Jet Patents (Class 114/151)
  • Patent number: 10331137
    Abstract: A boat comprises a hull, a primary steering mechanism carried by the hull, a control station located on the hull, a helm located at the control station, and a thruster system carried by the hull. The primary steering mechanism, such as a rudder, is operable via the helm with a helm input being derived from operation of the primary steering mechanism thereby. The thruster system includes at least one thruster mounted to the hull, distinct from the primary steering mechanism, and a controller. The controller receives the helm input and is configured with program instructions to operate the at least one thruster responsive to the helm input to supplement a corresponding movement of the hull. The controller can also automatically operate the thruster responsive to direction, speed and ballast inputs.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: June 25, 2019
    Assignee: Correct Craft IP Holdings, LLC
    Inventors: Eric J. Miller, William N. Snook, Adam C. Greer, Andrew O. Cochrum
  • Patent number: 10322784
    Abstract: Combination of marine vessel and outboard motor, wherein at least one outboard motor is attached in a predetermined position to the transom of the marine vessel, the motor being mounted so as to translate according to a path with at least one motion component having an orientation parallel to the direction of the transverse axis of the hull and/or parallel to the transom of said hull and alternatively towards one or the other side of the hull.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: June 18, 2019
    Inventors: Marcella Gai, Enrico Pagani, Marco Vaccari, Matteo Del Turco
  • Patent number: 10167069
    Abstract: In at least one embodiment the present invention provides an improved mounting and actuation device having a mounting body defining a stowage cavity and an actuation arm operable for movement from a first stowed position to a second actuated position, the actuation arm operably connected to the mounting body at a first proximal end and having a second distal end having a mounting surface adapted to receive an accessory wherein the actuation arm is received in the stowage cavity in the first stowed position.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: January 1, 2019
    Assignee: SIDESHIFT INC.
    Inventors: Mark Houle, Robert Griffin, Norman Boulard
  • Patent number: 10167057
    Abstract: A jet boat basically includes a hull, a first jet propulsion unit, a second jet propulsion unit, and a steering unit. The first jet propulsion unit is provided to the hull. The first jet propulsion unit has a first steering deflector with a first propulsion axis. The first steering deflector is movable with respect to the hull. The second jet propulsion unit is provided to the hull. The second jet propulsion unit has a second steering deflector with a second propulsion axis. The second steering deflector is movable with respect to the hull. The steering unit is operatively coupled to the first and second jet propulsion units. The first and second steering deflectors are oriented such that the first and second propulsion axes are non-parallel to a longitudinal center axis of the hull while the steering unit is in a straight steering position.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: January 1, 2019
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Kohei Terada, Michael Ortiz
  • Patent number: 10106233
    Abstract: Autonomous underwater vehicles are described that are stackable with other like autonomous underwater vehicles on a suitable launch platform, such as within a vertical missile launch tube of a submarine, waiting to be deployed into the water. The underwater vehicles can be deployed or launched individually, in groups, or all together into the water. While stacked together, the stacked autonomous underwater vehicles can connect to one another or to external structure of the launch platform. In addition, the underwater vehicles can be positively buoyant or can be made to have controllable buoyancy to allow the underwater vehicles to float up and out of the launch platform during deployment without an external deployment force.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: October 23, 2018
    Assignee: Lockheed Martin Corporation
    Inventors: Harry J. Lichter, Wayne A. Baker, Russell M. Sylvia
  • Patent number: 10071793
    Abstract: A jet propulsion boat includes a propulsion device configured to generate a jet of water, a first discharge portion provided in a rear portion of a boat body, including a first discharge port from which the jet of water is discharged, a second discharge portion including a second discharge port from which the jet of water is discharged, configured to be rotatable so as to change the discharge direction of the second discharge port, and a jet path configured to connect the propulsion device to the first discharge portion and the second discharge portion.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: September 11, 2018
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Satoshi Koyano, Shu Akuzawa
  • Patent number: 10005532
    Abstract: A thruster assembly is provided for a marine vessel, the assembly having a propeller unit (14), a motor (10) and a drive shaft (12) linking the motor (10) with the propeller unit (14) to drive the propeller unit (14). The drive shaft (12) is foldable and defines a drive path between the motor (10) and the propeller unit (14). A housing (2) locates the propeller unit (14) in a storage configuration. The motor (10) is fixed with respect to the housing (2), the housing (2) being adapted to be fixed with respect to an opening in a hull (8) of the marine vessel. An actuator (22) is operable to move the propeller unit (14) from the storage configuration to a deployment configuration in a direction from inboard to outboard, the propeller unit (14) being extended from the hull (8) for use in the deployment configuration. The propeller unit (14) is supported by a support assembly (36) which is pivotable relative to the housing (2) about a pivot axis (A).
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: June 26, 2018
    Assignee: LEWMAR LIMITED
    Inventors: Nigel Christopher Smith, Philip David Roberts, Andrew Michael Matthews
  • Patent number: 9909571
    Abstract: An offshore structure for use with an OTEC system includes a submerged spar having a lower portion having a cold water intake. The cold water intake includes a domed terminus in fluid communication with a cold water pipe. A dry machinery space adjacent the cold water intake includes one or more cold water supply pumps and one or more cold water pipe lifting and retention winches having a lifting cable connected to the cold water pipe.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: March 6, 2018
    Assignee: The Abell Foundation, Inc.
    Inventors: Jonathan M. Ross, Daniel Latimer Wilkins, Manish Gupta, Gregory M. Morrow, Laurence Jay Shapiro, Barry R. Cole, Andrew Rekret
  • Patent number: 9845136
    Abstract: A boat includes a hull, a deck, an engine disposed between the hull and the deck, and a jet propulsion unit including a jet nozzle configured to jet water therefrom. The jet nozzle includes a hole to which a water passage is connected and is configured to supply pressurized water from the jet nozzle to a water intake opening located in an interior of the hull. The water intake opening is connected to an interior water passage disposed in the interior of the hull and between the hull and the deck. The interior water passage is connected to a deck hose used to wash the boat.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: December 19, 2017
    Assignee: YAMAHA MOTOR CORPORATION, USA
    Inventor: Scott Watkins
  • Patent number: 9821894
    Abstract: An autonomous underwater vehicle (AUV) for recording seismic signals during a marine seismic survey. The AUV includes a body having a flush shape; an intake water element located on the body and configured to take in water; at least one propulsion nozzle located on the body and configured to eject the water from the intake water element for actuating the AUV; at least one guidance nozzle located on the body and configured to eject water to change a traveling direction of the AUV; and a seismic payload located on the body of the AUV and configured to record seismic signals.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: November 21, 2017
    Assignee: Seabed Geosolutions AS
    Inventors: Thierry Brizard, Alice Herve, Jonathan Grimsdale, Robert Dowle
  • Patent number: 9765753
    Abstract: A turbine arrangement for a bi-directional reversing flow is provided. The turbine arrangement may include a rotor rotatably mounted to rotate about an axis of the turbine arrangement, and the rotor may have a plurality of rotor blades disposed circumferentially thereabout. A first set of guide vanes may be circumferentially disposed about the axis for directing the bi-directional reversing flow to and from the rotor blades via a first flow passaged defined by a first duct. A second set of guide vanes may be axially spaced from the first set of guide vanes and circumferentially disposed about the axis for directing the bi-directional reversing flow to and from the rotor blades via a second flow passage defined by a second duct. The guide vanes may be disposed at a greater radius than the rotor blades, such that the guide vanes are radially offset from the rotor blades.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: September 19, 2017
    Assignee: Dresser-Rand Company
    Inventors: Christopher Freeman, Steven James Herring, Kevin Banks
  • Patent number: 9714075
    Abstract: A jet boat includes a hull, a jet propulsion nozzle mounted to a rear of the hull, and an articulating keel attached at the rear of the hull. The articulating keel is connected to the jet propulsion nozzle via a connecting portion such that when the jet propulsion nozzle is turned, at least a portion of the articulating keel is turned with the jet propulsion nozzle. The jet propulsion nozzle turns about a first pivot axis extending vertically or substantially vertically, and the articulating keel turns about a second pivot axis extending vertically or substantially vertically. The first pivot axis of the jet propulsion nozzle is coaxial with the second pivot axis of the articulating keel.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: July 25, 2017
    Assignees: YAMAHA MOTOR CORPORATION, U.S.A., YAMAHA JET BOAT MANUFACTURING U.S.A., INC.
    Inventors: Scott Watkins, Ed Miller
  • Patent number: 9708032
    Abstract: A method for disassembling and/or assembling an underwater section of a retractable thruster unit of a swimming vessel. A supporting cradle is detachably fixed to the underwater section from below, and the thruster unit is lifted so that the underwater section is at least partly brought inside the well formed in the bottom of the vessel. Lifting wires of an auxiliary lift are connected to the supporting cradle for supporting the thruster unit. Water is drained from the well, and the lower gear is disengaged and the intermediate section and the lower gear are sealed. After that water is let to ingress into the well and the underwater section is lowered down by the auxiliary lift to dock bottom or sea bed, from where the underwater section is picked up with a crane.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: July 18, 2017
    Assignee: ROLLS-ROYCE OY AB
    Inventors: Esa Ruostemaa, Mikko Karppinen, Mikko Knuuti
  • Patent number: 9623942
    Abstract: A propulsion assembly of a ship or floating platform includes a housing within a hull or platform. The housing is watertight except for an opening external to the hull. A stationary motor is arranged in the hull external to the housing. A thruster is external to the hull to generate thrust on the ship or floating platform. A telescopic driving shaft passes sealingly through a housing wall to connect the motor and the thruster and to transmit movement from the motor to the thruster. The thruster retracts within the housing through the opening. A separate submersible movable hatch is disconnectable from the thruster and the housing and passes externally to the hull, and seals the opening to form a watertight closed chamber. A fluid evacuation device evacuates fluid within the closed chamber so the thruster, when retracted in the housing and closed by the hatch, forms the closed chamber.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: April 18, 2017
    Assignee: FINCANTIERI S.p.A.
    Inventors: Giacomo Schiaffino, Alessandro Calcagno, Stefano Bucci, Giovanni Magnano
  • Patent number: 9625597
    Abstract: An autonomous underwater vehicle (AUV) records seismic signals during a marine seismic survey. The AUV includes a communication device configured to acoustically receive location information from plural transducers of a vessel, wherein each transducer of the vessel transmits its own geographical location; a navigation system configured to receive the location information from the communication device and to calculate current and target positions of the AUV; a propulsion system configured to drive the AUV from the current position to the target position; and a seismic sensor for recording seismic data after reaching a final target position.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: April 18, 2017
    Assignee: CGG SERVICES SAS
    Inventor: Jonathan Grimsdale
  • Patent number: 9527565
    Abstract: A vessel with auxiliary steering includes a vessel hull with a bow/stern centerline and a port and starboard side. The vessel has (i) a main propulsion unit including at least one propeller and at least one main rudder, and (ii) a secondary propulsion unit including at least one directional water jet thruster on each of the port and starboard side of the vessel hull. The water jet thrusters are configured to direct water outwardly and perpendicularly to the centerline of the hull, and a control system coordinates the direction of the main rudder and the flow direction of at least one water jet thruster.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: December 27, 2016
    Inventor: Luke Guidry
  • Patent number: 9376186
    Abstract: Marine tunnel thruster includes a duct, within which at least a propeller is fitted that is operatively connected to a rotational drive system. The duct is composed of three sections, which include a first central section and two end sections. The first central section has a specific length and a specific diameter, while the two end sections have a specific length and a specific diameter greater than the diameter of the central section.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: June 28, 2016
    Inventors: Enrico Bruno Brizzolara, Stefano Brizzolara
  • Patent number: 9334029
    Abstract: A position of a target ship alongside is displayed in animation on a display unit 17 by the computer 11 based on any one of the positional information on the target ship alongside, which is transmitted from an automatic identification system (AIS) of a target ship alongside and is obtained by an AIS communication unit 13, positional information on the target ship alongside, which is obtained by the GNSS communication unit 14 from a global navigation satellite system, and positional information on the target ship alongside, which is manually inputted via an operation unit 18. Therefore, the latest position of the target ship alongside can be always displayed in animation.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: May 10, 2016
    Assignee: THE YOKOHAMA RUBBER CO., LTD.
    Inventors: Masahiko Miyamoto, Shu Yamada, Shigeki Sakakibara, Kazunori Ono, Koji Nakatani, Michito Kaneko
  • Patent number: 9193427
    Abstract: A floating vessel having a hull, at least one thruster tube, at least one water moving device and at least one power supply in the thruster tube. At least one appendage partially surrounds the thruster tube and encircles the thruster tube from 30 percent to 40. A plurality of supports secures the at least one appendage to the hull. At least one fairing plate is installed between a tangent of the appendage and the hull for following a circumference of the thruster tube and encircling the thruster tube from 30 percent to 40 percent, wherein the fairing plate is configured to transition water flow from the hull over the appendage and into the thruster tube to reduce water turbulent flow across an opening of the thruster tube.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: November 24, 2015
    Assignee: GULF COAST SHIPYARD GROUP, INC.
    Inventor: William Philip Nuss
  • Patent number: 9096300
    Abstract: One embodiment of the invention comprises a method for controlling a marine vessel having a first steerable propulsor, a corresponding first reversing device, a second steerable propulsor and a corresponding second reversing device. The method comprises receiving a first vessel control signal corresponding to a rotational movement and no translational movement command, generating at least a first actuator control signal and a second actuator control signal in response to the first vessel control signal, coupling the first actuator control signal to and controlling the first steerable propulsor and the second steerable propulsor, and coupling the second actuator control signal to and controlling the first reversing device and to the second reversing device. The method creates rotational forces on the marine vessel with substantially no translational forces on the marine vessel.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: August 4, 2015
    Inventor: Robert A. Morvillo
  • Patent number: 8939104
    Abstract: A lateral thruster for a vessel with a housing (1), at least one electric motor (2, 2?) fitted in the housing (1) and at least one transverse propeller (13) acting transversely with respect to a longitudinal axis (3) of the vessel (5) is additionally provided with at least one longitudinal propeller (21) acting in a direction of the longitudinal axis (3) of the vessel (5).
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: January 27, 2015
    Assignee: Sleipner—Marinno GmbH
    Inventor: Hubert Holesz
  • Publication number: 20150020724
    Abstract: A system for controlling a marine vessel having first and second steering nozzles and corresponding first and second reversing buckets, comprises a processor configured to receive a first vessel control signal including at least a component corresponding to a translational thrust command in a port direction, and that is configured to provide a set of actuator control signals coupled to and control the first and second reversing buckets. The processor is configured to provide the set of actuator control signals so as to maintain the first reversing bucket substantially in a first discrete position and the second reversing bucket substantially in a second discrete position as long as the first vessel control signal includes a component corresponding to a translational thrust command in the port direction.
    Type: Application
    Filed: February 24, 2014
    Publication date: January 22, 2015
    Inventor: Robert A. Morvillo
  • Patent number: 8849484
    Abstract: A system for controlling a marine vessel having first and second waterjets, corresponding first and second steering nozzles and corresponding first and second reversing buckets. The system comprises a speed control device for providing a first vessel control signal that corresponds to a speed to be provided to the marine vessel, a processor configured to receive the first vessel control signal and that is configured to provide at least one first actuator control signal coupled to the first and second waterjets, and at least one second actuator control signal coupled to the first and second steering nozzles and the first and to second reversing buckets. The system any of improves upon turns provided by conventional waterjet propulsion systems, improves upon slowing down or stopping marine vessels as is done by conventional waterjet propulsion systems, and improves upon the controllability of the waterjet propulsed marine vessel at low vessel speeds.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: September 30, 2014
    Inventor: Robert A. Morvillo
  • Patent number: 8814617
    Abstract: In a thruster for a vessel including a hull, the thruster comprises at least one tunnel element and at least one thruster unit. The tunnel element includes at least a part of a through tunnel in the hull when arranged in the hull. The at least one thruster unit and the at least one tunnel element include cooperating fastening devices for detachably fixing the at least one thruster unit in the at least one tunnel element such that the at least one thruster unit is configured to be passed through the tunnel and mounted to the at least one tunnel element, or demounted from the at least one tunnel element and passed out of the tunnel. A method for mounting and demounting a thruster in a tunnel element includes a tunnel element arranged in the vessel of a hull.
    Type: Grant
    Filed: November 25, 2010
    Date of Patent: August 26, 2014
    Assignee: Rolls-Royce Marine AS
    Inventors: Ole Arnt Marholm, Gunnar Johnsen, Dag Brandal
  • Publication number: 20140202368
    Abstract: One embodiment of the invention comprises a method for controlling a marine vessel having a first steerable propulsor, a corresponding first reversing device, a second steerable propulsor and a corresponding second reversing device. The method comprises receiving a first vessel control signal corresponding to a rotational movement and no translational movement command, generating at least a first actuator control signal and a second actuator control signal in response to the first vessel control signal, coupling the first actuator control signal to and controlling the first steerable propulsor and the second steerable propulsor, and coupling the second actuator control signal to and controlling the first reversing device and to the second reversing device. The method creates rotational forces on the marine vessel with substantially no translational forces on the marine vessel.
    Type: Application
    Filed: November 20, 2013
    Publication date: July 24, 2014
    Inventor: Robert A. Morvillo
  • Publication number: 20140165896
    Abstract: An auxiliary appendage attachable to the steerable nozzle of an existing water craft. A first and second rudder blade attach to steerable nozzle. The first rudder blade includes a torsion spring providing a downward torsion force. A detent attached to steerable nozzle prevents rudder blades from hyper-extending in the direction of the downward torsion force. Rudder blades are connected by a deflection bar. Deflection bar is angled towards rudder blades. Rudder blades pivot between a downward position to an upward position based on the forces created thereon from both the torsion spring and the movement of the water over the appendage.
    Type: Application
    Filed: December 18, 2012
    Publication date: June 19, 2014
    Inventors: Thomas W. Watts, Miller W. Owen, III, Shane Huseby, Steven Edward Caskey
  • Patent number: 8701581
    Abstract: A system and method protect a thruster assembly disposed with a pontoon of a semi-submersible drilling vessel during dry tow transport. A cover may be positioned over the thruster assembly and secured with the pontoon. A thruster cover support structure may be disposed with the pontoon. The thruster cover support structure may be a frame positioned around the pontoon for removable attachment with the thruster cover. The thruster cover support structure may be a bracket, ring or flange fixedly attached with the pontoon. The thruster cover may be removably disposed with the bracket, ring or flange, such as by bolting or welding. A spacer barge may be positioned below the pontoon between thruster assemblies for lifting the semi-submersible drilling vessel before placement of the spacer barge and semi-submersible vessel on the dry tow transporting vessel. The thruster assemblies may be elevated and in some embodiments positioned directly over the dry tow transporting vessel.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: April 22, 2014
    Assignee: Delphi Acquisition Holding I B.V.
    Inventors: Steven Byle, James Jun Lee, Anko Gils
  • Patent number: 8696393
    Abstract: The thruster pod that is made of a pump plate; a valve plate affixed to the pump plate, and a diaphragm mounted between the pump plate and the valve plate. The pump plate has juxtaposed pressure cavity and outlet cavity, and a partition separating the pressure cavity from the outlet cavity. The pressure cavity communicates with a source of water under pressure and the outlet cavity communicates with an outlet port. The valve plate has a control chamber facing the juxtaposed pressure and outlet cavities. The diaphragm is mounted between the juxtaposed pressure and outlet cavities and the control chamber for movement between a first position and a second position upon a change in pressure in the control chamber. A control valve is mounted in the valve plate for selectively changing a pressure in the control chamber and operating a diaphragm valve.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: April 15, 2014
    Assignee: College of the North Atlantic
    Inventor: Randal Joseph Harold Power
  • Publication number: 20140053764
    Abstract: A steering device for a surfboard includes a steering unit, a driving unit and a transmitting unit. The steering unit is operable for controlling a movement of the surfboard. The driving unit includes a base seat secured to a board body of the surfboard, a rotatable linking member disposed in the base seat, and a drive arm mounted with a handle. The drive arm is rotatable and substantially untwistable, is connected to the linking member, and extends outwardly of the base seat. Rotation of the drive arm drives the linking member to rotate, thereby driving operation of the steering unit via the transmitting unit.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 27, 2014
    Applicants: Chia-Wen Ruan, Joy Ride Technology Co., Ltd.
    Inventors: Chia-Wen Ruan, Ming-Chen Liao
  • Patent number: 8584609
    Abstract: A tunnel thruster system for a vessel. The tunnel thruster system includes a thruster propulsion mechanism including a drive unit driving a transmission and propeller assembly located within a thruster tunnel. The thruster tunnel comprising a propeller section, first and second tapered tunnel sections interconnected with one another by the propeller section, the propeller section and the first and the second tapered tunnel sections oriented substantially transversely to a keel of the vessel and accommodating the transmission and propeller assembly. Each tapered tunnel section extends from the propeller section to a tunnel opening through a hull of the vessel. Diameters of the first and the second tapered tunnel sections corresponding to a diameter of the propeller section at the propeller section and taper outward toward a larger diameter at each of the corresponding tunnel openings through the hull of the vessel.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: November 19, 2013
    Assignee: ZF Friedrichshafen AG
    Inventors: Paolo Stasolla, Eric Davis, Rick Davis
  • Publication number: 20130228112
    Abstract: A system for controlling a marine vessel having first and second steering nozzles and corresponding first and second reversing buckets, comprises a processor configured to receive a first vessel control signal including at least a component corresponding to a translational thrust command in a port direction, and that is configured to provide a set of actuator control signals coupled to and control the first and second reversing buckets. The processor is configured to provide the set of actuator control signals so as to maintain the first reversing bucket substantially in a first discrete position and the second reversing bucket substantially in a second discrete position as long as the first vessel control signal includes a component corresponding to a translational thrust command in the port direction.
    Type: Application
    Filed: April 5, 2013
    Publication date: September 5, 2013
    Inventor: Robert A. Morvillo
  • Publication number: 20130199431
    Abstract: A boat configured for rotating in response to passenger inputs such as rotation of a wheel or pumping a hand pump. The boat includes a hull with an upper portion for receiving at least one passenger and a lower portion comprising a bottom contact surface. Further, the boat includes a rider interface, provided on the upper portion of the hull, that is configured for receiving physical input from the passenger. The boat also includes a torque producing assembly with a boat-to-water interface provided on the lower portion below a waterline region and above bottom contact surface. The boat-to-water interface applies a force to water adjacent to the lower portion of the hull in response to the received physical input, whereby the boat rotates due to a resistive force applied by the water in response to the applied force.
    Type: Application
    Filed: February 6, 2012
    Publication date: August 8, 2013
    Applicant: DISNEY ENTERPRISES, INC.
    Inventors: Edward A. Nemeth, David W. Crawford, Matthew P. Meyer
  • Patent number: 8490558
    Abstract: A watercraft has first and second jet propulsion units. The first jet propulsion unit includes a first inlet, a first outlet, a second outlet, and a first valve. The second jet propulsion unit includes a second inlet, a third outlet, a fourth outlet, and a second valve. The watercraft also includes first and second discharge ports disposed on opposite sides of a longitudinal centerline, a first pipe fluidly communicating the first discharge port with the second outlet, a second pipe fluidly communicating the second discharge port with the second outlet, third and a fourth discharge ports disposed on opposite sides of the longitudinal centerline, a third pipe fluidly communicating the third discharge port with the fourth outlet, and a fourth pipe fluidly communicating the fourth discharge port with the fourth outlet.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: July 23, 2013
    Assignee: Consortium de Recherche BRP-Universiéde Sherbrooke S.E.N.C.
    Inventors: David Foley, Simon Richard, Real Dupont, Roger Rioux, Gilbert Lefrancois
  • Patent number: 8479673
    Abstract: The present embodiments relate to a vessel for oceanographic research and the development and maintenance of renewable energy resources. The vessel can have a hull, a keel with a keel cooler, skegs, watertight interior bulkheads, a main deck, topsides, insulation, sonar tubes, a sonar transducer, an engine room, a propulsion system, propellers and rudders that are operable independently and in tandem, engines with vibration isolation mounts, fuel tanks, a hydraulic bow thruster, generators, a pilothouse, a navigation station, a steering device, a dog house, living quarters, a communication system, lighting, escape hatches, and a knuckle boom crane. The hull can be adapted to sit level on a mudflat during a low tide, enabling crew to initiate emergency repairs to the vessel without having to return to port. The vessel can also have a dynamic positioning processor enabling for continuous vessel positioning.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: July 9, 2013
    Assignee: Ledder High Risk Capital Ventures, LP
    Inventors: Mark S. Ledder, Roger Fyffe
  • Patent number: 8448591
    Abstract: A method and an assembly/disassembly arrangement for a tunnel thruster unit includes a thruster unit and a tunnel, a first attachment arrangement for fitting of said thruster unit to the tunnel and at least one further attachment arrangement for safe fitting of the thruster unit in the tunnel. A further attachment arrangement is in the form of a first interface device fixedly attached to and protruding from attached to the inside of the tunnel wall and a second interface device fixedly attached to the thruster unit.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: May 28, 2013
    Assignee: Rolls-Royce Aktiebolag
    Inventor: Lars-Goran Andersson
  • Patent number: 8392040
    Abstract: A system for controlling a marine vessel having first and second waterjets, corresponding first and second steering nozzles and corresponding first and second reversing buckets. The system comprises a speed control device for providing a first vessel control signal that corresponds to a speed to be provided to the marine vessel, a processor configured to receive the first vessel control signal and that is configured to provide at least one first actuator control signal coupled to the first and second waterjets, and at least one second actuator control signal coupled to the first and second steering nozzles and the first and second reversing buckets. The system any of improves upon turns provided by conventional waterjet propulsion systems, improves upon slowing down or stopping marine vessels as is done by conventional waterjet propulsion systems, and improves upon the controllability of the waterjet propulsed marine vessel at low vessel speeds.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: March 5, 2013
    Inventor: Robert A. Morvillo
  • Patent number: 8382538
    Abstract: A hydraulic thruster for vessel. The hydraulic thruster is intended for incorporation into a modular vessel thruster system, and is easily installed onto, and removed from, a vessel having such system. A housing is tiltably attached to a bracket, which in turn is removably mounted to a vessel. A cylinder is rigidly attached to the housing, and a tube is extensibly and rotatably disposed within the cylinder. A thrust means is disposed at a lower end of the tube. The instant thruster incorporates positive redundant down-tilt stop means, increased extension/retraction range, reduced shipping size, and means for securely and removably attaching the thruster to a vehicle deck.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: February 26, 2013
    Inventor: John T. Williams
  • Patent number: 8353734
    Abstract: A self-contained hydraulic thruster for vessel. The hydraulic thruster incorporates at least one lower unit housing tiltably attached to a base at a base lower unit cutout laterally offset from a helm platform. Tilt actuator(s) disposed entirely above a base upper surface tilt each lower unit up or down relative to the base. Two positive down-tilt means are disclosed: housing arm lower edge(s) resting on the base upper surface, and also down stop tab(s) extending from a base lower unit cutout wall into the base lower unit cutout against which a forward housing wall edge butts when the housing is tilted fully down. In addition, base bores through the base are disclosed, and pins which slidably fit into respective base bores and extend downwards from the base to serve as positioning stops when installing the hydraulic thruster on a vessel.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: January 15, 2013
    Inventor: John T. Williams
  • Patent number: 8317554
    Abstract: A modular hydraulic thruster system for vessel. At least one thruster is hydraulically connected to a power pack and electrically connected to an instrument panel. The instrument panel has a thrust angle indicator, tube gear clamp status indicator, extension indicator, tilt angle indicator, and tachometer, all pertaining to each thruster. The thruster includes a tube rotating and reciprocating through a housing, which is rotatably attached to a bracket. A swivel union is attached to one end of the tube; a hydraulic motor drives a propeller to an opposite end of the tube. Some instrumentation electrical and hydraulic lines are routed through the swivel union and into the tube; others are further routed out of the tube through a tube aperture and through a flexible spiral conduit to accommodate tube reciprocation within the housing. Means is disclosed to prevent a swivel union stationary section from rotating relative to the housing.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: November 27, 2012
    Inventor: John T. Williams
  • Publication number: 20120272885
    Abstract: A watercraft has first and second jet propulsion units. The first jet propulsion unit includes a first inlet, a first outlet, a second outlet, and a first valve. The second jet propulsion unit includes a second inlet, a third outlet, a fourth outlet, and a second valve. The watercraft also includes first and second discharge ports disposed on opposite sides of a longitudinal centerline, a first pipe fluidly communicating the first discharge port with the second outlet, a second pipe fluidly communicating the second discharge port with the second outlet, third and a fourth discharge ports disposed on opposite sides of the longitudinal centerline, a third pipe fluidly communicating the third discharge port with the fourth outlet, and a fourth pipe fluidly communicating the fourth discharge port with the fourth outlet.
    Type: Application
    Filed: April 29, 2011
    Publication date: November 1, 2012
    Applicant: CONSORTIUM DE RECHERCHE BRP - UNIVERSITE DE SHERBROOKE S.E.N.C.
    Inventors: David FOLEY, Simon RICHARD, Real DUPONT, Roger RIOUX, Gilbert LEFRANCOIS
  • Patent number: 8126602
    Abstract: A system for controlling a marine vessel having first and second waterjets, corresponding first and second steering nozzles and corresponding first and second reversing buckets. The system comprises a speed control device for providing a first vessel control signal that corresponds to a speed to be provided to the marine vessel, a processor configured to receive the first vessel control signal and that is configured to provide at least one first actuator control signal coupled to the first and second waterjets, and at least one second actuator control signal coupled to the first and second steering nozzles and the first and second reversing buckets. The system any of improves upon turns provided by conventional waterjet propulsion systems, improves upon slowing down or stopping marine vessels as is done by conventional waterjet propulsion systems, and improves upon the controllability of the waterjet propulsed marine vessel at low vessel speeds.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: February 28, 2012
    Inventor: Robert A. Morvillo
  • Patent number: 8069802
    Abstract: One embodiment of the invention comprises a method for controlling a marine vessel having a first steerable propulsor, a corresponding first reversing device, a second steerable propulsor and a corresponding second reversing device. The method comprises receiving a first vessel control signal corresponding to a rotational movement and no translational movement command, generating at least a first actuator control signal and a second actuator control signal in response to the first vessel control signal, coupling the first actuator control signal to and controlling the first steerable propulsor and the second steerable propulsor, and coupling the second actuator control signal to and controlling the first reversing device and the second reversing device. The method creates rotational forces on the marine vessel with substantially no translational forces on the marine vessel.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: December 6, 2011
    Inventor: Robert A. Morvillo
  • Patent number: 8066538
    Abstract: A jet boat comprising an engine-balance system, the engine-balance system comprising a first impeller and a second impeller, wherein water can be driven out of the first impeller for forward motion and water can be selectively driven out of the second impeller, regulated by a balance detecting device, wherein water from the second impeller can provide balance to the jet boat.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: November 29, 2011
    Inventor: Krzysztof A. Kostrzewski
  • Patent number: 8007328
    Abstract: A self-contained hydraulic thruster for vessel. A power pack is mounted on a forward end of a base, and a helm platform is mounted on an aft end of the base at a substantial height above the base. A reservoir in communication with the power pack is mounted on the helm platform, thus facilitating hydraulic fluid flow from the reservoir to the power pack, and also rendering the hydraulic system self-priming. At least one lower unit is tiltably mounted to the base aft end, laterally offset from the helm platform. Due to the lateral offset between the lower unit(s) and the helm platform, interference between the lower unit(s) and the helm platform is avoided when the lower unit(s) is retracted and tilted up for transportation, storage, or maintenance.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: August 30, 2011
    Inventor: John T. Williams
  • Publication number: 20110061579
    Abstract: A dynamic or aerodynamic fin comprising at least two parallel arranged fin sections. At least one fin section comprises a rotational axis for installing the fin section by a rotation shaft. An end stop is provided for stopping the rotational movement of the fin section to define an extreme position. In the extreme position the fin sections provide a substantially cambered shape to the fin. The dynamic fin is improved in that it comprises a pair of coupling elements. A first fin section is coupled to a second adjacent fin section by a pair of a first and second coupling elements. The first coupling element is complementary to the second coupling element. The first coupling element is part of, preferably integral, with the first fin section and the second coupling element is part of, preferably integral, with the second fin section.
    Type: Application
    Filed: March 10, 2010
    Publication date: March 17, 2011
    Inventor: Klaas Boudewijn VAN GELDER
  • Patent number: 7883384
    Abstract: A self-contained hydraulic thruster for vessel. The hydraulic thruster incorporates a lower unit housing tiltably attached to a lower unit mounting tube attached to a base, a tube whose upper end is attached through the lower unit housing, and a shaft slidably disposed within the tube. A substantial length of tube extends downwards from the lower unit housing, thus providing support for the shaft. An actuator is disclosed which extends and retracts the shaft relative to the tube. A steering clamp is releasably attached to an end of the shaft which protrudes through the top of the lower unit housing. A steering clamp key traveling in a shaft keyway, or a shaft key in combination with a steering clamp keyway, help maintain constant the angular orientation between the steering clamp and the shaft. A steering gear meshing with a steering assembly, or an actuator driving a tie rod, provide steering.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: February 8, 2011
    Inventor: John T. Williams
  • Patent number: 7789032
    Abstract: A thruster mounted to the transom of a boat and aligned to provide a lateral thrust for maneuvering the boat at low speeds. The thruster comprises a central housing having a propeller therein, and two extension members extending oppositely outwardly from end openings of the housing. The extension members each have a lower perimeter portion located below the water line of the boat and arranged to prevent ambient air from being entrained into the water that goes through the central thruster section.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: September 7, 2010
    Assignee: Cap Sante Marine, Ltc.
    Inventors: Donald Bruce McDugle, Kevin D. Pattison
  • Patent number: 7765946
    Abstract: A system and apparatus for providing integrated boat thrusters which eliminates interfering with the integrity of the hull, and undesirable drilling and cutting of the hull to accommodate separate glass tubes or pipes that are conventionally used to form thruster tunnels. The instant system provides integrally molded thruster tunnel sections within the hull, and unique keystone inserts which are complementary to the molded thruster tunnel sections and complete the water flow chambers through the hull about the propellers. Separate tubes are not utilized. Thruster motors and mounting mechanisms are securely fastened in flat planes enhancing strength, performance and maintenance of the assemblies. In a preferred embodiment, the keystone insert is generally wedge shaped to provide a secure fit and bond within the molded tunnel section having angled walls.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: August 3, 2010
    Assignee: Boston Whaler, Inc.
    Inventors: Ronald M. Berman, Keith P. Ranieri
  • Patent number: 7753745
    Abstract: Status indicators for use with a watercraft propulsion system are described. An example indicator includes a light operatively coupled to a propulsion system of a watercraft, wherein an operation of the light indicates a status of a thruster system of the propulsion system.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: July 13, 2010
    Assignee: Brunswick Corporation
    Inventors: Tyson Schey, Karen Suhre
  • Publication number: 20100036554
    Abstract: A system for controlling a marine vessel having first and second steering nozzles and corresponding first and second reversing buckets, comprises a processor configured to receive a first vessel control signal including at least a component corresponding to a translational thrust command in a port direction, and that is configured to provide a set of actuator control signals coupled to and control the first and second reversing buckets. The processor is configured to provide the set of actuator control signals so as to maintain the first reversing bucket substantially in a first discrete position and the second reversing bucket substantially in a second discrete position as long as the first vessel control signal includes a component corresponding to a translational thrust command in the port direction.
    Type: Application
    Filed: May 29, 2007
    Publication date: February 11, 2010
    Inventor: ROBERT A. MORVILLO