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Patent Searching and Data


Matches 701 - 750 out of 4,972

Document Document Title
WO/2000/035749A1
The invention relates to a ship, notably for tugging, and which in particular is suitable for the high seas, which comprises cycloidal propellers (3, 3a, 17, 17a) which are arranged in a pair below or at the level of the front (1) of the...  
WO/2000/034118A1
A marine propulsion unit comprises a cowl (10), a propeller shaft (4) mounted on the cowl, and a propeller mounted on the propeller shaft. The propulsion unit can be mounted on a boat simply by attaching the cowl (10) to the hull of the ...  
WO/2000/027696A1
The invention relates to a drive device which has contra-rotating propellers for driving boats or other maritime objects and which is comprised of two identical or similar drive modules. Said drive modules are each arranged 'back-to-back...  
WO/2000/027697A1
The invention relates to a device for propelling ships and the like, and a nozzle for (2) use in such a device. The nozzle has a cylindrical inner surface (7) which at the inlet side (8) and at the outlet side (9) is connected by means o...  
WO1997030813A9
The phase control mechanism includes first gears (3, 4) coupled to the output shafts which are to be phase controlled. A transfer gear (5) is provided for rotation or operation independent of the input and is coupled to the first gears (...  
WO/2000/018641A1
The invention concerns a load-bearing structure such as a wing provided with serrated plates (16) on its free edges for breaking tip vortex generated in those places by distributing the fluid pressure. The vortex dissipation is accelerat...  
WO/2000/017047A1
A fluid and elastomer damper (10) includes a first and second members (20, 60) and an elastomer section (40) flexibly mounting the second member to the first member and allowing lateral movement therebetween. The elastomer section (40) i...  
WO/2000/015495A1
The present invention relates to a propeller drive arrangement and a method for moving and steering a vessel. The arrangement comprises an azimuthing propulsion unit (6) and operating equipment for turning said azimuthing propulsion unit...  
WO/2000/013966A1
The device serves for the propulsion of a boat and has a propeller and a gearbox housing (1). Said gearbox housing (1) is fitted with a rounded tapering end segment (4). The end segment (4) has an extension having at least in certain are...  
WO1998029303A8
An aircraft has a fuselage substantially designed as an aerostatic lifting body and combined lifting and propelling devices joined to the fuselage, provided with propellers and forming driving units which can tilt between a lifting posit...  
WO/1999/055581A1
The invention relates to a vessel comprising a hull (1) and a paddle wheel (3) arranged to turn with respect to the hull, whereupon the vessel can be steered by the paddle wheel (3) and any separate steering rudders, propellers or the li...  
WO/1999/050139A1
A method and an apparatus for improving the properties of a boat. According to the invention the rear part of the boat has, at least by the propeller, guide plates (3) which plough more space for the exit streams (4) of the propeller (2).  
WO1998029303B1
An aircraft has a fuselage substantially designed as an aerostatic lifting body and combined lifting and propelling devices joined to the fuselage, provided with propellers and forming driving units which can tilt between a lifting posit...  
WO1999012808A9
A buoyant wheel (10), for use in soft terrain or fluid mediums, having a circumferential boundary (C) and a longitudinal boundary (L), which comprises a hollow sealed chamber having a plurality of concaved segments (21a, 21b, 21c, 21d) i...  
WO/1999/039973A1
A propulsion system for a water craft has at least one shaft (1) extending rearwardly from the transom (2) of the hull (3) of the craft and a drive system (9, 10, 11) for driving the shaft(s). A surface piercing propeller (4) is mounted ...  
WO/1999/039974A1
A screen system for marine thrusters is devised having directionally streamlined screens (2, 3) with geometrically-shaped contoured gratings (6) capable of imparting thrustenhancing effects, thereby permitting high operational efficiency...  
WO/1999/035033A1
Drive assembly in a boat, comprising a propeller drive (5) which is arranged on the outside of the boat hull (4) and has twin counter-rotating propellers (18, 19). The drive is drivably coupled to a drive unit (1) arranged on the inside ...  
WO/1999/029568A1
Machine-driven propulsion system for vessels where the propulsion force arises from a high-speed vane wheel having cup-shaped vanes open in the direction of rotation. The vane intake is provided with a cutting edge which penetrates down ...  
WO/1999/020524A1
The invention relates to a vessel provided with a retractable thruster (5). The vessel is characterized in that the thruster is connected to a lifting device for retracting the thruster in two stages, the lifting device in the first stag...  
WO/1999/019209A1
A closure preventive device for water jet propulsion type outboard motors, in which a screen (6) is turnably supported to move between a close position where it covers a suction port (7) and an open position where it is away from the suc...  
WO/1999/014113A1
The present invention relates to a propulsion system for vessels and a method for moving a vessel in ice conditions. The system comprises a drive shaft (3), a propeller (4) attached to the drive shaft, a nozzle (5) surrounding the propel...  
WO/1999/012808A1
A buoyant wheel (10), for use in soft terrain or fluid mediums, having a circumferential boundary (C) and a longitudinal boundary (L), which comprises a hollow sealed chamber having a plurality of concaved segments (21a, 21b, 21c, 21d) i...  
WO/1999/005023A1
The invention relates to an electric pod drive system for a vessel, which has a water-circulating aerodynamic electric motor adapted to a drive pod, wherein said pod is arranged on the bottom of the vessel by means of a hollow shaft. The...  
WO/1998/058838A1
A stern mounted vertically adjustable propeller and rudder marine drive. The aft end of a propeller shaft (24), the propeller (38), the rudder (60) and a skeg (42) are vertically movable to adjust a boat's draft for use in the water and ...  
WO1998029303A3
The airship has a fuselage (1) built as an aerostatic buoyant body, having propellers (11,12,13,14) with respective shafts (121) and drive units (7,8,9,10). The respective propeller shaft (121) rotation plane (113) can be tilted all roun...  
WO/1998/047760A1
The invention relates to a composite material comprised of a particle foam made from expanded polypropylene (EPP), of at least one fibrous layer, and of at least one layer made of a polymer which is applied on said fibrous layer. An inti...  
WO/1998/042564A1
A guard (10) for a marine propeller (14) utilizing a flange (18) found on the lower drive unit or power leg (12), thereof. The guard includes a cage (24) which at least partially encloses the propeller and a support member (36) for holdi...  
WO/1998/038085A1
A differential multipropeller system (100, 200, 300, 400, 600, 700) comprises a drive shaft (103, 203, 303, 403, 605, 702) as well as a first propeller (101, 601, 707) and a second propeller (102, 602, 708). The propellers are arranged c...  
WO/1998/032652A1
Propulsion device comprising a number of profiled propeller blades (6) being circumferentially distributed and being mounted between two discs (4) rotatably arranged around a horizontal shaft (7) in such a way that the axes of the blades...  
WO/1998/030440A1
A steering and/or propulsion device for a vessel, preferably for installation in the bow portion of the vessel, comprising a propeller nozzle assembly (1) adapted to be rotated 360� about its vertical axis (2). The propeller/nozzle ass...  
WO/1998/029303A2
An aircraft has a fuselage substantially designed as an aerostatic lifting body and combined lifting and propelling devices joined to the fuselage, provided with propellers and forming driving units which can tilt between a lifting posit...  
WO/1998/029300A1
A contra-rotating propeller unit has two sets of propellers (8, 39) driven in opposite directions, respectively by a single drive shaft (2). One set of propellers (8) is directly driven by the shaft (2) which passes through a carrier (12...  
WO/1998/022329A1
The subject of the invention is a device to utilise the flow of ambient substances (1) such as air, water, snow, slush, dust, mud, sand, in a mobile conveyance propelled by enclosed wheels or tracks (5), wherein said flow (1) is introduc...  
WO/1998/019907A1
Dual propeller propulsion system for water crafts having two propellers (3, 4) fitted in the same axis outside the ends of an underwater housing (2) configured as a gondola so as to facilitate flow, said housing being placed under the hu...  
WO/1998/013256A1
Improvement in water craft of single-hull type or multi-hull type and having a drive apparatus or a hub (7) carrying a ventilated propeller (6) of so called 'surface piercing' type, in which the drive or the hub (7) with the surface pier...  
WO/1998/013257A1
Novel apparatus for rendering a watercraft propulsion system universal. One embodiment of the invention comprises a rotary shaft (62); a propeller (66) detachably attached to one end of the rotary shaft (62), the other end of the rotary ...  
WO/1997/049604A1
A ship has two ship's screws (4, 6). One screw (4) is fixed to a first hollow screw shaft (3) and the second screw (6) is fixed to a second screw shaft (5) which runs concentrically inside the first screw shaft (3). To drive the screw sh...  
WO/1997/049605A1
A ship propulsion system has a pod-like housing (1) mounted on the bottom of the ship hull and a synchronous motor (7, 10) arranged in the housing (1). In order to improve propulsion efficiency at propulsion powers of about 10 MW, the ro...  
WO/1997/048597A1
A lift-generating device for a power boat includes a boundary (4) of semi-circular form in cross section mounted beneath the propeller (5) of the boat so that the propeller (5) produces a high-speed water flow over the upwardly facing su...  
WO/1997/046445A1
A marine propulsion and steering unit (10) comprises a pod (13) having front and rear ends, a driving machine (14), e.g. a drive motor, accommodated in the pod, a substantially horizontal propeller shaft (15) drivingly connected to the d...  
WO/1997/043173A1
A propulsive transmission system comprising contra-rotating propellers which are connected to a planet gear in the hub. The planet gear is driven by a horizontal or slightly angled shaft to the sun gear. The sun gear operates at a rotati...  
WO/1997/041029A1
The propeller tail is intended to be applied to yachts, fishing boats and the like, and is designed to be mounted either internally or externally with respect to the boat itself. The propeller tail structure is based on two truncated gro...  
WO/1997/038898A1
A vessel has propeller(s), in which the propeller is provided in a tunnel, that is formed at the bottom of the vessel. The rear end of the tunnel is lower at least 5cm than the no-loaded waterline of vessel, and higher than the front end...  
WO/1997/030892A1
The invention concerns a method of optimizing the efficiency of ships with bow and stern propellers and an arrangement for adjusting the speed of rotation of the bow propeller. Ferry boats in particular can have identical drives at the b...  
WO/1997/030813A1
The phase control mechanism includes first gears (3, 4) coupled to the output shafts which are to be phase controlled. A transfer gear (5) is provided for rotation or operation independent of the input and is coupled to the first gears (...  
WO/1997/027102A1
The invention relates to a method and apparatus for installing a propeller assembly (1) in an opening (9) in the bottom (8) of a swimming vessel and for removing the propeller assembly (1) from the opening (9). The propeller assembly (1)...  
WO/1997/026181A1
According to the invention, an active rudder, which can be rotated through U 180� and is mounted at the stern of a watercraft (WF), preferably a sailing yacht, such that it can be moved into and out of an opening in the hull (100), tak...  
WO/1997/024254A1
A ship of a displacement type with a pointed bow and a transom stern, a longitudinal length of L, and defining a base plane and a design waterline plane, the ship comprising: approximately sinusoidal waterlines; a surface extending from ...  
WO/1997/020733A1
A transverse or longitudinal screw (1) combined with inlet and outlet means (2) inside an elongate shaft (3) in the hull (4) of a surface or underwater craft. The screw comprises a male part (6) extending transversely to axis ZZ' and hav...  
WO/1997/020730A1
There is described a tugboat (1) having three azimuthal propelling units (10, 20, 30), two (10, 20) of which are juxtaposed below the stem (7), symmetrically relative to the main plane of symmetry (2), while the third azimuthal propellin...  

Matches 701 - 750 out of 4,972