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Marine propulsion January recently filed with US Patent Office 01/12

20120021660 - Electronically assisted reverse gate system for a jet propulsion watercraft: An automatic trim system for a jet propulsion watercraft is provided. Control electronics are in communication with a steering angle sensor to monitor the steering angle of the watercraft, and evaluate a target setting for the trim taking the steering angle into consideration. Control signals are sent to an appropriate... Agent:

20120021659 - Marine vessel propulsion device and marine vessel including the same: A marine vessel propulsion device includes an engine, a jet propulsion unit, and a reverse gate. The jet propulsion unit includes a jet port arranged to jet water toward a rear of a hull. The reverse gate is arranged to be capable of being changed in opening degree between a... Agent: Yamaha Hatsudoki Kabushiki Kaisha

20120015566 - System and method for controlling a trolling motor: A trolling motor control system that includes a main controller configured interface with a trolling motor. The main controller is configured to control the output power and directional heading of the trolling motor. In at least one embodiment, the main controller has an electronic interface configured to establish a two-way... Agent: Johnson Outdoors Inc.

20120015567 - Ocean thermal buoyancy and propulsion system: A water navigable vessel or glider can transport cargo across oceans and other bodies of water without the use of fossil or nuclear fuels. The vessel includes a housing, a cargo or payload area within the housing, one or more control fins attached to the housing, a ballast within the... Agent: Lockheed Martin Corporation

20120015568 - Boat hull construction: A boat including a propeller tunnel portion formed in a hull of the boat in which a propeller rotates on an output shaft that extends from the propeller tunnel. A protrusion having a curved portion terminates in a tip portion. The protrusion extends from the propeller tunnel portion and the... Agent:

20120015569 - Ship propulsion system and ship equipped therewith: Marine propulsion system and ship outfitted therewith, wherein the marine propulsion system has a propulsion element for propelling a ship, a driving engine which is to be flexibly mounted at a hull of the ship for driving the propulsion element, a thrust bearing which is to be rigidly mounted at... Agent: Renk Aktiengesellschaft

20120009831 - Engine flushing system: A method of flushing internal water passages of a motorboat engine having the steps of attaching a water supply to a power head of the motorboat engine and flushing the internal water passages of the motorboat engine using a water flow which flows in a substantially downward direction after the... Agent:

20120003886 - Driveshaft sealing for a marine propulsion system: A sealing unit longitudinally comprises first and second sealing sub-units disposed around first and second portions of a driveshaft of a marine propulsion system of a watercraft. The first sealing sub-unit is sealingly connected to a front wall of the hull and the engine casing. The second sealing sub-unit is... Agent: Bombardier Recreational Products Inc.