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| Number | Title | Issue Date |
| 7681513 | Tiller operated marine steering system A hydraulic lock of a tiller-based watercraft steering system is responsive to tiller release to lock a watercraft's steered element in the last commanded position upon tiller release. The hydraulic lock can be controlled through an actuator assembly that is provide... | 03/23/2010 |
| 7497183 | Power assist steering apparatus and method responsive to volume flow of fluid An apparatus and method for providing power assisted steering for a marine craft having a manually operable steering pump and a hydraulic steering actuator. A powered hydraulic pump is hydraulically connected between the manually operable pump and the actuator. Hydr... | 03/03/2009 |
| 7364483 | Marine reversing gear assembly The present invention provides a marine reversing gear assembly, wherein a manual directional control valve 7a and an electromagnetic directional control valve 7b for a forward/reverse directional control valve 7 for hydraulic oil ... | 04/29/2008 |
| 7354321 | Outboard motor control system In an outboard motor control system, an electronic control unit executes ordinary navigation in which the operation of at least one among a steering motor, throttle motor and shift motor is controlled in accordance with an operator command inputted from the steering... | 04/08/2008 |
| 7347753 | Hydraulic actuation system for a marine propulsion device A hydraulic system for a sterndrive marine propulsion device directs the flow of hydraulic fluid through the body and peripheral components of a gimbal ring in order to reduce the number and length of flexible hydraulic conduits necessary to conduct pressurized hydr... | 03/25/2008 |
| 7331419 | Dual-circuit steer-by-wire steering system comprising a common cradle The invention relates to a steer-by-wire steering system comprising a hydraulic control unit that acts on the steerable wheels (1, 20), the control unit having at least one cradle (4, 23), which is displaceably mounted on at least one guide rod (5, ... | 02/19/2008 |
| 7325507 | Tiller operated marine steering system A tiller-based watercraft steering system is responsive to tiller release to lock a watercraft's steered element in the last commanded position upon tiller release. The system is locked by closing a valve assembly to prevent flow to opposed chamber of a hydraulic lo... | 02/05/2008 |
| 7320629 | Steering device for small watercraft In a steering device for a small watercraft that has at least two outboard motors which propulsive directions and propulsive forces are individually controllable. The steering device can have a steering wheel that can be inclined relative to an axis of a steering sh... | 01/22/2008 |
| 7318386 | Power assist steering apparatus and method responsive to volume flow of fluid An apparatus and method for providing power assisted steering for a marine craft having a manually operable steering pump and a hydraulic steering actuator. A powered hydraulic pump is hydraulically connected between the manually operable pump and the actuator. Hydr... | 01/15/2008 |
| 7305928 | Method for positioning a marine vessel A vessel positioning system maneuvers a marine vessel in such a way that the vessel maintains its global position and heading in accordance with a desired position and heading selected by the operator of the marine vessel. When used in conjunction with a joystick, t... | 12/11/2007 |
| 7267588 | Selectively lockable marine propulsion devices A steering system for a marine vessel is provided with a connecting link attached to first and second marine propulsion devices. The connecting link is selectively disposable in first and second states of operation which either require synchronous rotation of the fi... | 09/11/2007 |
| 7267068 | Method for maneuvering a marine vessel in response to a manually operable control device A marine vessel is maneuvered by independently rotating first and second marine propulsion devices about their respective steering axes in response to commands received from a manually operable control device, such as a joystick. The marine propulsion devices are al... | 09/11/2007 |
| 7255616 | Steering system for a marine propulsion device A steering system for a marine propulsion device eliminates the need for two support pins and provides a hydraulic cylinder with a protuberance and an opening which cooperate with each other to allow a hydraulic cylinder's system to be supported by a single pin for ... | 08/14/2007 |
| 7226324 | Waterjet with internal drive motor A marine waterjet propulsion system having an impeller with an impeller hub, a diffusor with a diffusor hub, and a motor driving the impeller, the motor being placed inside at least one of said impeller and diffusor hubs. In one preferred embodiment of the propulsio... | 06/05/2007 |
| 7159525 | Hydraulic steering arrangement The invention concerns a hydraulic steering arrangement with a steering motor, a supply path between a pressure source and the steering motor, in which supply path a throttling device and a measuring motor are located, a return path between the steering motor and a ... | 01/09/2007 |
| 7156034 | Steering system for boat A steering system for a boat can include a main switch for turning power on and off, an emergency stop switch for stopping an engine, a steering wheel for operation by an operator, a steering wheel displacement sensor for detecting the operator's displacement of the... | 01/02/2007 |
| 7156708 | Marine steering assembly with integrated pivot pin There is provided a hydraulic steering assembly for applying a force to a tiller of a marine, outboard propulsion unit. The steering assembly comprises a hydraulic steering actuator including a cylinder and an elongated piston rods. A pivot member is pivotally mount... | 01/02/2007 |
| 7150664 | Steering actuator for an outboard motor A steering actuator system for an outboard motor connects an actuator member to guide rails which are, in turn, attached to a motive member such as a hydraulic cylinder. The hydraulic cylinder moves along a first axis with the guide rail extending in a direction per... | 12/19/2006 |
| 7147525 | Hydraulic steering apparatus for an outboard engine A hydraulic steering apparatus 1 has a substantially bow-shaped frame 2, which includes a pair of end portions 2a bent forward. A piston rod 3 is supported by and between the end portions 2a. A hydraulic cylinder 5... | 12/12/2006 |
| 7131386 | Marine propulsion system with pressure compensated hydraulic supply capability A hydraulic system for a marine vessel incorporates a single hydraulic pump that can be driven by either first or second motive devices, such as an internal combustion engine or an electric motor. Depending on the circumstances, the pressure required by the hydrauli... | 11/07/2006 |
| 7112109 | Propulsion system for ships, in particular for cruise vessels For avoiding a high permanent load of the main and control drives rotatable around the vertical axis for ships for the straight forward sailing by a small and compact course keeping rudder system provided for this purpose, for a propulsion system (10) for shi... | 09/26/2006 |
| 7104857 | Method for controlling a hydraulically assisted steering system of a marine vessel A hydraulically assisted steering system provides a controller which activates a hydraulic pump when a manual throttle selector handle is in either forward or reverse gear selector positions, but deactivates the pump when the handle is in a neutral gear selector pos... | 09/12/2006 |
| 6942531 | Joy stick control system for a modified steering system for small boat outboard motors A joystick controller for modified steering system for boats with outboard motors. The system uses a directional nozzle for the jet output that is attached to a control cable system. This cable turns the directional nozzle, which causes the trust of the jet output t... | 09/13/2005 |
| 6910927 | Small watercraft and outboard motor A small watercraft and outboard motor are configured so that operator-activated command signals are communicated from a control unit in the hull of the watercraft via a local area network to engine component actuators in the outboard motor. The local area network en... | 06/28/2005 |
| 6909946 | System and method for wirelessly linking electronic marine components A system and method for wirelessly linking electronic marine components (14) to associated displays (16) to reduce or eliminate the need for application-specific wiring between the components (14) and the displays (16). The system include... | 06/21/2005 |
| 6821168 | Power steering system for a marine vessel An outboard motor is provided with an internally contained cylinder and moveable piston. The piston is caused to move by changes in differential pressure between first and second cavities within the cylinder. By adding a hydraulic pump and a steering valve, the hydr... | 11/23/2004 |
| 6820567 | Steering device A helm pump (10) rotated either in forward or reverse direction by operating a steering wheel (13) and discharges a liquid of a quantity proportional to the rotating angle, and a double action cylinder moves a rudder (27) and is provided on rudd... | 11/23/2004 |
| 6796856 | Steering system A steering system for amphibious vehicle includes a control connected to road steering means. Ram is conventionally used to assist road steering, but by disconnecting command valves, it becomes a hydraulic master cylinder, driving slave cylinder; and thus marine ste... | 09/28/2004 |
| 6790110 | Marine power steering system An improved and simplified marine power steering device that provides assist by selectively operating an electric motor driven hydraulic motor to provide the assist. This eliminates pumps that are constantly driven by the watercraft engine. Also the entire assist un... | 09/14/2004 |
| 6712654 | Turning of a propulsion unit The present application is a method and apparatus for moving and steering a vessel traveling in water. The arrangement for moving and steering a vessel includes a propulsion unit having a chamber positioned outside the vessel equipment for rotating a propeller arran... | 03/30/2004 |
| 6651574 | Spool valve A valve includes a housing with an elongated bore having a longitudinal axis and a spool reciprocatingly mounted within the bore for relative movement along the bore parallel to the axis. The housing has a housing passageway and the spool has a spool pass... | 11/25/2003 |
| 6604480 | Fast current rescue boat A remotely controlled rescue craft for use in fast moving water to rescue victims. A line is strung and secured across the moving water and the craft is tethered to the line. The craft has a water passage port that runs through the length of the craft. Wi... | 08/12/2003 |
| 6598553 | Power assist marine steering system A power steering assist system for a watercraft includes a hydraulically actuated steering cylinder assembly and a helm. The helm has a high pressure port being coupled to a fluid pressure source, a return port coupled to a reservoir, and a metering port ... | 07/29/2003 |
| 6564739 | Marine steering system having dual hydraulic and electronic output A marine steering system operable in either power steering or manual hydraulic modes. The system employs a modified helm pump having a single rotatable input shaft connectable to a steering wheel and dual hydraulic and electronic output. An encoder, such ... | 05/20/2003 |
| 6524147 | Power assist marine steering system A power steering system for a watercraft comprises a hydraulically actuated, unbalanced steering cylinder assembly, a pressure source, and helm that is spaced from the steering cylinder assembly. The helm includes a helm cylinder having a slave chamber fl... | 02/25/2003 |
| 6500037 | Servo steering mechanism for boats for example Servo-assisted steering arrangement for an element pivotable about a steering axis, for example a propeller drive means suspended on a boat transom, said drive means driving a pair of hydraulic steering cylinders (20a, 20b) which connect the drive means t... | 12/31/2002 |
| 6471556 | Tilting mechanism for outboard motor A mechanism for tilting an outboard motor. The mechanism has an outboard motor which is attached to a hull so as to be tilted up and down, a cylinder for driving the outboard motor to change a posture of the outboard motor, and a linkage to connect the ou... | 10/29/2002 |
| 6454620 | Integrated external hydraulic trimming and steering system for an extended sterndrive transom assembly A marine propulsion system is provided with a drive unit that is attachable to a transom of a marine vessel and provided with steering cylinder assemblies and trimming cylinder assemblies which are connected to a common location on a structural member, su... | 09/24/2002 |
| 6416370 | Watercraft hydraulic apparatus A common fluid pressure supply apparatus (40) for a watercraft (10). A fluid interconnection apparatus interconnects the hydraulic fluid circuits operating the hydraulic transmission (18), power steering (30), and tilt-trim function (34) for an inboard/ou... | 07/09/2002 |
| 6276977 | Integrated hydraulic steering actuator A hydraulic actuator is provided for an outboard motor system in which the cylinder and piston of the actuator are disposed within a cylindrical cavity inside a cylindrical portion of a swivel bracket. The piston within the cylinder of the actuator is att... | 08/21/2001 |
