Matches 251 - 300 out of 334 < 1 2 3 4 5 6 7 >
Match Document Document Title
5105755 Pontoon boat gate with safety switch  
A boat including a deck equipped with peripherally upwardly projecting components surrounding a passenger area is provided including passageways from the passenger area between adjacent components...
5094637 Trim detecting device for marine propulsion device  
A trim position sensor and indicator and control unit for a marine outboard drive each of which is provided with its own power supply. The trim position indicator may also control the control...
5078627 Voltage regulator and rectifier having over-temperature protection  
A marine propulsion device includes an engine having an alternator for charging a storage battery. A voltage regulator and rectifier is connected in circuit between the alternator and the storage...
5073133 Fuel supplying system for engine of outboard motor  
An arrangement for insuring that an internal combustion engine of an outboard motor will operate efficiently under all trim adjusted conditions of the outboard motor. The trim angle is sensed and...
5069154 Marine safety system for positive-pressure engines  
A safety system associated with an engine of a marine vessel wherein the safety system includes a blower, a control unit, and a plurality of sensors. An intake pressure detection device is coupled...
5052955 Leisure boat  
A leisure boat is provided in a round form having a diameter of about 1 to 2 meters, and includes propeller means provided at a position closer to its bow from the center of the boat and the bow...
5045001 Auxiliary automatic cooling water supply for marine engines  
A marine propulsion device comprising an internal combustion engine, primary structure for supplying cooling water to the engine, and ancillary structure for supplying cooling water to the engine...
5041029 Automatic trolling arrangement  
Automated constant depth steering and automated yaw correcting techniques for fishing boats or similar craft usable in concert or separately are disclosed. The constant depth steering arrangement...
5037338 Marine propulsion device tilt limit switch  
A marine propulsion device comprising a transom bracket adapted to be affixedly mounted on the transom of a boat, a propulsion unit mounted on the transom bracket for pivotal movement relative...
5022370 Ignition system for marine propulsion device  
A control system for an internal combustion engine, the control system receiving an input signal from an engine speed sensor, receiving an input signal from an engine knock sensor, advancing the...
4986776 Marine shift speed equalizer  
A shift speed equalizer is provided in a marine transmission in a marine drive subject to a decrease in engine speed upon shifting from neutral to a forward or reverse gear due to a high propeller...
4976636 Trim apparatus for marine propulsion unit  
Several embodiments of marine outboard drives including an arrangement for automatically adjusting the trim condition of an outboard drive in response to an acceleration and/or deceleration...
4973274 Shift assisting device  
A shift assisting mechanism for a marine outboard transmission that includes a sensing device comprised of a pair of relatively movable levers with pressure responsive switches being effective to...
4971586 Small-sized self-propelled watercraft  
A self-propelled portable watercraft, including a deck and hull, an engine, and a waterjet propulsion system, capable of operating while a supply of air is unavailable. The air substitute,...
4964821 Jet powered rigid inflatable boat with dead-man switch  
In a rigid inflatable boat having a rigid hull with a bottom wall and side walls having top edges carrying floatation pontoon, a water jet drive is mounted on the bottom wall near a transom closing...
4962718 Hydrofoil propulsion system  
A hydrofoil propulsion system (10) utilizing dual water propellers (16) in combination with dual shrouded air propellers (18). The air propellers (18) and the water propellers (16) are powered by...
4955831 Ignition timing control system for outboard engine  
An arrangement for insuring that an internal combustion engine of an outboard motor will operate efficiently under all trim adjusted conditions of the outboard motor. If it is sensed that a change...
4944241 Engine vacuum-condition responsive safety system  
A safety system associated with an engine of a marine vessel wherein the safety system includes a blower, a control unit, and a plurality of sensors. A vacuum sensor is coupled to the intake...
4941854 Boarding sensor and controller for small watercraft  
A boarding sensor and control circuit for small watercraft providing a reflection sensor which outputs a non-boarding signal to the control circuit when the driver is not within the reflection...
4940433 Protective control system for watercraft  
A control for a high performance watercraft that will automatically cut engine power and stabilize pitch attitude when the watercraft is airborne. This device maintains a manually trimmed pitch...
4938721 Alarm device for marine propulsion unit  
A number of embodiments of controls for marine propulsion units having two engines and propulsion systems with abnormal running control devices operated in response to abnormal engine conditions....
4939660 Fuel conserving cruise system for a marine drive unit  
A system for optimizing the operating efficiency of a boat by balancing fuel consumption against cruising speed utilizes a comparison between engine speed and boat speed to effect automatic...
4934969 Tilt mechanisms for inboard/outboard engines  
A rotary switch and mounting arrangement therefore adapted to be detachably mounted on the gimbal housing of an outboard drive unit for controlling its power tilt and trim mechanism.
4931025 Posture control device for marine vessels  
A number of embodiments of watercraft propulsion unit controls for optimizing watercraft performance and maintaining stability. Performance is optimized in the illustrated embodiments by adjusting...
4909764 Ignition timing control system for marine propulsion unit  
A marine outboard drive incorporating a power operated tilt and trim arrangement and an arrangement for increasing the speed of the engine when the power operated tilt and trim device is operated...
4901050 Tilt sensor for vehicle steering shaft  
A tilt sensor for a vehicle steering shaft includes a base resistive element layer formed in an opposed contact with a base plate surface. A plural layer structure is provided with a protective...
4872857 Operation optimizing system for a marine drive unit  
A system for optimizing the operation of a marine drive of the type whose position may be varied with respect to the boat by the operation of separate lift and trim/tilt means includes an automatic...
4864959 Aquascooter  
An aquascooter apparatus including a controller for preventing problems associated with water leakage into the aquascooter. The aquascooter has a battery, a driving motor and a clutch in a housing,...
4861292 Speed optimizing positioning system for a marine drive unit  
A system for optimizing the speed of a boat at a paticular throttle setting utilizes sensed speed changes to vary the boat drive unit position vertically and to vary the drive unit trim position....
4861291 Marine engine protection device  
Several embodiments of marine outboard drives including devices for protecting the unit in the event of tilting up more than a predetermined extent. The protection devices slow the engine when the...
4842559 Position control system for a marine propulsion device  
A position control system for a marine propulsion device senses an undesirable operating condition in the propulsion engine, such as low cooling water pressure at high speed or high engine...
4824407 Trimming device for marine propulsion apparatus  
A trimming device for a marine propulsion apparatus wherein the operator may effect manual trim-up or trim-down adjustment to predetermined positions. In addition, a device is incorporated for...
4822307 Warning device for a watercraft provided with a plurality of marine propulsion engines  
A number of embodiments of warning devices for watercraft provided with a plurality of marine propulsion engines for providing an arrangement for avoiding course deviations in the event of an...
4813896 Trim angle control device for marine propulsion motors  
Several embodiments of semi-automatic trim controls for marine outboard drives wherein the operator may achieve trim up or trim down operation at his choice. In accordance with the various...
4778414 Trim angle control device for marine propulsion motors  
Several embodiments of semi-automatic trim controls for marine outboard drives wherein the operator may achieve trim up or trim down operation at his choice. In accordance with the various...
4767363 Control device for marine engine  
A control system for a watercraft that presents the existence of more than a predetermined degree of acceleration when the watercraft is being steered through a substantial steering angle.
4762079 Trim tab actuator for marine propulsion device  
A trim tab actuator for a marine propulsion device wherein a plurality of watercraft running conditions are sensed and a trim tab is automatically positioned so as to maintain the watercraft in its...
4759732 Trim tab actuator for marine propulsion device  
An improved trim tab actuator for a marine propulsion device wherein steering sharpness is improved by providing a pivotally supported trim tab that is steered in response to sensed steering...
4757971 Automatic engine lift for outboard motors  
A mounting assembly for an outboard motor includes a motor mount having a transom mounting bracket attachable to a boat transom and a motor supporting bracket spaced aft of and pivotally connected...
4747359 Apparatus for controlling the turn of ship  
When the right turn or left turn is set by operating one joystick lever, the bow thrustor arranged on the bow side generates the drift thrust in the rightward or leftward direction in accordance...
4743213 Self-halt device for water craft  
A self-halt device for water-jet, power-driven water craft is disclosed, which includes a duct connected at a forward end thereof to the atmosphere and, at its opposite end, to a water passage...
4739236 Portable helm  
There is disclosed a portable system to control and monitor the basic maneuvering functions of marine vessels: The control and monitoring functions are contained on a hand held, small and...
4734065 System for stable running of marine propulsions  
A number of embodiments of arrangements for stabilizing the running of a marine propulsion unit by slowing the speed of the propulsion unit when an underwater obstacle is struck. In some...
4728306 Marine propulsion auxiliary cooling system  
A marine propulsion auxiliary cooling system is provided by an electric auxiliary water pump (36) pumping sea water to cool the engine (4) and/or fuel line (14) after turn off of the engine to...
4718869 Marine engine throttle/transmission hydraulic actuator  
A single-lever hydraulic control system for marine applications which controls both engine throttle and the transmission engaged therewith, and which allows for multiple control stations.
4697535 Marine safety system  
A marine safety system comprising a first switch adapted to be activated by rising water in a ship's hull, and solenoid valves adapted to be operated by the switch and adapted to close sea cocks in...
4630205 System for automatically controlling navigation  
A system for automatically controlling navigation of a ship, particularly a small-sized ship in which the sole crew is on board, has a radio transmitter attached to the body of the crew, a radio...
4605375 Trim and tilt control for marine propulsion devices  
The electrical control for a hydraulically-actuated trim and tilt system of a marine propulsion device includes a trim-tilt switch movable between "off", "up" and "down" positions, a...
4565528 Tilting mechanism for marine propulsion device  
Several embodiments of trim and tilt arrangements for outboard drives that adjust the trim condition of the outboard drive unit in response to driving thrust and/or velocity of the boat so as to...
4525149 Marine propulsion device including ignition interruption means to assist transmission shifting  
Shifting of a marine propulsion device transmission drivingly connecting a drive shaft to an internal combustion engine and including a rotatable member operable to shift the transmission between...
Matches 251 - 300 out of 334 < 1 2 3 4 5 6 7 >