Outboard Marine Corporation

Martin J Mondek

Gerald F Bland

Lawrence E Zdanowicz

Donald K Sullivan

James C Kantola

Charles B Hall

Scott N Burmeister

Michael W Freitag

Roger B Whipple

Duane W Harris

Clarence E Blanchard

William B Rush, Ii

James S Nerstrom

Mark A Walter

A shift interrupt apparatus for a marine drive of the type which has an ignition system and a transmission that is adapted to be selectively shifted among forward, neutral and reverse operating positions. A control member is provided for selectively positioning the transmission of the drive into forward, neutral and reverse operating positions. The apparatus has a light circuit associated with a mechanical assembly adapted to detect excessive shifting force, which generates an electrical signal for interrupting the ignition to facilitate easier shifting.

Electronic ignition interruption apparatus

Disclosed herein is an outboard motor comprising a cylinder block including a lower horizontal drive shaft housing mounting surface, and a cylinder head mounting surface extending upwardly from the drive shaft housing mounting surface, a drive shaft housing including a peripheral outer surface including an upper end, a cylinder block mounting surface at the upper end, and a portion extending rearwardly from the cylinder block mounting surface and having therein a vertically open bore located forwardly of the outer surface, and a cylinder head comprising a cylinder block mounting surface fixed to the cylinder head mounting surface and including vertically spaced first and second recesses adapted to respectively form portions of first and second combustion chambers and respectively including first and second exhaust ports, a bottom surface extending transversely rearwardly from the cylinder block mounting surface of the cylinder head, a projection extending downwardly from the bottom surface and into the bore, and including an end surface having therein an exhaust gas outlet, and an internal exhaust passage extending between the exhaust ports and the exhaust gas outlet.

Outboard motor with four-stroke engine and exhaust gas discharge system

Disclosed herein is a marine propulsion device comprising a propulsion unit assembly having forwardly located laterally spaced portions respectively including laterally aligned outwardly opening sockets and laterally aligned horizontally extending apertures communicating with the sockets, a king pin assembly including a portion located between the laterally extending portions and including a laterally extending bore aligned with the apertures, rubber mount assemblies respectively engaged in the sockets and having respective bores in alignment with the bore in the king pin assembly, a laterally extending bolt projecting through the bores and through the apertures in spaced relation thereto and including a head engaging one of the rubber mount assemblies, and a nut threaded on the bolt and engaging the other of the rubber mount assemblies.

Vibration isolating mounting for outboard motor

Disclosed herein is an outboard motor comprising a propulsion unit including a lower unit having port and starboard sides and comprising a drive shaft housing having an upper end, a power head including an engine fixedly attached to said upper end of said drive shaft housing, and an engine cover assembly comprising a starboard lower cover member extending downwardly to said lower end of said drive shaft housing and including an inwardly open recess, a port lower cover member extending downwardly to said lower end of said drive shaft housing and including an inwardly open recess, and means connecting together said port and starboard cover members independently of said lower unit and in surrounding covering relation to said drive shaft housing, and means resiliently supporting said lower cover members on said lower unit and including rubber mounts respectively extending from said port and starboard sides of said lower unit and into said inwardly open recesses of said lower cover members.

Outboard motor cover assembly

A marine propulsion device including a lower unit, a propeller shaft rotatably supported by the lower unit and to support a propeller, the shaft including a longitudinal axis and a surface defining a plane which is substantially normal to the axis, and a thrust washer for transmitting thrusting force from the propeller to the surface.

Marine propulsion device

Apparatus for use in cooling a marine engine is disclosed which includes a cylindrically shaped impeller having a plurality of vanes attached thereto, a housing with a main chamber in which the impeller is located, the impeller being driven by a drive shaft of the engine. The housing has a second chamber located between the main chamber and an outer end wall through which water is pumped to cool the separating wall between the chambers, which may be heated by the rotating impeller during operation.

Marine engine housing cooling apparatus

A marine propulsion device comprising a propulsion unit including an internal combustion engine, a shroud substantially enclosing the engine, and a duct having a first end communicating with the shroud and an opposite second end being adapted for connection to an opening in the transom of a boat to enable the engine to draw combustion air from the interior of the boat, the duct including a flexible portion and a rigid portion.

Pivotal air induction for marine propulsion unit

A marine propulsion device comprising a propulsion unit which is adapted to be mounted on a boat transom and which includes an exhaust passageway having an upstream end adapted to communicate with an engine, and a mechanism for introducing water into the exhaust passageway at a location downstream of the upstream end.

Marine propulsion device exhaust system

A stern drive unit comprising a gimbal housing which is adapted to be mounted on the transom of a boat and which has therein an exhaust-water passage including a forwardly opening inlet, a rearwardly opening outlet, an exhaust conducting portion, a water conducting portion, and a water outlet communicating with the water conducting portion.

A marine propulsion device comprising a propulsion unit including an internal combustion engine, a shroud substantially enclosing the engine, and a duct having a first and communicating with the shroud and an opposite second end being adapted for connection to an opening in the transom of a boat to enable lthe engine to draw combustion air from the interior of the boat, the duct including a flexible portion and a rigid portion.

A marine propulsion device comprising a housing adapted to be mounted on the transom of a boat and adapted to rotatably support a propeller, a drive shaft rotatably supported by the housing and adapted to be drivingly connected to the propeller, a bevel gear supported in coaxial relation to the drive shaft for rotation relative thereto, a clutch element fixed to the bevel gear for common rotation therewith, a bearing located between the bevel gear and the housing, and a bearing located between the clutch element and the drive shaft.

Marine propulsion device bearing arrangement

A marine propulsion device comprising a housing adapted to be mounted on the transom of a boat, a first gear rotatably supported by the housing and adapted to be drivingly connected to a propeller, a pump, and a second gear which is driven by the first gear and which is drivingly connected solely to the pump.

Marine propulsion device gear arrangement

A marine propulsion device comprising a lower gearcase, a bearing housing which is supported by the lower gearcase and which includes an exterior surface having therein an annular groove, a propeller shaft rotatably supported by the bearing housing and adapted to have mounted thereon a propeller, and a retaining member which is supported by the lower gearcase and which extends into the groove.

Marine propulsion device retention mechanism

A marine propulsion device comprising a gear housing adapted to be mounted on the transom of a boat, a lever mounted on the gear housing for pivotal movement relative thereto about a first axis, a clutch mechanism supported by the gear housing, a mechanism for actuating the clutch mechanism in response to pivotal movement of the lever, a link, a mechanism connecting the link to the lever for pivotal movement relative thereto about an axis spaced from the first axis, a guide member adapted to be connected to a control mechanism, a mechanism for guiding movement of the guide member relative to the gear housing, and a mechanism for connecting the guide member to the link.

Marine propulsion device shift linkage

A marine propulsion device comprising a gear housing adapted to be mounted on the transom of a boat, a clutch assembly including a clutch housing, a shaft rotatably supported within the clutch housing and adapted to be drivingly connected to a propeller, opposed bevel gears coaxially supported within the clutch housing for rotation relative to the shaft, and a clutch mechanism located between the bevel gears for causing selective and alternative driving engagement of the bevel gears and the shaft, and a mechanism for affording insertion of the clutch assembly as a unit into the gear housing and for affording removal of the clutch assembly as a unit from the gear housing.

Growing community of inventors

Wonder Lake, IL, United States of America

Martin J Mondek