Rudders Patents (Class 114/162)
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Patent number: 8100075Abstract: A rudder control assembly used in a boat comprises a control unit having a left control plate and a right control plate; a control unit having a left connecting unit and a right connecting unit; a front end of the control unit being connected to the left control plate and the right control plate; a rudder unit installed at a tail end of the boat; the rudder unit including a right shaft; a rudder body; a left extension plate, a right extension plate, a driving plate and a rudder; The right shaft is connected to the boat body and rotatable axially. A lower end of the right shaft is connected to the driving plate. The driving plate is connected to the left connecting unit and the right connecting unit. The left connecting unit and the right connecting unit are hard rods.Type: GrantFiled: November 15, 2005Date of Patent: January 24, 2012Inventor: Nien Fu Wang
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Patent number: 8091498Abstract: The rudder arrangement for ships comprises a twisted and balanced rudder blade having a slender profile and a low profile thickness and comprising a propeller facing the rudder blade. A rudder pipe is located in the upper region of the rudder blade with rudder post located therein, wherein the rudder blade comprises two superposed rudder blade sections having different heights whose front nose strips facing the propeller are offset in such a manner that one nose strip is offset to port or starboard and the other nose strip is offset to starboard or port. The two side wall surfaces of the rudder blade converge into an end strip facing away from the propeller and have different arc profiles.Type: GrantFiled: September 25, 2008Date of Patent: January 10, 2012Assignee: becker marine systems GmbH & Co. KGInventor: Dirk Lehmann
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Patent number: 8060265Abstract: There is provided a boat (200) including a hull (20), and two engines (30, 50) couplable to rotationally drive mutually spaced separate corresponding propeller assemblies for providing thrusts. Directions of the thrusts are angularly adjustable (?1, ?2) relative to the hull (20). A control unit (70) receives first and second user commands (S1, S2) and sends corresponding signals for controlling powers (P1, P2) coupled from the engines (30, 50) to their propeller assemblies. The control unit (70) determines a difference in power (?P) to be coupled to the propeller assemblies as a function of the first and second user commands (S1, S2). The control unit (70) controls coupling of power (P1, P2) to the propeller assemblies so that the propeller assemblies develop a difference in thrust which is a function of the difference in power (?P).Type: GrantFiled: September 14, 2007Date of Patent: November 15, 2011Assignee: AB Volvo PentaInventors: Oddbjorn Hallenstvedt, Anders L Larsson
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Publication number: 20110271890Abstract: A rudder assembly for a boat has a securing base, a rudder board and at least one engaging bolt. The rudder board is mounted detachably on the securing base and has a bottom and two rudder hooks. The rudder hooks are formed respectively on two ends of the bottom and are connected securely to the securing base with the at least one engaging bolt. The at least one engaging bolt is mounted detachably on the securing base and engages respectively at least one of the rudder hooks on the rudder board. Accordingly, a rudder board can be conveniently detached from the securing base even while an inflating boat is at an inflated condition.Type: ApplicationFiled: May 10, 2010Publication date: November 10, 2011Inventor: Chun-Chung TSAI
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Publication number: 20110223817Abstract: A rudder assembly for use with a jet drive motor for a watercraft. The rudder assembly has at least one support member and at least one steering stabilizer member which extend from the at least one support member. The at least one steering stabilizer member has a longitudinal axes which extends in a direction which is essentially parallel to a longitudinal axis of the motor and essentially perpendicular to a longitudinal axis of the at least one support member. The at least one steering stabilizer member having sufficient surface area to cooperate with water when the watercraft is travelling at slow speeds, wherein the rudder assembly provides an operator of the watercraft with improved steering control and response at low speeds.Type: ApplicationFiled: March 8, 2011Publication date: September 15, 2011Inventor: Robert Daniel GRIFFIN
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Patent number: 8019498Abstract: An instruction value conversion section (31) of an operation target calculation section (30) converts an instruction signal from a joystick (25). In order to obtain a movement mode of a ship intended by an operator, a target propeller speed calculation section (32) calculates, using each converted value, target rotation speed of right and left propellers (13) and the propeller (14b) of a thruster (14). At a main engine operation control section (40), a slip rate determination section (41) calculates the slip rate U of a clutch mechanism (120) of a marine gear (12) in order to rotate the propellers (13) at the target rotation speed. A drive control section (42) controls operation of the main engine (11) and the clutch mechanism (120). Further, in a thruster operation control section (50), a drive control section (52) controls drive of the propeller (14b) in the rotational direction determined by an operation determining section (51).Type: GrantFiled: July 3, 2006Date of Patent: September 13, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takayoshi Yamazaki, Atsuyuki Tsuzuki, Kouichi Iguchi
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Patent number: 7961068Abstract: A breakaway device for locking connected objects in relation to one another comprises a first magnetic field structure attached to a first object and a second magnetic field structure attached to a second object. The first magnetic field structure becoming attached to the second magnetic field structure when substantially aligned. The first structure and the second structure becoming detached when subjected to a force that overcomes a spatial force between the first magnetic field structure and the second magnetic field structure. The first magnetic field structure and the second magnetic field structure having magnetic field sources with polarities and positions in accordance with a code corresponding to a desired spatial force function.Type: GrantFiled: September 30, 2010Date of Patent: June 14, 2011Assignee: Cedar Ridge Research, LLC.Inventors: Larry W. Fullerton, Mark D. Roberts, Mitchell Williams
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Publication number: 20110132247Abstract: An apparatus and associated method relating to a tiller for steering a boat. The tiller has an elongated body proximally connected to a steering mechanism portion of the boat and cantilevered therefrom, terminating at a distal end that is ergonomically responsive to a sailor's manual steering of the boat. The tiller also has a navigational device mounted to the body and thereby operably presented to the sailor at a desired viewing angle to facilitate the sailor reading an output display of the navigational device while steering the boat.Type: ApplicationFiled: December 6, 2010Publication date: June 9, 2011Inventor: John Edward Stasieluk
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Patent number: 7950341Abstract: The ship body of the present invention comprises at least two levels. One is an upper level that comprises a floatable body. The other is a lower level. The lower level is intended to be submerged under water in normal use. The lower level comprises at least two parallel, essentially vertical walls, a floor, and a ceiling connecting the at least two parallel essentially vertical walls. The front end and a rear end of the lower level are open to allow water to enter through the front end and exit through the rear end of the lower level.Type: GrantFiled: September 25, 2008Date of Patent: May 31, 2011Inventor: Alexandr Konstantinovskiy
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Patent number: 7926435Abstract: Disclosed herein is a spade rudder, which is intended to relieve bending moment generated by a rudder, and to suppress vibrations generated from the rudder due to a propeller, in the case of a large ship. The spade rudder has a rudder stock for rotating a rudder, and a vertical bearing provided on a side surface of the rudder stock. The spade rudder further includes a stock gudgeon provided on a side surface of the vertical bearing, a horizontal bearing provided under the stock gudgeon, and a horizontal bearing housing provided at the junction of the rudder stock and the horizontal bearing, which are at right angles to each other, and dispersing a bending moment acting on the rudder.Type: GrantFiled: December 18, 2006Date of Patent: April 19, 2011Assignee: Samsung Heavy Ind. Co., Ltd.Inventors: Young-hak Seo, Sung-jin Kim, Byeong-Seog Kang
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Publication number: 20110023764Abstract: In a linkage device for flap rudders for watercraft, in particular ships, a first bearing housing includes a sliding piston and a first sliding bearing, and a second bearing housing includes a linkage pin and optionally a second sliding bearing. The first and the second bearing housings and/or the sliding piston and the linkage pin and/or optionally the first and the second bearings each have substantially the same diameter and/or substantially the same width and height.Type: ApplicationFiled: July 29, 2010Publication date: February 3, 2011Applicant: BECKER MARINE SYSTEMS GMBH & CO. KGInventors: Manfred Nagel, Jorg Hiesener
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Patent number: 7878136Abstract: 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, minimal loss of speed, resistance to weed entanglement and optimized steering, in both forward and reverse, especially when used with surface piercing propellers.Type: GrantFiled: February 12, 2008Date of Patent: February 1, 2011Assignee: Brooks Stevens Design Associates, Inc.Inventor: David Gruenwald
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Patent number: 7878135Abstract: A kick-up rudder mechanism for small, tiller-steered sailboats. The rudder has a two-position pivot that allows the rudder to kick up and drop back down automatically when it hits and then clears an underwater obstacle; to be raised and lowered manually with fore-and-aft motion of the tiller; and to be secured against unwanted kick-up with a vertically releasable fore-aft locking connection between the tiller and the rudder housing.Type: GrantFiled: May 8, 2008Date of Patent: February 1, 2011Assignee: Nauticraft CorporationInventor: Curtis D. Chamers
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Publication number: 20100251951Abstract: In order to achieve improved properties in a rudder stock for rudders for water vehicles, at least the lower end area of the rudder stock to be inserted into the rudder and to be mounted in the rudder has a non-metallic material.Type: ApplicationFiled: April 1, 2010Publication date: October 7, 2010Applicant: BECKER MARINE SYSTEMS GMBH & CO. KGInventor: Henning Kuhlmann
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Patent number: 7806067Abstract: Disclosed herein is a thrust fin for ships which recovers lost energy caused by rotational flow generated behind a propeller, and converts it into thrust. The thrust fin of the present invention has a simple shape, enhances propulsive efficiency of the ship, and can be applied to a real ship thanks to the simple installation thereof, to maximize thrust of the ship. The thrust fin is mounted to a front portion of the rudder of the ship such that left and right sides of the thrust fin, which are integrated with each other into a single body, are asymmetrical. A vertical position, at which the thrust fin is mounted to the rudder, is at an optimum position as determined in consideration of the shape of the rudder and hydrodynamic characteristics.Type: GrantFiled: December 8, 2005Date of Patent: October 5, 2010Assignee: Hyundai Heavy Industries Co., Ltd.Inventors: Keh-Sik Min, Bong-jun Chang, Hong-gi Lee
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Patent number: 7806068Abstract: A rudder (1) adaptable to a rudder shaft (4) in a rudder mechanism for changing the direction of motion of a marine vehicle.Type: GrantFiled: May 19, 2008Date of Patent: October 5, 2010Inventor: Mehmet Nevres Ulgen
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Publication number: 20100248566Abstract: A rudder of aquatic carrier is described, which includes a fixing component, a retractable component, and a first elastic component. The retractable component is pivoted to the fixing component; the first elastic component connects the fixing component and the retractable component and supports the retractable component. When the retractable component experiences an external force, the first elastic component is compressed and causes the retractable component to rotate with respect to the fixing component. When surfers or swimmers are hit by the rudder of aquatic carrier described in this invention, the rotation of the retractable component with respect to the fixing component reduces the force exerted on them, thus preventing them from being hurt. In addition, an aquatic carrier with a rudder is also described.Type: ApplicationFiled: March 29, 2010Publication date: September 30, 2010Applicant: GRANDOT TECH. INCORPORATEDInventors: Dave Wang, Angela Lu, Christine Wang, John Wang
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Patent number: 7802531Abstract: A rudder for ships having a rudder blade which has a leading edge and a trailing edge. The rudder blade has two superimposed rudder blade sections; the leading edge sections of which are offset such that a first leading edge section is offset port or starboard and a second leading edge section is offset starboard or port. The first leading edge section has a port-sided offset surface which projects over the second leading edge section, and the second leading edge section has a starboard-sided offset surface which projects over the first leading edge section. A flow body is configured so that its dimensions are adapted to the dimensions of the offset surfaces. The flow body covers the offset surfaces and is arranged in the area of both offset surfaces.Type: GrantFiled: February 14, 2008Date of Patent: September 28, 2010Assignee: becker marine systems GmbH & Co. KGInventors: Mathias Kluge, Henning Kuhlmann
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Patent number: 7775173Abstract: A rudder mechanism for use upon a sailboat is capable of being raised or lowered at the discretion of the boater using a single connected cable operating system, so that the system may be called a “one-pull” system for both raising and for lowering the rudder. The rudder is preferably pivotal, using the cable operating system, greater than 90 degrees, and more preferably, about 180 degrees. A self-contained gas cylinder may aid in the raising and lowering operation and to dampen and smooth the vertical, pivotal movement of the rudder. The cylinder also may be utilized to retain the rudder in a raised or lowered position, once the boater/sailor has purposely placed the rudder in that position, and to return the rudder to the fully-lowered position after grounding has temporarily “kicked-up” the rudder.Type: GrantFiled: November 2, 2007Date of Patent: August 17, 2010Inventor: Joel F. Santarone
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Publication number: 20100186648Abstract: A twisted rudder blade for a ship having a twist that is adapted to the configuration of the flow of the water in the region of the rudder blade if no propeller in operation is disposed in front of the rudder blades in the direction of travel of the ship.Type: ApplicationFiled: October 8, 2007Publication date: July 29, 2010Inventors: Aloys Wobben, Rolf Rohden, Dirk Holtkamp
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Patent number: 7748335Abstract: The hull design for this invention includes a sharp bow, deep V concave shape (“VC”) monohull with a reverse curvature running from a flat straight keel to the upper rail and also encompassing the entire hull length from the bow to the stern. The pointed bow with a bow rudder and a deep flat keel results in a smooth hull for guiding a water column free of a wave and water turbulence to the stern. A mainsail mast and a mizzen shroud slide transversely within limits to promote sail proximity and to achieve increased speed via an improved draft. The mizzen foresail is tacked by moving the mast windward; detaching the mizzen shroud; moving it forward to perform a tacking maneuver, and then moving it aft to a leeward position in relation to the mainsail; and re-attaching the mizzen mast to the moveable traveler.Type: GrantFiled: July 5, 2006Date of Patent: July 6, 2010Inventor: Thomas W. Carne
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Publication number: 20100167602Abstract: In one possible implementation the invention is electrical generating system, having: a wind power assembly having at least two rotatable propulsion systems: said wind power assembly further having an air pump, the air pump being connected to the wind power assembly and creating an air flow when rotatable propulsion systems rotate in response to wind; and an air powered generator connected to the wind power assembly, the air powered generator capable of creating electrical current as a result of the air flow from the wind power assembly.Type: ApplicationFiled: December 15, 2009Publication date: July 1, 2010Inventor: Thang D. Vu
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Patent number: 7721665Abstract: A combined hull and steering mechanism for a marine vessel has a substantially rectangularly-shaped upper hull joined to a lower hull that is dual-tapered from its sidewalls to both its forward and aft portions. A directional thrust steering mechanism having a pair of vertical rudder blades positioned on either side of a conventional propeller extending from the centerline of the lower hull directs the water from the propeller, thus enabling the vessel to move more efficiently and with greater maneuverability in both forward and reverse directions. The dual-tapered hull permits a significantly better flow of water to and from the propeller and steering mechanism of the vessel, particularly when operating in reverse, thereby allowing the vessel to turn 360° in its own length.Type: GrantFiled: April 24, 2009Date of Patent: May 25, 2010Assignee: AJ Marine, Inc.Inventor: Dennis Schreiber
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Patent number: 7717052Abstract: A high performance full spade rudder for ships includes a rudder blade, a rudder trunk and a rudder post. The rudder blade widens from the leading edge to a central area which constitutes the widest point of the rudder profile. The rudder blade profile tapers from the central area to a narrow rear area and widens again from the rear area to the trailing edge. A bearing is placed in an inner longitudinal bore of the rudder trunk for bearing the rudder post, wherein the bearing penetrates with its free end into a recess, taper or the like in the rudder blade. No bearing is provided between the rudder blade and the rudder trunk. The bearing for the rudder post is placed in the rudder trunk in the area of the free end of the rudder trunk.Type: GrantFiled: February 29, 2008Date of Patent: May 18, 2010Assignee: becker marine systems GmbH & Co., KGInventors: Mathias Kluge, Thomas Falz
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Publication number: 20100083888Abstract: An apparatus is provided for dampening rudder vibration of a motorboat. The apparatus may include a tiller assembly rotatable about a pivot point adjacent the stern of the motorboat, the tiller assembly including a tiller arm extending in a first direction from the pivot point and configured to be rotated about the pivot point by a user, and/or a damper mounted on the tiller assembly extending in a second direction from the pivot point. The damper may be configured to rotate integrally with the tiller arm, and the damper may include a mass that is sufficient to dampen vibrations of the tiller. A method of using the apparatus for dampening rudder vibration is also disclosed.Type: ApplicationFiled: October 2, 2009Publication date: April 8, 2010Applicant: Malibu Boats West, LLCInventor: Daniel L. Gasper
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Patent number: 7689790Abstract: A copy source storage controller received write data added with a time and issued from a host computer transfers the write data with the time to a copy destination storage controller. If there are a plurality of copy destination storage controllers, a representative copy destination storage controller compares times of write data copied to the plurality of copy destination storage controllers, and writes the write data in copy destination logical volumes in the sequential order of time. The representative copy destination storage controller judges that integrity of the write data is established, if a communication procedure is established with the copy destination storage controller and if the statuses of the copy source/destination logical volumes are coincident. In remote copy which guarantees integrity of write data and traverses a plurality of storage controllers, it is possible to judge at an optional time point whether integrity of write data can be guaranteed.Type: GrantFiled: July 24, 2006Date of Patent: March 30, 2010Assignee: Hitachi, Ltd.Inventors: Nobuhiro Maki, Yuri Hiraiwa, Yoshiyuki Nishi, Katsuhisa Miyata, Akira Deguchi
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Publication number: 20100071607Abstract: The ship body of the present invention comprises at least two levels. One is an upper level that comprises a floatable body. The other is a lower level. The lower level is intended to be submerged under water in normal use. The lower level comprises at least two parallel, essentially vertical walls, a floor, and a ceiling connecting the at least two parallel essentially vertical walls. The front end and a rear end of the lower level are open to allow water to enter through the front end and exit through the rear end of the lower level.Type: ApplicationFiled: September 25, 2008Publication date: March 25, 2010Inventor: ALEXANDR KONSTANTINOVSKIY
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Publication number: 20100037809Abstract: The rudder arrangement for ships comprises a twisted balanced rudder blade having a slender profile and having a low profile thickness and comprising a propeller facing the rudder blade and a rudder pipe located in the upper region of the rudder blade with rudder post located therein, wherein the rudder blade comprises two superposed rudder blade sections having different heights whose front nose strips facing the propeller are offset in such a manner that one nose strip is offset to port or starboard and the other nose strip is offset to starboard or port, wherein the two side wall surfaces of the rudder blade converge into an end strip facing away from the propeller and have different arc profiles.Type: ApplicationFiled: September 25, 2008Publication date: February 18, 2010Inventor: Dirk Lehmann
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Patent number: 7661379Abstract: The invention relates to a steering and propulsion arrangement for a ship. The inventive steering and propulsion arrangement comprises a screw propeller 3 and a rudder 6. A streamlined propulsion bulb 10 is made integral with or fixedly connected to the rudder. The invention also relates to a ship 2 provided with the inventive arrangement.Type: GrantFiled: March 29, 2006Date of Patent: February 16, 2010Assignee: Rolls-Royce AktiebolagInventors: Göran Pettersson, Kåre Krøvel Nerland
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Publication number: 20090311924Abstract: There is provided a ship, in particular a cargo ship. It has a plurality of Magnus rotors, wherein associated with each of the plurality of Magnus rotors is an individually actuable electric motor (M) for rotating the Magnus rotor, wherein associated with each electric motor (M) is a converter (U) for controlling the rotary speed and/or the rotary direction of the electric motor (M).Type: ApplicationFiled: June 16, 2006Publication date: December 17, 2009Inventor: Aloys Wobben
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Patent number: 7591230Abstract: In a rudder for ships composed of a rudder blade with a rudder post (40) held and supported in a rudder trunk (20), the rudder trunk (20) is made of a fiber composite material and is inserted into a nautical outer trunk tube (90) made of steel or of another appropriate material prepared by a shipyard, extending into the lower edge of the head box and inserted into the rudder blade (30). After alignment of the rudder trunk (20) in the nautical trunk tube (90), the intermediate space between both components (20, 90) is cast with a cast resin, or both components (20, 90) are bonded together.Type: GrantFiled: December 21, 2007Date of Patent: September 22, 2009Assignee: becker marine systems GmbH & Co. KGInventors: Mathias Kluge, Henning Kuhlmann
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Publication number: 20090198395Abstract: A rudder system for a kayak includes a rudder configured for pivotal attachment to the kayak and a propeller housed in and extending from the rudder. A battery is in electrical communication with the propeller to selectively power the propeller. The kayak system includes an input in electrical communication with the propeller to operatively actuate the propeller, the input being accessible from inside the kayak. A sensor is operatively coupled to the kayak to determine a relative speed thereof. A processor is in data communication with the sensor and propeller, the processor including programming to determine a necessary propeller speed. The processor is in data communication with the input so as to establish the desired relative speed of the kayak. The propeller includes at least two blades and the propeller motor is housed in the rudder.Type: ApplicationFiled: February 4, 2008Publication date: August 6, 2009Inventors: James Winsky, Merle W. Winsky
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Patent number: 7568443Abstract: A rudder and dynamic trim adjusting apparatus for a boat includes a rudder, a rudder shaft extending from the rudder and being rotatable about a longitudinal axis thereof to rotate the rudder, trim fins extending from the rudder, along at least one transverse axis transverse to the longitudinal axis, and a mechanism connected to the trim fins, and being operable, independently of rotation of the rudder shaft to rotate the trim fins about the at least one transverse axis. Methods of controlling an attitude of a boat hull are provided.Type: GrantFiled: November 9, 2006Date of Patent: August 4, 2009Inventor: Jeff Walker
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Patent number: 7544109Abstract: A propeller system for a boat includes a housing adapted to be mounted to a stern of the boat and having a receiving chamber inside and waterway at the bottom side thereof, a propeller rotatably disposed in the waterway of the housing, a driving device mounted in the receiving chamber of the housing and having a driving member and a linking member pivotally coupled to the driving member, and a guide ring connected to the linking member of the driving device and located in the waterway of the housing in such a way that the guide ring surrounds the blades of the propeller and is pivotable relative to the propeller. Thus, the propelling system has the advantage of increasing the utilization of the internal space of the boat.Type: GrantFiled: September 24, 2007Date of Patent: June 9, 2009Assignee: Solas Science & Engineering Co., Ltd.Inventor: Yeun-Junn Lin
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Patent number: 7540253Abstract: A boat steering system provides an operator with excellent efficiency and an excellent operation feel during direction guide member deflection by considering and making adjustments based on a running status of the boat. An ECU controls a direction guide member deflection angle limit. The ECU includes and/or communicates with detectors and the like for detecting one or more of an operation status corresponding to a steering wheel operation, a running status of the boat, recognizing a status of an outboard motor, and detecting a status of an electric motor that rotates an outboard motor. The ECU also controls a direction guide member deflection angle limit based on one or more of the detection values.Type: GrantFiled: September 21, 2007Date of Patent: June 2, 2009Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Makoto Mizutani
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Patent number: 7536968Abstract: A combined hull and steering mechanism for a marine vessel has a substantially rectangularly-shaped upper hull joined to a lower hull that is dual-tapered from its sidewalls to both its forward and aft portions. A directional thrust steering mechanism having a pair of vertical rudder blades positioned on either side of a conventional propeller extending from the centerline of the lower hull directs the water from the propeller, thus enabling the vessel to move more efficiently and with greater maneuverability in both forward and reverse directions. The dual-tapered hull permits a significantly better flow of water to and from the propeller and steering mechanism of the vessel, particularly when operating in reverse, thereby allowing the vessel to turn 360° in its own length.Type: GrantFiled: September 15, 2005Date of Patent: May 26, 2009Assignee: AJ Marine, Inc.Inventor: Dennis Schreiber
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Publication number: 20090126614Abstract: A high performance full spade rudder for ships includes a rudder blade, a rudder trunk and a rudder post. The rudder blade widens from the leading edge to a central area which constitutes the widest point of the rudder profile. The rudder blade profile tapers from the central area to a narrow rear area and widens again from the rear area to the trailing edge. A bearing is placed in an inner longitudinal bore of the rudder trunk for bearing the rudder post, wherein the bearing penetrates with its free end into a recess, taper or the like in the rudder blade. No bearing is provided between the rudder blade and the rudder trunk. The bearing for the rudder post is placed in the rudder trunk in the area of the free end of the rudder trunk.Type: ApplicationFiled: February 29, 2008Publication date: May 21, 2009Inventors: Mathias Kluge, Thomas Falz
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Publication number: 20090126613Abstract: A rudder for ships comprising a rudder blade which has a leading edge and a trailing edge. The rudder blade has two superimposed rudder blade sections, the leading edge sections and/or the trailing edge sections of which are offset such that the one leading edge section and/or the one trailing edge section is offset port or starboard and the other leading edge section and/or the other trailing edge section is offset starboard or port and that the one leading edge and/or trailing edge section has a port-sided offset surface which projects over the other leading edge section and/or the other trailing edge section and the other leading edge section and/or trailing edge section has a starboard-sided offset surface which projects over the one leading edge section and/or trailing edge section, a flow body configured in such a manner that its dimensions are adapted to the dimensions of the offset surfaces, which covers the offset surfaces and which is configured in the area of each offset surface.Type: ApplicationFiled: February 14, 2008Publication date: May 21, 2009Inventors: Mathias Kluge, Henning Kuhlmann
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Publication number: 20090124142Abstract: An amphibious vehicle capable of high speeds on the water has a buoyant hull with driven tracks on each side of the hull. The tracks are movable between an upper position and a lower position relative to the hull. The tracks propel the vehicle both for land travel and water travel. Water diverter vanes at the aft end of each track divert water being carried forward by the tracks. Water diverter vanes at the forward ends direct water carried on the upper runs in a downward and aft direction. A cavitation plate is located behind each of the tracks while waterborne and below the waterline of the hull. A tiltable transom flap is attached to the transom and extends rearward.Type: ApplicationFiled: September 8, 2008Publication date: May 14, 2009Applicant: Fast Track Amphibian LLCInventors: Kenneth G. Wernicke, Rodney K. Wernicke, Keith H. Wernicke, Timothy K. Wernicke
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Publication number: 20090124145Abstract: A marine drive system (1) with a partially submerged propeller located at the transom of a boat comprising, for each propeller (2), a forward-opened shroud (20), positioned above the propeller (2), such as to define, between it and the water level, a channel (23) extending longitudinally and having, at the propeller (2), a cross-section whose area decreases from the transom (30).Type: ApplicationFiled: October 6, 2006Publication date: May 14, 2009Applicant: Flexitab S.R.L.Inventor: Brunello Acampora
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Publication number: 20090120343Abstract: The invention relates to a steering and propulsion arrangement for a ship. The inventive steering and propulsion arrangement comprises a screw propeller 3 and a rudder 6. A streamlined propulsion bulb 10 is made integral with or fixedly connected to the rudder. The invention also relates to a ship 2 provided with the inventive arrangement.Type: ApplicationFiled: March 29, 2006Publication date: May 14, 2009Inventors: Goran Pettersson, Kare Krovel Nerland
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Patent number: 7509918Abstract: The rudder post (40) for rudders for water vehicles has end sections (41, 42) made of a metallic material, in particular of wrought iron, and a mid post section (45) made of a nonmetallic material connected with the end sections so that the rudder post has a relatively low weight even for a very big length by maintaining a high flexural strength and torsion stiffness.Type: GrantFiled: February 8, 2008Date of Patent: March 31, 2009Assignee: becker marine systems GmbH & Co. KGInventor: Dirk Lehmann
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Publication number: 20090056610Abstract: In a rudder for ships composed of a rudder blade with a rudder post (40) held and supported in a rudder trunk (20), the rudder trunk (20) is made of a fiber composite material and is inserted into a nautical outer trunk tube (90) made of steel or of another appropriate material prepared by a shipyard, extending into the lower edge of the head box and inserted into the rudder blade (30). After alignment of the rudder trunk (20) in the nautical trunk tube (90), the intermediate space between both components (20, 90) is cast with a cast resin, or both components (20, 90) are bonded together.Type: ApplicationFiled: December 21, 2007Publication date: March 5, 2009Inventors: Mathias Kluge, Henning Kuhlmann
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Publication number: 20080314303Abstract: A rudder (1) for ships with a swivellable rudder blade (2) and a fin (3) hinged thereon as well as with a fin control device (S) having control elements which is placed outside the rudder blade (2) in bearing vicinity between a hull (6) and the rudder blade (2), it is provided that protecting guiding elements (L) are fixed to a ship part laterally from the control elements for the protection of the fin control against external influences such as pressure, stroke and impact shock.Type: ApplicationFiled: May 14, 2008Publication date: December 25, 2008Inventor: Mathias Kluge
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Patent number: 7469168Abstract: A rudder control system having adjustable rudder drive turn off and “turn on,” and component wear monitoring. The rudder drive “turn off” being adjusted in accordance with the rudder stop position relative to the rudder order stop position, thereby improving position accuracy. Frequency of system “turn on” is compared to an acceptable “turn on” frequency for solenoid operation. Should the “turn on” frequency exceed the acceptable “turn on” frequency, the rudder angle at which “turn on” is implemented is adjusted to protect solenoids in the system from burnout. The rate of change of the rudder repeatback signal is monitored. A slow rate of change providing an indication of some component problem.Type: GrantFiled: March 30, 2004Date of Patent: December 23, 2008Assignee: Northrop Grumman Corp.Inventor: Ronald K. Richey
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Publication number: 20080293312Abstract: 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 brushless motor having symmetrical elliptical coils connected with a stator which generate magnetic flux when current is passed through the coils to rotate a rotor for driving the drive shaft. The motor is arranged in a housing having a nozzle connected with a rear portion thereof which surrounds the propeller to reduce cavitation. Cooling fins are provided on the outer surface of the housing to assist with cooling the motor and a motor controller arranged in the housing.Type: ApplicationFiled: May 20, 2008Publication date: November 27, 2008Inventor: Sean Scott
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Publication number: 20080289556Abstract: A rudder (1) adaptable to a rudder shaft (4) in a rudder mechanism for changing the direction of motion of a marine vehicle.Type: ApplicationFiled: May 19, 2008Publication date: November 27, 2008Inventor: Mehmet Nevres ULGEN
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Patent number: 7455311Abstract: A Rudder Hitch Cover that simulates a sailboats rudder assembly in appearance and motion. The Rudder Hitch Cover attaches to a vehicles trailer hitch in such a way as to be easily removable. The rudder blade bracket (24) may swing side to side in response to the vehicles motion. The rudder blade (30) may rotate up if contacted by a fixed object such as a curb or speed bump.Type: GrantFiled: February 7, 2006Date of Patent: November 25, 2008Inventor: Frederick Robert Moore
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Patent number: 7430976Abstract: A retraction system for rudders for small boats having a deck comprising a rudder means connecting said rudder to the rear of a boat enabling said rudder to pivot on an axis such that when the rudder is retracted, it rotates upwardly through about 270° from the normal operating position in the water while twisting about 90° so as to lay essentially flat on said deck.Type: GrantFiled: July 24, 2007Date of Patent: October 7, 2008Assignee: Hobie Cat Co.Inventors: Gregory S. Ketterman, James T. Czarnowski, Jason Christopher Kardas
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Publication number: 20080229993Abstract: Disclosed herein is a spade rudder, which is intended to relieve bending moment generated by a rudder, and to suppress vibrations generated from the rudder due to a propeller, in the case of a large ship. The spade rudder has a rudder stock for rotating a rudder, and a vertical bearing provided on a side surface of the rudder stock. The spade rudder further includes a stock gudgeon provided on a side surface of the vertical bearing, a horizontal bearing provided under the stock gudgeon, and a horizontal bearing housing provided at the junction of the rudder stock and the horizontal bearing, which are at right angles to each other, and dispersing a bending moment acting on the rudder.Type: ApplicationFiled: December 18, 2006Publication date: September 25, 2008Applicant: SAMSUNG HEAVY IND. CO., LTD.Inventors: Young-hak Seo, Sung-jin Kim, Byeong-Seog Kang