Matches 1 - 50 out of 119 1 2 3 >
Match Document Document Title
7503817 Outboard engine system  
An outboard engine system includes: an engine; a casing to which the engine is removably mounted at an upper portion; a torque converter; a vertically arranged output shaft connected to a...
7500891 Outboard motor  
An outboard motor having a grommet mounted on a lower cover is disclosed. The grommet is positioned outward from an area directly under a surface in which an upper cover and lower cover meet as...
7494392 Outboard motor shaft support  
A marine outboard motor has a rotary bearing on the vertical drive shaft intermediate its ends. This bearing is mounted in a housing that joins the power head to the lower unit. The bearing...
7485020 Outboard motor  
An outboard motor includes a case extending generally vertically and supported on a hull. An engine is supported at an upper end of the case. A propeller is supported by a lower end of the case. A...
7485019 Molded motor silencing system having a vibro-acoustic material  
An apparatus and method for silencing an engine are disclosed. A silencer is disposed about a motor and is molded to substantially match at least one of a contour of the cover and a contour of the...
7452251 Integrated outboard motor  
An outboard drive has an electric motor that is electronically controlled from an inverter. The outboard drive includes a pylon, with the electric motor and inverter arranged in the pylon.
7431621 Drive shaft supporting structure for a small boat, and personal watercraft incorporating same  
A drive shaft supporting structure for a small boat is provided which permits simplification of a hull and for which manufacturing productivity is increased. The drive shaft supporting structure...
7413492 Watercraft with engine housing  
A watercraft includes a hull, an engine, and a housing adapted to completely enclose the engine, the housing being adapted to be removably disposed in the hull.
7413491 Marine vessel propulsion structure and marine vessel driving apparatus  
In an outboard drive or an inboard-outboard drive, power generated by a single engine is transmitted in left and right directions from a main drive shaft, thereby finally causing left and right...
7322866 Outboard engine  
An outboard engine comprises a power source inside a power source compartment. The power source room is formed by an upper cover and an undercover. A buoyant body is disposed outside the power...
7226327 Outboard drive for boats  
An outboard drive for boats, having a steerable underwater housing ( 1 ) which has a wing-profiled portion ( 2 ). Projecting at an approximately 90 degree angle from the aft part of one side face (...
7210972 Outboard engine  
An outboard engine with a cover for allowing for an improved outward appearance is disclosed. The engine includes a leg case that houses a drive shaft for transmitting the output from the engine to...
7131877 Method for protecting a marine propulsion system  
An electrically conductive coating is provided on a housing structure of a marine propulsion system. By impressing a current on the electrically conductive coating, which can be a polymer material,...
7104856 Rigging apparatus for an outboard motor  
A rigging apparatus is provided for an outboard motor in which an attachment member is shaped to be rigidly attached to a housing structure, or cowl, of an outboard motor, without the need for...
7097522 Water pickup configuration for a marine propulsion system  
A cooling system for a marine propulsion device provides a water flow directing device, which is generally annular in shape, which has a water inlet extending from it. The water flow directing...
6966806 Replaceable leading edge for a marine drive unit  
A marine propulsion device is made of first and second portions which are removably attachable to each other. The second portion is the leading edge portion of the nose cone and the drive shaft...
6962047 Engine intake A/F ratio control system in outboard engine system  
In an engine intake A/F ratio control system in an outboard engine system, a secondary air passage (P) for supplying secondary air for regulating the A/F ratio of an air-fuel mixture is connected...
6921305 Outboard motor  
An outboard drive unit for a watercraft to allow propulsion of the watercraft in mud and water. The drive unit has a reduction gear assembly mounted between a motor and a propeller assembly,...
6882289 Monitoring and control of watercraft propulsion efficiency  
Readout devices and controls are provided that alert the user to unusual propeller slip conditions. Embodiments of the invention incorporate some signal processing to account for a progressively...
6758706 Marine propulsion housing arrangement  
A marine propulsion housing arrangement includes an improved construction for inhibiting an influx of water into the housing and for protecting the components thereof. A marine outboard drive...
6672917 Process for improving an anodizing film, an anodizing film structure and an aluminum-alloy-made outboard engine  
A process for forming an improved anodizing film on the surface of an aluminum alloy material. The film is impregnated with an amorphous substance which fills pores formed in the film during its...
6645021 Intake system for outboard motor  
A cowling assembly for an outboard motor includes an improved construction that can supply relatively cool air containing little water to the induction device and can also supply air to cool engine...
6585545 Shielded tilt-trim subsystem for boats using a stern drive system  
A stern drive system having an outdrive generally disposed downstream relative to water flow aft a transom of the boat is configured to be rotated about a generally horizontal axis to impart a...
6579135 Outboard engine  
An outboard engine with a grip recess formed on a part of an engine cover surface. The grip recess can be used as a handle by inserting an operator's hand thereinto. The outboard engine may be...
6558213 High performance engine skeg  
The present invention, in one form, is a skeg having an airfoil shape which facilitates maintaining engine control even at high speed but does not adversely affect engine performance. In one...
6468119 Composite stern drive assembly  
Stern drive assembly configured for utilization in an inboard/outboard power plant for a boat. The stern drive assembly includes a central rigid core that is configured at an upper portion to be...
6413129 Outboard drive housing cooling system  
An outboard motor includes a power head, driveshaft housing and lower unit, and employs a cooling system to cool the driveshaft housing. Portions of the driveshaft housing experience substantial...
6350166 Outboard engine with resonance-avoiding exhaust housing  
A propulsion system for a boat has a powerhead or a motor with an exhaust port for exhaust gases. The exhaust gases are exhausted through the propeller hub via an exhaust housing. The exhaust...
6283809 Outboard motor exhaust system  
An exhaust system for an outboard motor includes an improved construction that can reduce cost for providing an expansion chamber of an idle exhaust discharge. The outboard motor includes an engine...
6283807 Anti-splash device for marine outboard drive  
A marine outboard drive, such as an outboard motor, includes both a splash plate and an anti-splash device. The anti-splash device includes a second splash plate that is provided on a lower mount,...
6257940 Outboard motor with centralized rigging  
An outboard motor includes a propulsion unit having a power head which includes an internal combustion engine, a lower unit including a drive shaft housing fixed to the engine and a propeller shaft...
6254443 Replaceable tower support for a bearing race and drive shaft in a marine engine  
A housing for an outdrive is installed with a replaceable tower support for a ball bearing race through which the drive shaft rotates. When the bearing race becomes worn, rather than replacing the...
6250071 Housing for a disk propulsion system and a method of using the same  
A housing for a propulsion system, such as for a plurality of disks, is provided as well as a system and a method for using the same. The housing is shaped to provide a streamlined motion through a...
6241566 Cooler for marine stern drive  
Cooling apparatus for the stern drive unit of a marine inboard-outboard drive system, the cooling apparatus being of the kind making use of the ram effect and having an intake tube carried on the...
6234855 Driveshaft housing for outboard motor  
A driveshaft housing for an outboard motor includes an improved construction. The outboard motor comprises a power head containing an engine, the driveshaft housing depending from the power head...
6183322 Operation cable mounting structure of outboard motor  
An outboard motor is provided with an engine covered by an engine cover composed of a plurality of cover elements and formed with a port member having an cable insertion port through which...
6176751 Engine cover unit of outboard motor  
In an outboard motor, an engine is covered by an engine cover unit, and the engine cover unit comprises a lower cover section covering a surrounding of a lower portion of an engine in a usable...
6146222 Cooling device in outboard engine system  
In an outboard engine, a support member for supporting a drive shaft and an exhaust pipe within an extension case can be cooled by outside water pumped by utilizing the exhaust pressure from the...
6066013 Drain structure of an outboard motor  
In an outboard motor, a simple drain structure is provided which can drain the water that has entered the engine compartment while effectively preventing water from entering the engine compartment...
6048236 Lower unit for marine propulsion system  
A marine outboard drive that is equipped with integrated splash plates and a baffle plate that prevent water splash-up along the drive shaft housing. The baffle plate protrudes from the drive shaft...
6036558 Outboard motor  
An outboard motor generally comprises an engine holder to be mounted to a hull, an engine disposed in an upper portion of the engine holder in a mounted state thereof, an oil pan disposed in a...
5967866 Texture gearcase for a marine propulsion system  
A lower unit for a marine propulsion system has a flow disrupter positioned along the side wall of the vertical strut above the torpedo gearcase. The strut has a high pressure side and low pressure...
5967865 Outboard splash plate arrangement  
A outboard motor mounting system where there is a device for connecting the steering shaft to the drive shaft housing and lower unit comprised of an attaching bracket at least partially encircling...
5839929 Protection device for the lower gear housing of a boat motor  
A protection bar for the front edge of the lower housing portion of a drive housing of the boat motor comprises an elongate bar with a grooved rear edge friction fit on the front edge of the...
5766047 Twin propeller marine propulsion unit  
A twin propeller marine propulsion unit for a watercraft. A vertical drive shaft operably connected to the engine is journaled for rotation in a lower gear case and carries a beveled pinion that...
5716248 Sacrificial anode for marine propulsion unit  
Sacrificial anode arrangements for marine propulsion units wherein the sacrificial anode is juxtaposed to the trim tab and is detachably connected to the lower unit housing by fastening means which...
5643024 Adapter plate  
An adapter plate to attach a four cycle internal combustion verticle shaft engine to an outboard motor lower drive unit creating a four cycle internal combustion engine outboard motor for powering...
5643023 Marine engine gear case cover  
The present invention is a skeg cover which may be fitted onto either a damaged skeg or a new skeg to prevent shaft, gear, or propeller damage. The present invention is constructed such that it is...
5549492 Outboard motor  
An outboard motor incorporating a unitary mounting assembly for resiliently connecting the steering shaft to the driveshaft housing. The mounting assembly also closes an upper portion of the...
5536188 Nose cone method and apparatus  
A nose cone attachment for an outboard motor propeller gearcase has a molded polymer housing shaped to fit over the front and sides of an outboard propeller gearcase and has an aerodynamic...
Matches 1 - 50 out of 119 1 2 3 >