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| Number | Title | Issue Date |
| 7048600 | Method and apparatus for air cooled outboard motor for small marine craft A belt driven outboard drive and engine assembly mountable to the transom of small flat bottom boats in much the same manner as water-cooled outboard engines. The assembly includes a lower drive shaft assembly that does not extend below the bottom of the boat, but e... | 05/23/2006 |
| 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 |
| 6179673 | Outboard motor protection apparatus An outboard motor protection apparatus is interposable between an outboard motor and a transom of a boat. The mounting of the motor on the transom of the boat is such as to allow for pivotal movement of the motor relative to the transom, about a first sub... | 01/30/2001 |
| 6039617 | Tilt cylinder device for outboard motor A tilt cylinder device has an exterior oil passage 61 outside a cylinder 51 for bringing oil chambers S6 and S7 into communication with each other, the exterior passage 61 is provided with a pump 72 and a control valve 73. A piston 13 is formed with a com... | 03/21/2000 |
| 5980339 | Hydraulic trim cylinder for marine stern drives and outboard motors It is an object of the current invention to provide a trim cylinder that is cost effective; it is further an object of the invention to provide a cylinder that has few parts, less than one-third the number of parts of present art; it is further an object ... | 11/09/1999 |
| 5664977 | Boat propeller sled A boat propeller sled comprising a spine, straps attached to the spine, and rails attached to the spine. The straps are sized to fit around an outboard motor lower unit, and to securely attach the spine to the lower unit. Each rail comprises a base attach... | 09/09/1997 |
| 5405274 | Trolling motor mount clutch slip-joint The present invention prevents damage to the trolling motor and the mount by providing a shock-absorption system capable of lengthening to allow the motor assembly to pivot out of the path of an obstruction. Adjustable friction force maintains the clutch ... | 04/11/1995 |
| 5399113 | Protector against submerged objects The lower portion of the outdrive of a stern drive motor or of an outboard motor for boats, is further protected from damage on striking submerged objects. Protection at low speed is gained by providing sharp or knife-like edge formed of rubber on the lea... | 03/21/1995 |
| 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 |
| 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 |
| 4597742 | Trimming arrangement for planing hulls An improved trimming arrangement is disclosed which is particularly suited for use with a craft having planing hull with a marine drive. In one embodiment, the trimming arrangement includes a submerged trim hydrofoil which is affixed to the drive housing ... | 07/01/1986 |
| 4557696 | Tilt mechanism for marine propulsion device A hydraulic arrangement for controlling tilt and trim of an outboard drive. The hydraulic arrangement comprises a single cylinder assembly having two separate cylinder bores in which separate pistons are supported for reciprocation. Each piston has a pist... | 12/10/1985 |
| 4555233 | Shock-absorbing bow mount for trolling motor An electric trolling motor mounting device having improved shock-absorbing capabilities. The device includes a substantially vertical bearing surface and a tube-securing element for holding the vertical tube structure which supports the motor under water,... | 11/26/1985 |
| 4516940 | Propulsion unit for a water-borne vessel A propulsion unit for a water-borne vessel has a drive transmission assembly comprising a drive shaft and a steering shaft which can be concentric with the drive shaft, a leg depending from the drive transmission assembly, for instance by way of a horizon... | 05/14/1985 |
| 4449945 | Outboard motor mounting arrangement Disclosed herein is a marine propulsion installation comprising a marine propulsion device including a transom bracket having a mounting portion fixed to the rear of a boat transom below the upper edge thereof, and a pair of laterally spaced arms extendin... | 05/22/1984 |
| 4325700 | Position-retentive valve seat for hydraulic cylinder A hydraulic cylinder having a piston position memory element is disclosed, and is particularly adapted for use with propulsion units for watercraft. A valve seat (76,242) is frictionally retained in a bore of a cylinder (24,200) and cooperates with a valv... | 04/20/1982 |
| 4175724 | Spring clip break-away A spring clip break-away is used as the upper swivel point on a collar which secures a trolling motor to a retractor mounted on the bow of a fishing boat. The spring clip break-away has at least one spring clip secured to an upper support arm of the retra... | 11/27/1979 |
| 4064824 | Hydraulically powered marine propulsion tilting and trimming system with memory A propulsion assembly includes hydraulic trim and tilt cylinders and a reversible pump effective when operating in a first mode, to supply hydraulic fluid under pressure to a first port and to provide suction at a second port and effective when operating ... | 12/27/1977 |
| 3983835 | Gas pressurized hydraulic marine propulsion tilting system with automatic let-down assembly Disclosed herein is a marine propulsion device including a member adapted to be attached to a boat hull, a propulsion assembly pivotally connected to the member for vertical swinging movement, a hydraulic cylinder-piston assembly connected between the mem... | 10/05/1976 |
| 3941072 | Steering system for canoes A steering system that is easily attached to and removed from a canoe wherein the system includes a first frame section having adjustable brace members and a sling assembly for gripping the end edge of the canoe. A second frame section, pivotally secured ... | 03/02/1976 |
