Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 8062082 | Marine drive unit with staged energy absorption capability A marine propulsion drive unit is provided with two energy absorbing structures, one comprising a crushable or deformable nose cone or leading edge of a driveshaft housing and the other comprising a frangible interface that allows the drive unit to separate from the... | 11/22/2011 |
| 8011983 | Marine drive with break-away mount A marine drive has a break-away mount mounting first and second sections of the drive and breaking-away in response to a given underwater impact against the second section to protect the first section and the vessel. ... | 09/06/2011 |
| 7867046 | Torsion-bearing break-away mount for a marine drive A marine drive has a break-away mount provided by hollowed-out threaded fasteners mounting first and second sections of the drive and breaking away in response to a given underwater impact against the second section to protect the first section and the vessel. ... | 01/11/2011 |
| 7722418 | Energy dissipation valves for hydraulic cylinders A method for configuring a hydraulic actuator to provide energy dissipation capabilities during low energy collisions while controlling energy dissipation during high energy collisions comprises biasing a valve member towards a closed position with a resilient membe... | 05/25/2010 |
| 7303595 | Impact absorbing isolator sleeve and assembly for mounting a trolling motor An assembly for mounting a trolling motor comprising an inventive flexible gripping isolator sleeve positionable around the trolling motor column and a retainer which receives and retains the gripping isolator sleeve in a manner effective for holding the trolling mo... | 12/04/2007 |
| 7294029 | Mount apparatus for a trolling motor A mount apparatus for a trolling motor provides latching positions for the stowed and deployed conditions of the trolling motor. Locking the mechanism in either the stowed or deployed positions is accomplished solely by moving the shaft of the trolling motor assembl... | 11/13/2007 |
| 7285029 | Support device for a trolling motor A support device for a trolling motor is attachable to an arm of the trolling motor to provide a cushion between the arm and a deck surface of a boat. This cushion inhibits bouncing of the arm of the trolling motor in response to a boat traveling over rough water or... | 10/23/2007 |
| 7191877 | Fluid flow regulation of a vehicle shock absorber/damper Shock absorber components, such as a radial bypass damper, an anti-cavitation valve (ACV) and an incremental flow metering valve IFMV. The damper is of a continuous, unitary construction with a main hole and auxiliary holes interconnected by passageways. The ACV has... | 03/20/2007 |
| 7160160 | Steering handlebar for outboard motor The steering handlebar for outboard motor provided herein includes a power tilt and trim switch for adjusting a trim angle and a tilt angle of the outboard motor. The switch is advantageously mounted to the handlebar at a position that provides good operability. In ... | 01/09/2007 |
| 7101236 | Marine propulsion unit A marine propulsion unit utilizing a turbine engine is provided as a drop-in module. The propulsion unit includes a base which forms a part of the hull. The propulsion unit includes a drive unit which is mounted to the engine. Both the engine and the drive unit are ... | 09/05/2006 |
| 7070469 | Dual propeller surface drive propulsion system for boats The dual propeller surface drive propulsion system for boats is a combined propulsion and steering system for vessels with inboard engines comprising an enclosed thrust bearing assembly mounted to the transom of the vessel, a transom box mounted to the transom of th... | 07/04/2006 |
| 7063031 | Wake control device for boat A wake control device for a boat, including a mounting member pivotally securable to the boat aft for pivoting about a first axis substantially transverse to the boat aft, a rudder member secured to the mounting member for pivoting about a second axis substantially ... | 06/20/2006 |
| 7056166 | Trolling motor assembly A trolling motor assembly for use with a watercraft is disclosed. The trolling motor assembly comprises a propulsion unit, a steering control unit, a motor tube, and a mount system having a first portion adapted to be mounted to a watercraft and a second portion ada... | 06/06/2006 |
| 7056169 | Connection device for a marine propulsion system A connection device for a marine propulsion system is provided in which a selective locking mechanism automatically connects or disconnects two components of the marine propulsion system together in response to rotation of a tube and a rod. This relative rotation of... | 06/06/2006 |
| 7001230 | Piston for tilt and trim unit of outboard drive of marine propulsion unit A very effective unit for adjusting the condition of a marine propulsion device that is constructed in such a way to protect the various components from wear caused by foreign particles that may be formed during its life by trapping the particles in a cavity formed ... | 02/21/2006 |
| 6984157 | Motor mounting mechanism A protective motor mounting mechanism for motors and propellers mounted at the lower end of a shaft and in the water which includes a clamp for fastening the rotor mechanism to the motor shaft and a stator mounted to a fixed cross piece and a release lever portion. ... | 01/10/2006 |
| 6857921 | Marine gas cylinder apparatus In a marine gas cylinder apparatus provided with a switching valve apparatus capable of switching a communication state among a piston rod side oil chamber, a piston side oil chamber and a gas chamber, the switching valve apparatus is structured such that each of re... | 02/22/2005 |
| 6558212 | Hydraulic tilt device for marine outboard drive A hydraulic tilt device for a marine outboard drive comprising a cylinder and a piston slidably supported in the cylinder and defining a first and a second chambers. A working fluid is contained in both of the chambers. A piston rod extends from the pisto... | 05/06/2003 |
| 6524144 | Spring assembly for trolling motor bracket A new and improved spring assembly for a trolling motor bracket which is used to mount an electric trolling motor on the deck of a watercraft or boat. The spring assembly includes a rod mount plate for slidably engaging the bracket arm of the trolling mot... | 02/25/2003 |
| 6394859 | Trolling motor bow mount impact protection system A bow mount trolling motor for a boat is disclosed. The bow mount trolling motor includes a chassis adapted to be mounted to a bow of the boat, a lower propulsion unit and at least one shaft supporting the lower propulsion unit and pivotally coupled to th... | 05/28/2002 |
| 6315623 | Drive means in a boat Drive assembly in a boat includes a propeller shaft housing (5) which projects downwards on the underside of the bottom (4) of the boat and is connected to a drive unit (1), arranged on the inside of the boat, via members (9) which, in the event of a load... | 11/13/2001 |
| 6309264 | Cylinder assembly for marine propulsion unit An improved hydraulic cylinder arrangement for a marine propulsion unit permits primarily effective tilt and trim movement through a compound tilt and trim cylinder. At least one first shock absorber valve is provided on a tilt piston and at least one sec... | 10/30/2001 |
| 6293837 | Trim-tilt device for marine propulsion unit A trim-tilt device for a marine propulsion unit is described, having a portion of a cylinder of a cylinder device which projects from a housing outward in a region of a trimming operation and is covered with a tank constituting a hydraulic fluid supply/di... | 09/25/2001 |
| 6213823 | Trim-tilt device for marine propulsion unit In a trim-tilt device for a marine propulsion unit (20), a check valve (121) is provided for allowing a hydraulic fluid to flow from a pump (24) to a first trim chamber (32A) and a first tilt chamber (42A), and a relief valve (122), which is opened if the... | 04/10/2001 |
| 6123590 | Tilt lock device for outboard motor A tilt lock device 10 comprises a piston 13 having a piston rod 14, an inner cylinder 12 defining the piston 13 into an upper oil chamber S1 and a lower oil chamber S2, and an outer cylinder 11 surrounding the inner cylinder 12. A communication passage 34... | 09/26/2000 |
| 6062924 | Tilt lock device for outboard motor A tilt lock device 10 comprises a cylinder 12, a piston 13 vertically slidably inserted into the cylinder 12, a piston rod 14 connected to an upper portion of the piston 3, upper and lower oil chambers S1 and S2 respectively formed in upper and lower port... | 05/16/2000 |
| 5984741 | Hydraulic tilt and trim control for marine propulsion A hydraulic arrangement for controlling the tilt and trim of an outboard drive. The hydraulic arrangement comprises a single cylinder assembly having a single bore inside wherein two separate pistons are supported for reciprocation and sealed to the cylin... | 11/16/1999 |
| 5975968 | Trim-tilt device for marine propulsion unit A trim-tilt device 20 for a marine boat motor has a housing 31 forming a large-diameter trim chamber 32, a cylinder 41 inserted into the trim chamber 32 of the housing 31 to form a small-diameter tilt chamber 42, and a piston rod telescopically inserted i... | 11/02/1999 |
| 5876259 | Tilt cylinder apparatus for boat propeller unit A tilt cylinder apparatus for a boat propeller unit comprising a cylinder unit containing an inside cylinder and an outside cylinder, an opening portion of the cylinders being closed by rod guides, a piston which is connected to an end of a piston rod pla... | 03/02/1999 |
| 5755604 | Boat propeller drive unit Boat propeller drive unit, comprising a frame-like carrier (1) intended to be fixedly joined to a boat transom, and a propeller rig (4) which is suspended in a fork (13) for trim and tilting movement relative to the fork about a horizontal axis (a). The f... | 05/26/1998 |
| 5607136 | Omni-directional breakaway mounting device for trolling motor A breakaway mounting device for a trolling motor, such as an electric trolling motor, includes a support frame adapted for coupling to a mounting assembly on the bow of a fishing boat. An omni-directional swivel joint is provided in the support frame for ... | 03/04/1997 |
| 5389019 | Tilt mechanism for outboard drive unit Three embodiments of hydraulic assemblies for controlling the position of an outboard drive mounted on the transom of a watercraft and for permitting the outboard drive to pop up when an underwater obstacle is struck and to return to its normal position o... | 02/14/1995 |
| 5368509 | Tilt lock system for outboard motor A hydraulic tilt lock mechanism for a marine outboard drive that resists popping up operation when the outboard drive is operated in reverse but permits the outboard drive to pop up when an underwater obstacle is struck with sufficient force when travelin... | 11/29/1994 |
| 5238432 | Marine drive unit impact avoidance system A marine drive unit impact avoidance system for boats having both outboard type drives and inboard/outboard type stern drives provides a structure by which the lower, propeller-mounting drive unit on a boat is mounted for vertical movement relative to the... | 08/24/1993 |
| 5222900 | Tilt cylinder arrangement for outboard drive A number of embodiments of hydraulic assemblies for interpositioning between a marine outboard drive and a watercraft for controlling the position of the outboard drive relative to the watercraft. Each embodiment includes a double acting cylinder assembly... | 06/29/1993 |
| 5195914 | Two-stage tilt cylinder mechanism for marine propulsion stern bracket assembly A shock absorber adapted for use with the swivel bracket assembly of an outboard motor or the like, is disclosed, which swivel bracket assembly permits rotation of the motor to clear an underwater object if and when a boat strikes such an object. The shoc... | 03/23/1993 |
| 5116267 | Yieldable protective mount for trolling motors A yieldable protective mounting mechanism for trolling motors incorporates a mounting base that is fixed to the deck structure or the stern structure of a small boat such as is typically used for recreational activities such as fishing. A motor support el... | 05/26/1992 |
| 4944705 | Tilt damper The invention consists of a novel tilt damper equipped with two oil chambers; one in the piston-rod extended position and the other in the piston-rod retracted position, which are respectively connected to a gas chamber through an oil passage where a reli... | 07/31/1990 |
| 4925411 | Marine propulsion device tilt and trim mechanism A marine propulsion device comprising a propulsion unit adapted to be mounted on the transom of a boat for pivotal movement relative to the transom about a generally horizontal tilt axis, and about a vertical steering axis, the propulsion unit including a... | 05/15/1990 |
| 4784625 | Tilt lock mechanism for marine propulsion device A tilt locking and shock absorbing arrangement for a marine outboard drive embodying a single cylinder and piston assembly for controlling the tilt and trim positions of the drive and for further absorbing shocks applied to it. An accumulator arrangement ... | 11/15/1988 |
