeller and the assembly method therefor. The propeller comprises a hub and a plurality of separated blades to be integrally coupled with corresponding...
7278893 Combined motorboat transom saver and anti-theft propeller lock device  
A combined support and lock device ( 10 ) has a longitudinally extending support portion ( 20 ) and a longitudinally extending lock portion ( 50 ). The support portion ( 20 ) includes a centrally...
7153101 Pulling marine propeller  
A pulling marine propeller ( 1 ) including multiple propeller blades ( 4 ) attached to a propeller hub ( 5 ). The propeller hub ( 5 ) is attachable to a propeller shaft ( 9 ) extending from a drive...
7144223 Supercavitating propeller with adjustable cup, and the method to adjust said cup  
The invention describes a supercavitating propeller with adjustable cup, and a method to adjust the cup. The trailing edge of the propeller blade is characterised by a protuberance with a limited...
7101236 Marine propulsion unit  
A marine propulsion unit utilizing a turbine engine is provided as a drop-in module. The propulsion unit includes a base which forms a part of the hull. The propulsion unit includes a drive unit...
7090550 Propeller with variable geometry and method for varying geometry of a propeller  
The present invention broadly comprises a propeller having a blade assembly with a plurality of linking members operatively connected to change dimensions of the blade assembly as the linking...
7048510 Propeller spinner for a marine propeller  
A propeller spinner ( 5 ) for a marine propeller ( 1 ) having multiple propeller blades ( 2 ) attached to a propeller hub ( 3 ) that is adapted for attachment to a propeller shaft ( 4 ) and...
7040940 Rotatable lifting surface device having selected pitch distribution and camber profile  
Rotatable lifting surface devices, such as propellers, impellers, and turbines, and blades for such devices use camber profiles and pitch distributions to obtain performance from flexible devices...
7025642 Boat propeller  
A boat propeller includes a hub having a front, back, and an axis of revolution extending therebetween. A plurality of blades provide and extend from the hub between the front and back. Each blade...
6921305 Outboard motor  
An outboard drive unit for a watercraft to allow propulsion of the watercraft in mud and water. The drive unit has a reduction gear assembly mounted between a motor and a propeller assembly,...
6902448 Marine propulsion unit  
A marine propulsion unit utilizing a turbine engine is provided as a drop-in module. The propulsion unit includes a base which forms a part of the hull. The propulsion unit includes a drive unit...
6882289 Monitoring and control of watercraft propulsion efficiency  
Readout devices and controls are provided that alert the user to unusual propeller slip conditions. Embodiments of the invention incorporate some signal processing to account for a progressively...
6851991 Hull and propeller arrangement  
Hull and propeller arrangement for a surface watercraft ( 1 ), provided with at least one propeller ( 3 ), in addition to which the propeller ( 3 ), at high speeds of the watercraft, is...
6837760 Method for modifying engine loading through changing of propeller blade shape by bending a propeller blade edge to modify the section camber and pitch of the blade, and propellers made using the same  
The present invention is directed to a method of altering the pitch of a propeller through localized bending of its blades. To alter the propeller's pitch the camber of at least one of its blades...
6764359 Marine outdrive assembly  
An apparatus for use with a vertical shaft lawnmower motor to provide an outboard motor for boat propulsion. The apparatus is comprised generally of a light weight drive housing adapted for a motor...
6672757 Blender adapter for an outboard motor  
A system and method for operating an auxiliary device from an internal combustion engine driven tool without materially affecting the primary function of the tool. The system and method is...
6644926 Vane structure for a propeller  
A vane structure for a propeller for engaging fluid and preventing cavitation or the rapid formation and collapse of low-pressure gas bubbles in a liquid. The vane structure for a propeller...
6616489 Weed-trimmer adapted with a screw or water wheel  
Motorized weed-trimming device can contain a screw or water-wheel attachment. The screw-adaptation part may be in the form of a grain auger, post-hole digger, drill bit, water-screw, for example, a...
6562206 Anode assembly  
A propeller attachment is disclosed including a body, the body including an anodic material, at least one projection projecting from the body, and a fastener coupled to the body. An anode is also...
6477969 Boat with center pontoon and separate motor mount  
A center pontoon for a pontoon boat provides improved performance and an adjustable engine mount. The adjustable engine mount makes it possible to adjust the relative position of an outboard engine...
6431926 Ribbon drive propulsion system and method  
A ribbon drive propulsion apparatus and method for water-borne vessels such as surface craft and submersibles is disclosed. The vessel is equipped with an extended tube having an intake at a first...
6422905 Marine propeller, propeller system and components belonging thereto, and a method of connecting a propeller  
In an adapter for adapting a marine propeller to a housing part of a drive source, the adapter includes a hub-connecting side and a housing-connecting side and a portion for fastening the adapter...
6383042 Axial twist propeller hub  
A propeller assembly that includes an interchangeable drive sleeve, a resilient inner hub having a bore in which the drive sleeve is inserted, and a propeller including an outer hub in which the...
6332818 Propulsion system  
A propulsion system for a water craft having at least one shaft extending rearwardly form the transom of the hull of the craft and a drive system for driving the at least one shaft. A surface...
6293754 Method and apparatus for altering the physical properties of fluids  
A system for fluid processing is provided to control shear, point velocity and pressure in either a Newtonian or non-Newtonian fluid, which includes creation of three fields, namely a dynamic...
6234852 Impeller for water jet pump of watercraft  
An impeller for a water jet pump of a watercraft having a structure so as to enhance pump efficiency, and to reduce manufacturing cost having a tip portion configured to be fixed to a propeller...
6193572 Propeller assembly including a cantilever spring  
A propeller assembly that includes, in an exemplary embodiment, a cantilever spring for securing a propeller to a propeller shaft is described. In the exemplary embodiment, the propeller assembly...
6190220 Protective cover and method for protecting a boat propeller shaft  
A protective cover and method for protecting a boat propeller shaft and gears within a lower gear housing of a boat includes a cone-shaped casing having an inner surface, an outer surface, a top,...
6135831 Impeller for marine waterjet propulsion apparatus  
An impeller for a marine waterjet propulsion system has blades that are configured to reduce cavitation, vibration, noise and physical damage to the major components of the propulsion system or...
6086438 Propeller hitch cover  
A propeller hitch cover (10) which stimulates a ship's propeller and is designed to be removably attached to a vehicle's trailer hitch (90). When the propeller hitch cover (10) is attached, it is...
6009822 Bow or stern thruster  
The bow or stern thruster is a steering device for commercial boats or for large yachting vessels. The thruster has a tunnel disposed transversely across either the bow or the stern of the boat....
5989084 Outboard marine engine having a vertical crankshaft  
In an outboard marine engine having a vertically oriented crankshaft, a bracket for supporting an AC generator is provided with a pair of cantilever arms for supporting a pivoted portion and a...
5908339 Modular gas-driven power distribution system  
A modular, gas-driven power distribution system includes a gasoline-operated module delivering power to a connector having a rotatable element enabling a plurality of mechanical devices to be...
5897407 Impeller  
Disclosed is an impeller made from titanium or a titanium alloy. Desirably, the titanium or titanium alloy is cast into the impeller.
5836794 Retractable trolling motor housing for boat  
A motor boat having a retractable trolling motor which motor is surrounded by a housing. The housing includes a top wall, two side walls and a bottom wall with openings at the front and rear of the...
5803776 Partially immersible propeller  
The propeller comprises a propeller shaft mounted so that its position in relation to the ship's hull can be varied both at stopovers or in transit. The propeller shaft carries propeller blades of...
5800223 Marine propulsion device  
A marine propulsion device improves the handling characteristics and the responsiveness of the watercraft on which it is used. The propulsion device includes a pair of counter-rotating propellers....
5733156 Variable propeller for boat  
In a variable propeller for a boat, variable-diameter main blades and stationary subsidiary blades are mounted on a propeller boss in order to provide further enhanced low-speed driving property...
5695370 Motorboat propeller  
A motorboat propeller comprises a hub and a plurality of blades mounted on the hub. The hub comprises peripherally along the axis thereof a front segment, a midsegment and a rear segment. The hub...
5664975 Reflective propeller safety cover  
A reflective propeller safety cover comprising a bag having a flat bottom wall and a side wall peripherally coupled thereto and extended therefrom to define a hollow interior sized for holding a...
5632658 Tractor podded propulsor for surface ships  
In accordance with one embodiment of the present invention a surface ship having at least one tractor podded propulsor is provided. The vessel having a tractor podded propulsor system comprises a...
5619948 Powered swimming aid  
A powered swimming aid comprising a stabilizing member attached to the users back, and buoyancy device rigidly attached to the stabilizing member, the buoyancy device being located below the user's...
5611718 Auxiliary propelling device  
An auxiliary propelling structure can be attached to an existing propeller system including a propeller having a boss, a propeller shaft and a tightening nut screwed onto the end of the shaft. The...
5597245 Cavitation suppressing ducted propeller system  
This invention relates to a device for use with a ducted propeller system r suppressing gap cavitation between a moving rotor tip and duct wall and more particularly to means for supplying fluid to...
5562511 Marine apparatus  
Disclosed herein is marine apparatus comprising a boat including a hull, an outboard motor including a propulsion unit having a rear side and mounted on the hull for pivotal movement relative...
5527193 Covers for boat blades of propellers of in-board and outboard boat motors  
The invention relates to hand-insertable, rigid plastic cover for use with an individual boat blade of a propeller of an in-board or outboard boat motor wherein each cover of the invention is...
5514011 Propeller arrangement for a marine propulsion unit  
A propeller has a hub affixed to a propeller shaft so as to rotate therewith. The hub is axially locked by a locking arrangement consisting of a lock nut screwed on to the shaft and a lock screw...
5462462 Modified propeller blade  
A plastic propeller for marine electric trolling motors modified to prevent the entanglement and build-up of weeds by the application to its surface of a thin sheet of metal formed in the shape and...
5413511 Outboard motor drive system  
An outboard motor adaptor (10) comprises an upper housing (12) provided with a connection bar (24) having formations (28, 30) thereon for engaging with bar studs (44) on a chainsaw housing (42). A...
Matches 1 - 50 out of 139 1 2 3 >