Matches 1 - 16 out of 16


Match Document Document Title
US20100311290 Propulsion System For A Watercraft  
A propulsion system 10 for a watercraft, comprises a surface-piercing propeller 12, a propeller drive 14, a shroud unit 16 which surrounds the propeller and a mounting arrangement 18 for mounting...
US20120015568 Boat Hull Construction  
A boat including a propeller tunnel portion formed in a hull of the boat in which a propeller rotates on an output shaft that extends from the propeller tunnel. A protrusion having a curved...
US20090176419 Submersible propulsor unit  
A submersible propulsor unit, comprising: a duct defined between a duct hub and a duct wall, the duct having a water inlet and a water outlet, a propeller means rotatably mounted within the duct,...
US20090305584 SEMI-SUBMERGED PROPELLER PROPULSION SYSTEM OF DISPLACEMENT AND SEMI-DISPLACEMENT CRAFTS  
A propulsion system of displacement or semi-displacement ships, includes one or more propellers of semi-submerged type, arranged with a partial immersion of the sole bottom blades and with the top...
US20090130927 Kort nozzle  
A Kort nozzle, in particular a Kort nozzle configured rotatable around the rudder axis of a ship, wherein at least one opening is provided in the wall of the Kort nozzle, so that the occurence of...
US20100000461 Foil shapes for use in barge skegs and marine propeller shrouds  
An airfoil shape exhibiting low drag and a high lift/drag ratio has a low thickness/chord ratio and a low camber/chord ratio. The airfoil shape provides desirable results when used in barge skeg...
US20110263168 Gaseous fluid vessel propulsion system  
A bow mounted gaseous fluid vessel propulsion system provides for the introduction of gaseous fluids, e.g. ambient air and/or exhaust fluid gas from the vessel's engine, into the enclosure or duct...
US20080293312 MARINE PROPULSION DEVICE  
A marine propulsion device such as an outboard motor includes a submersible electric motor having a propeller connected directly with the drive shaft of the motor. The motor is an efficient...
US20100226723 Offshore petroleum discharge system  
A method and associated vessel for transferring liquids from offshore tankers to an onshore storage facility. The system utilizes a flexible pipe that is heavier than the water it displaces, such...
US20080194155 Marine Engine Assembly Including a Pod Mountable Under a Ship's Hull  
The marine propulsion set (1, 1′, 1″) comprises: at least one pod (2) that is mechanically connected to a support strut (3, 3′, 3″); a propeller (4) that is situated at the aft end of the pod and...
US20120196494 POWERED WATER SPORTS BOARD  
The invention provides a powered water sports board (10) which includes a motor (16) and a power supply (18), both of which are mounted inside a cavity (20) formed inside an elongate buoyant body...
US20080200081 Vessel propulsion  
The instant invention is a shroud/keel/rudder combination for use on a engine driven marine vessel having a vented tunnel propulsion system. The combination produces acceptable acceleration,...
US20100323566 KORT NOZZLE  
In order to indicate a Kort nozzle configured rotatable around the rudder axis of a ship, for which the occurrence of recirculations or of swirls is avoided or reduced even with an angular...
US20110111652 MARINE PRPPELLING SYSTEM  
A marine propelling system for a boat includes a guide shell having a guideway for guiding a water flow to pass therethrough; a propelling member having a main body and a propeller; a vortex guide...
US20100167605 MULTIPLE VENTURI NOZZLE SYSTEM FOR WATERCRAFT  
The present invention is directed to a multiple propeller nozzle Venturi system and assembly consisting of two or more hydrodynamically shaped nozzle rings, axially located around the propeller...
US20150314831 Air Chamber Hull  
This invention provides a water craft hull having an air chamber, wherein the sidewalls of the air chamber extend lower than the fore wall and the aft wall of the air chamber, and wherein the hull...

Matches 1 - 16 out of 16