| Patent Number |
Title Of Patent |
Date Issued |
| 5514013 |
Boat propulsion unit |
May 7, 1996 |
| A boat propulsion unit adapted to be suspended on the outside of a boat transom and drivably connected to an engine on the inside of the transom. The unit comprises a propeller drive shaft housing, a suspension arrangement adapted to be fixedly secured to the transom, a pivot which p |
| 5514011 |
Propeller arrangement for a marine propulsion unit |
May 7, 1996 |
| A propeller has a hub affixed to a propeller shaft so as to rotate therewith. The hub is axially locked by a locking arrangement consisting of a lock nut screwed on to the shaft and a lock screw screwed into the end of the shaft to lock the nut. The screw is tightened more than the nut |
| 5509863 |
Transmission device, especially for boat motors |
April 23, 1996 |
| Transmission for boats, comprising an input shaft (2), a reversing mechanism and an output shaft (3). The reversing mechanism is comprised by a right angled bevel gearing with two bevel gears (7, 8), which are freely rotatably mounted on an intermediate shaft (4) and engaged with a bevel |
| 5509834 |
Boat propulsion unit |
April 23, 1996 |
| A boat propulsion unit adapted to be suspended on the outside of a boat transom and drivably connected to an engine on the inside of the transom. This unit comprising a propeller drive shaft housing, a suspension arrangement adapted to be fixedly secured to the transom, a pivot which |
| 5509833 |
Boat propulsion unit |
April 23, 1996 |
| Boat propulsion unit comprising a suspension arrangement (2) and a propeller drive shaft housing (3) which, via a lower and an upper universal joint (22, 24, respectively), are pivotally connected to each other. The suspension arrangement comprises a frame (5) in the form of an extru |
| 5509323 |
Transmission device, especially a reverse gear for boats |
April 23, 1996 |
| A reverse gear for boats, comprising a bevel gear transmission with two gears (4,5) rotatably mounted on a secondary shaft (8) and alternately engageable with the shaft by means of an engaging sleeve (11). The engaging sleeve is made of bronze and has outer engaging cones (12,13), wh |
| 5503098 |
Air-purging device for hydraulic boat steering arrangements |
April 2, 1996 |
| A device for purging marine hydraulic steering systems containing a hydraulic pump actuated by a boat steering-wheel and having first and second fluid inlet/outlet ports, a hydraulic piston cylinder device with first and second chambers on either side of the piston and first and seco |
| 5441432 |
Boat propeller drive unit |
August 15, 1995 |
| An outboard boat propeller drive unit with an anti-cavitation plate (6) above the propeller or propellers (4,5) has an exhaust duct (7) extending through the anti-cavitation plate. The exhaust duct (7) has its outlet port (11) located on the underside of the anti-cavitation plate level w |
| 5441025 |
Device for starting and stopping a diesel engine |
August 15, 1995 |
| An electromagnetic device for starting and stopping diesel engines. The device comprises a spring biased pulling-rod (12) which is joined to the armature of the electromagnet (11), a lever biased by a spring (6) has a cam roller (7) which presses against the rod. The lever is fixed on a |
| 5423701 |
Propeller arrangement for a marine propulsion unit |
June 13, 1995 |
| A double propeller arrangement for a marine propulsion unit, for example of the type which includes a so-called stern-drive. Each propeller has a hub consisting of an inner sleeve with splines for attachment to a propeller shaft, an outer sleeve with propeller blades, and an elastic bush |
| 5409410 |
Hydraulic steering arrangement, in particular for boats |
April 25, 1995 |
| Hydraulic steering arrangement, comprising a first hydraulic pump connected to a steering wheel, a piston cylinder device hydraulically coupled to the first hydraulic pump and arranged for connection to a steering mechanism, a second hydraulic pump and a second piston cylinder device hyd |
| 5408945 |
Cable steering device, especially for boats |
April 25, 1995 |
| Cable steering device, especially for boats, with an operating cable (3, 4) extending between a steering wheel mechanism (1, 2) and a steering mechanism (8, 10). The operating cable consists of a flexible sheath (3) and a flexible operating core (4) displaceable in the sheath. The cable |
| 5399112 |
Servo assisted cable steering mechanism, especially for boats |
March 21, 1995 |
| Servo-assisted cable steering arrangement, especially for boats, with an operating cable (4) connected to a steering wheel mechanism (1, 2) and displaceable in a casing (3). The outer end of the operating cable is joined to an operating rod (6) connected to a steering mechanism. The rod |
| 5376033 |
Boat propulsion unit |
December 27, 1994 |
| Boat propulsion unit comprising a suspension arrangement (2) and a propeller drive shaft housing (3) which, via a lower and an upper universal joint (22, 24 resp.), are pivotally connected to each other. The lower joint has a ball (25) which is attached to the drive shaft housing. Th |
| 5370075 |
Twin outboard stern drive boat propulsion unit |
December 6, 1994 |
| Boat propulsion unit, comprising two outboard Propeller drives (3,4), having anti-cavitation plates (7), which are coupled to each other via a tie-bar (10) with a wing profile. In the trim position of the stern drive for low speed, the wing profile has an angle of attack in order to exer |
| 5364295 |
Boat propulsion unit |
November 15, 1994 |
| Boat propulsion unit comprising a suspension arrangement (2) and a propeller drive shaft housing (3) which, via a lower and an upper universal joint (22, 24 resp.), are pivotally connected to each other. The suspension arrangement comprises a hollow frame member (5) made from extrude |
| 5358435 |
Boat propulsion unit |
October 25, 1994 |
| Boat propulsion unit comprising a suspension arrangement (2) and a propeller drive shaft housing (3) which, via a lower and an upper universal joint (22, 24 resp.), are pivotally connected to each other. A hydraulic piston-cylinder arrangement (35) has its cylinder connected to the u |
| 5253604 |
Electro-mechanical steering device, especially for boats |
October 19, 1993 |
| An electro-mechanical steering device for boats, comprising a push-pull cable (11) coupled between a steering gear (3) and a steering arm (12). The cable jacket is connected with play to the gear housing. The steering gear is coupled to a command value sender (8), the signal of which is |
| 5228548 |
Single lever control for boats |
July 20, 1993 |
| One-lever control with clutch and throttle function for marine power plants. The control lever (7) is solidly joined to a rotatable cam element (8) which actuates electrical switch (10, 11), which are connected to an electrical servo motor (S) to control the forward-reverse clutch functi |
| 5141374 |
Lock nut device |
August 25, 1992 |
| A lock nut device consists of a lock nut (22) and a lock spring (31). The spring is bent into an U-shape and extends in a axial plane over the nut. It has spring legs (32) lying in grooves (25) in the nut and has end portions formed for engagement with the profile portion (16) on a n |
| 5085396 |
Bed structure for supporting engines and auxiliary units |
February 4, 1992 |
| The invention relates to a bed structure for supporting driving and driven units, such as internal combustion engines and generators for instance. The bed structure comprises a first frame section which serves as a transport frame and bed for the engine, and a second frame section which |
| 5049097 |
Steering shock absorber for boat propeller drive units |
September 17, 1991 |
| A shock absorber for absorbing external momentary steering forces acting on a steerable stern drive for boats. The shock absorber (11) is a hydraulic piston-cylinder device which is articulated between the anti-cavitation plate (9) of the drive (3) and a fixed portion (4) of the boat. |
| 5048291 |
Exhaust muffler for marine engines with two rows of cylinders |
September 17, 1991 |
| An exhaust muffler for marine engines with two rows of cylinders, especially V-engines. The exhaust muffler comprises a horizontal cylindrical container (20) mounted transverse to the rows of cylinders and having an exhaust inlet (26) and an exhaust outlet (27) for each row of cylind |
| 5046977 |
Exhaust muffler for marine engines |
September 10, 1991 |
| An exhaust muffler for marine engines comprises a cylindrical container arranged to be mounted with its longitudinal axis horizontal and traverse to the longitudinal axis of the engine. The container forms an expansion chamber, which is closed at one or both ends by an end piece (23) |
| 5029472 |
Measuring instrument, preferably for watercraft |
July 9, 1991 |
| A measuring instrument comprising an instrument body (1), a dial (2), an attachment plate (3) on the instrument body behind the dial, and a transparent front plate (4) covering the dial. The front plate is permanently and water-tightly attached to at least one of the attachment plate |
| 4985005 |
Boat-propeller unit |
January 15, 1991 |
| A boat-propeller unit comprises a carrier (4), a propeller-leg (5) and a sensor (13) which senses the angle of the propeller-leg relative to the carrier and which is intended for connection to an electrical indicating instrument mounted on the instrument panel of the boat. The sensor is |
| 4891025 |
Arrangement in boat propeller installations |
January 2, 1990 |
| The invention relates to an arrangement in propeller installations including means for supplying motor exhaust gases to the vicinity of the propeller (7). The invention is characterized in that a gas outlet (4) is located immediately forwards of the propeller and directs the gas flow |
| 4840136 |
Propeller drive for boats |
June 20, 1989 |
| A double-propeller drive unit for boats, in which the under-water housing of the drive unit is designed so that the pressure center for the transverse force on the drive housing caused by water flow is located in front of the steering axis of the drive unit. |
| 4767269 |
Rotor system, particularly a boat propeller system |
August 30, 1988 |
| The invention relates to a rotor system, particularly a boat propeller system, which consists of a main propeller and a turbo unit in the form of a fore-propeller and a turbine mechanically coupled thereto, the turbo unit being freely rotatably journalled. |
| 4741713 |
Boat propeller drive unit |
May 3, 1988 |
| A boat propeller drive unit of the inboard-outboard type, having a portion securely mounted in an opening in a boat transom and adapted to be drivingly connected to a motor inboard of the transom, and having a propeller leg disposed outboard of the transom. This leg is adjustable to |
| 4741670 |
Propeller combination for a boat propeller unit |
May 3, 1988 |
| The invention relates to a boat propeller unit with double, counter-rotating propellers. The forward propeller is designed to function without cavitation, while the after-propeller is optimally cavitating by being made cupped and with a blade width of between 60% and 75% of the blade |
| 4717130 |
Power unit suspension system |
January 5, 1988 |
| The invention relates to a shock and vibration damping suspension system for mounting a power unit in relation to an engine bed or the like. The power unit comprises a motor or engine and a power transmission arrangement coupled thereto, preferably an inboard-outboard drive for water |
| 4698036 |
Propeller drive for boats |
October 6, 1987 |
| A double-propeller drive unit for boats, in which the under-water housing of the drive unit is designed so that the pressure center for the transverse force on the drive housing caused by water flow is located in front of the steering axis of the drive unit. |
| 4662435 |
Heat exchanger comprising nested containers |
May 5, 1987 |
| Heat exchanger, especially a combined cooling water filter device and oil cooler for sea-water cooled boat motors, in which the cover of the filter container is built together with a container extending down into the filter container and having an inlet and an outlet for the oil to be |
| 4652878 |
Trim indicator for boats with outboard propeller drive units |
March 24, 1987 |
| An indicator instrument for boats with outboard drive units which can be adjusted to various angles in relation to the transom and which has an indicator, preferably an LCD which shows the angle of the drive unit within the entire adjustment range, and an indicator, preferably an LED |
| 4624643 |
Boat propeller drive unit with trim/tilt sensor |
November 25, 1986 |
| A boat propeller drive unit, a so-called inboard-outboard drive unit, has a sensor which senses the trim/tilting angle of the drive unit and is designed to be connected to an electrical indicator instrument on the boat instrument panel. The sensor is a potentiometer mounted in a recess i |
| 4619584 |
Double propeller drive for boats |
October 28, 1986 |
| A boat propeller drive with double, counter-rotating propellers is distinguished by the after propeller having one more blade than the fore propeller as well as a smaller diameter than the fore propeller. |
| 4604032 |
Rotor device |
August 5, 1986 |
| The invention relates to a rotor device, preferably a boat propeller device. The propeller shaft drives, via a planetary gear system, two propellers in the rotational direction of the shaft and one propeller counter to the rotational direction of the shaft. The propellers are dimensi |
| 4600395 |
Boat drive |
July 15, 1986 |
| A boat drive has a leg formed by three portions, the upper portion passing through the transom opening and may be preassembled with the inboard engine. Lower leg portions are readily detachable from the upper. The leg has a forward and an aft engine cooling water intake ports. A water pu |
| 4589850 |
Boat propeller drive unit |
May 20, 1986 |
| In an outboard drive unit for boats, the drive shaft housing is swingable by hydraulic cylinders for trimming and tilting. One end of each cylinder is pivotally journalled in the shield of the drive unit, whereas the opposite cylinder ends bear against abutment surfaces on the carrier fo |
| 4543068 |
Inboard outboard drive and mounting therefor |
September 24, 1985 |
| An inboard outboard drive is at the housing portion passing through the hull provided for sealing and damped support, with a resilient element with a non-collapsible cross-sectional shape which is subject to a constantly acting compressing force, conveniently generated by the weight |
| 4529387 |
Propeller drive unit for boats |
July 16, 1985 |
| A double propeller drive unit for boats having an inclined steering axis and a trim fin arrangement which is fixed to the cavitation plate of the drive unit, is disposed in the boundary region between the propellers, and is designed to balance torques acting on the drive unit. |
| 4501560 |
Inboard outboard drive |
February 26, 1985 |
| An inboard outboard drive for boats, particularly planing boats, of the S-type comprising an inboard engine and a vertical propeller leg having an upper inboard end and extending through an opening in the hull to an outboard propeller carrying portion. The engine has a horizontal output |
| 4478585 |
Inboard outboard drive and mounting shield therefor |
October 23, 1984 |
| An inboard outboard drive having a structural part which passes through an opening in the hull of a boat. A mounting shield for supporting the structural part is at its inner portion provided with symmetrical receiver grooves into which the support flanges on the structural part may be |
| 4474072 |
Transmission, especially for boat motors |
October 2, 1984 |
| Transmission, especially for boat motors, with a shift mechanism in which an amplification of the clutch force is achieved by threaded engagement of the gear-engaging sleeve with the associated shaft. The transmission has shock and oscillation absorbers built into the housing, comprising |
| 4403969 |
Outboard drive |
September 13, 1983 |
| A trim and tilt arrangement for an outboard drive includes an elongated support pivoted at their forward ends on the lower part of the rudder post and at their rearward ends interconnected by a connection which with the aid of elongated slots in both side walls of the outboard drive casi |
| 4397198 |
Marine transmission assembly system |
August 9, 1983 |
| A reversing double cone clutch drive assembly for a boat comprising a horizontal input shaft, a vertical intermediate output shaft, a first housing provided with an opening in a side wall opposite to the input shaft and an opening in a bottom wall through which the lower end of said |
| 4364711 |
Folding boat propeller |
December 21, 1982 |
| A boat propeller with foldable blades, a so-called folding propeller, in which the mounting axes of the blades in the hub are inclined towards the rotational axis of the hub, so that the blades are movable between their folded and unfolded positions by rotating essentially one-half turn. |
| 4275991 |
Boat propeller |
June 30, 1981 |
| The invention relates to a boat propeller with foldable blades, a so-called folding propeller. The characteristic feature of the propeller is that it is provided with resilient structure disposed to brake the swinging movement of the blades as they are spread out from the folded position |
| 4241620 |
Balance wheel |
December 30, 1980 |
| The invention relates to a balance wheel for rotating machines, especially combustion engines, including, for example, outboard motors. Hitherto, such balance wheels or flywheels have been manufactured from different non-ferrous metals as zinc or aluminum alloys, and in one embodiment th |
