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| Number | Title | Issue Date |
| 7641526 | Vessel and underwater mountable azimuthing thruster A floating marine vessel, an azimuthing thruster assembly, and an underwater mountable azimuthing thruster, having a movable and removable canister and a double mechanical seal and bearings enabling atmospheric pressure lubricating fluid to lubricate the thruster an... | 01/05/2010 |
| 7371140 | Protective marine vessel and drive A marine vessel and drive combination includes port and starboard tunnels formed in a marine vessel hull raising port and starboard steerable marine propulsion devices to protective positions relative to the keel. ... | 05/13/2008 |
| 7146921 | Rotationally retractable propeller A retractable thruster for a surface or submersible vessel, having thruster a propulsion assembly with a rigid structure secured to a cylindrical turbine. The rigid structure contains a motor suitable for rotating at lease one propeller inside the turbine via at lea... | 12/12/2006 |
| 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 which is mounted to the engine. Both the engine and the drive unit are ... | 06/07/2005 |
| 6866553 | Retractable system for stowing away the propulsion components for a vessel A retractable propulsion system for s vessel has an engine (2) mounted within the hull (1; 101) with a drive shaft connected through a universal joint (6) to a propeller shaft (3; 103), supported so that it can rotate and slide in a beari... | 03/15/2005 |
| 6769372 | Light transport ship The present invention provides a large transport ship in which the shape of a ship bottom 1a from a bow 1h to a stern 1t, when viewed on a cross-section perpendicular to the longitudinal direction of the ship bottom 1... | 08/03/2004 |
| 6682378 | Pivotally suspended, variable depth, propeller drive for boats An inboard propeller drive system for shallow water boats comprising a stern tunnel and a propeller drive shaft sub-assembly. The tunnel protrudes upwardly from the floor of the boat, and has an S-shaped bottom plate immersed in water. The sub-assembly in... | 01/27/2004 |
| 6458004 | Electric propulsion systems An electric propulsion system includes a first tube fixedly secured to a hull of a boat and having an upper end adjacent an opening in a surface of the boat and a lower end adjacent an opening in the hull. A second tube is concentrically disposed in the f... | 10/01/2002 |
| 6439936 | High retraction marine thruster A floating marine structure, such as a drillship (10 ) includes at least one thruster (14, e.g.) which includes a thruster head (22) having a propeller (102) which is adjustable to vary the angular relation to the drillship hull (11) of the horizontal dir... | 08/27/2002 |
| 6383043 | Vertical trim system for marine outdrives A vertical trim system for a marine inboard-outboard outdrive includes a transom plate (12) and arms (18, 20) having first ends attached to the transom plate and second ends attached to a gibal ring (76) of the outdrive.... | 05/07/2002 |
| 6375524 | Vessel comprising a retractable thruster A retractable thruster (5) is connected to a lifting device for retracting the thruster in two stages, the lifting device in the first stage lifting the thruster to a level at or near the keel (7) of the vessel, the second stage including lifting the thru... | 04/23/2002 |
| 6361386 | Apparatus for removing a propeller assembly from and for opening in the bottom of a swimming vessel 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) comprises an unde... | 03/26/2002 |
| 6067697 | Method for removing a propeller assembly from and for mounting the same in an opening in the bottom of a swimming vessel The invention relates to a method and apparatus for installing a propeller assembly in an opening in the bottom of a swimming vessel and for removing the propeller assembly from the opening. The propeller assembly comprises an underwater section including... | 05/30/2000 |
| 6056610 | Retractable boat or ship thruster provided with means for preventing pivoting The present invention relates to a transverse or longitudinal thruster made for a floating or submersible vessel. The thruster includes a male part extending transversely to the axis ZZ' and of shape complementary to a female shape of a well having a long... | 05/02/2000 |
| 5904601 | Propulsion unit A ship propulsion unit includes a propeller pod (14) provided with a propulsion propeller (15) and a turnable shaft (2) attached to the propulsion pod. The turnable shaft is journalled in the hull (1) of the ship by a rotation bearing (4) mounted in the h... | 05/18/1999 |
| 5848921 | Power driven vessel having propelling power mounting apparatus A power driven vessel is able to accommodate various types of power drive. The power driven vessel includes a vessel main body, power drive having an engine and a driving unit, an attachment member for mounting the power drive thereon, an insert recess po... | 12/15/1998 |
| 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 housing to allow water to be pumped through the housing a... | 11/17/1998 |
| 5833502 | Boat construction A boat construction incorporating unique structural features for improved performance at a variety of speeds and water depths. The hull of the boat incorporates a deep-V forward section and a rear tunnel section extending longitudinally rearward from a mi... | 11/10/1998 |
| 5671691 | Rudder device A rudder device for water-going craft or aircraft, where there is provided in the vessel a cavity (21) which is open to the outside of the vessel. In the cavity there is provided a body (2) which can rotate about an axis (3), which extends in the cavity (... | 09/30/1997 |
| 5435762 | Drive unit for watercraft Propulsion unit for watercraft, with a drive shafting (3) between a drive motor (2) and a propulsive device (1), wherein this propulsion unit with vertical drive shafting is arranged in the shaft-like housing (12) of the hull (14) such that the distance b... | 07/25/1995 |
| 5409409 | Marine apparatus Marine apparatus comprising a boat hull including opposed walls extending generally in the fore and aft direction, and a mounting bracket connected to the walls for supporting a propulsion unit for pivotal movement relative to the boat about a generally h... | 04/25/1995 |
| 5397255 | Boat propulsion unit with a propulsion propeller arranged under the boat's bottom A boat propulsion unit has a propeller which can be withdrawn into a sleeve to a position above the plane of the boat's bottom and enclosed by a cover plate. The water in the closed sleeve can be pumped out, so that the emptied sleeve is accessible for in... | 03/14/1995 |
| 5315950 | Amphibious vehicle An amphibious vehicle has a watertight vehicle body and at least two elongate buoyancy tanks, with a mechanism for displacing the buoyancy tanks between operative positions, in which the buoyancy tanks extend parallel to opposite sides of the vehicle body... | 05/31/1994 |
| 5125858 | Retractable propulsor for boats The propulsor comprises a main engine, a fixed tubular part, a main transmission which ends with a substantially vertical shaft which operates a bevel gear on the substantially vertical shaft which operates a bevel gear pair on the substantially horizonta... | 06/30/1992 |
| 5123614 | Anti-deployment device for a ram air turbine An anti-deployment device and method for preventing inadvertent deployment of a ram air turbine of an aircraft during servicing or repair of turbine employ an anti-deployment pin which can be manually inserted in a support arrangement for the pin on the a... | 06/23/1992 |
| 5030146 | Mounting structure of a propulsion device for an inflatable boat Disclosed is a mounting structure of a propulsion device for an inflatable boat, including a propulsion assembly, which comprises a power device and a driven propeller; a sleeve body, whose internal diameter is larger than the longitudinal length of the p... | 07/09/1991 |
| 4913079 | Yacht The invention relates to a yacht. The yacht has a body, and this body comprises at least outer and inner skins formed of a resin material incorporating reinforcement fibers therein, and a formed styrol material as a foamed synthetic resin member filled be... | 04/03/1990 |
| 4781633 | Retractable drive mechanism for marine vessels Disclosed is a drive assembly for mounting on a marine vessel, movable between first and second configurations. In the first configuration, the drive assembly, which may include a propeller, is at least partially withdrawn from the water. In the second co... | 11/01/1988 |
| 4734066 | Trolling motor elevating apparatus An electric trolling motor is journalled by a rotatable shaft into the hull and deck of a fishing boat and a foot control disk on the shaft is positioned on the deck for control of the steering of the boat by a fisherman with both hands employed with a fi... | 03/29/1988 |
| 4668195 | Bow motor assembly and motor lift mechanism A boat is equipped with a motor assembly mounted on a housing in the bow of the boat. The housing has a compartment with a bottom opening accommodating a motor and propeller assembly. A mechanism is used to selectively move the motor and propeller assembl... | 05/26/1987 |
| 4668197 | Retractable auxiliary and emergency propulsion device for small craft Retractable auxiliary and emergency propulsion device for small craft comprising a hydraulic motor with its own propellor, powered by a hydraulic pump applied either to a motor installed on the craft just for this purpose and of considerably reduced power... | 05/26/1987 |
| 4634389 | Vessel having demountable submerged propeller unit The invention concerns a hull and a submerged propeller unit demountably fitted to the hull and continuously rotatable through 360° of azimuth relative to the hull to give full thrust in any required direction. An aperture in the hull is surrounded by a ... | 01/06/1987 |
| 4573929 | Propeller device for a ship A propeller device for a ship rotates 360° and may be raised when it is not in use. The transmission system of the propeller device includes a drive shaft for the propeller device, which is placed in the upper part of such propeller device. The shaft is ... | 03/04/1986 |
| 4529386 | Bow motor assembly A boat is equipped with a motor assembly mounted on a housing in the bow of the boat. A power driven drive operates to move the propeller drive of the motor up into and down out of the housing. A pair of doors hinged to the bow and connected to the motor ... | 07/16/1985 |
| 4348977 | Water conveyance A water conveyance having two hull members spaced from each other and carrying a hydrofoil toward the stern thereof and an airfoil or wing toward the bow. The hydrofoil and airfoil cooperate to lift the hull members from the water to reduce water resistan... | 09/14/1982 |
| 4274827 | Propulsion system for a marine vessel A propulsion system including a steerable propeller which can be vertically lowered out of and raised into a vertical protecting sleeve is disclosed. The propeller is driven from a motor lying above deck of a ship driven by the propeller and a shaft conne... | 06/23/1981 |
| 4175511 | Tugboat or the like A steerable propeller arrangement in a watercraft wherein the propeller is mounted in the forward one-half of the hull of the watercraft. The steerable propeller projects downwardly from the bottom portion of the hull and is pivotal about 360°. The prope... | 11/27/1979 |
| 4075971 | Motor housing for a retractable propulsion unit for boats A device for clamping the motor housing of a retractable propulsion unit for a boat, wherein the housing is clamped by four upper inclined articulated bolts producing thrusts with both vertical and horizontal components and by means of four lower articula... | 02/28/1978 |
