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Marine Propulsion > Screw Propeller Screw PropellerScrew Propeller patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.11/30/06 - 20060270287 - Boat propeller and method for assembling the same The present invention relates to a boat propeller and the assembly method therefor. The propeller comprises a hub and a plurality of separated blades to be integrally coupled with corresponding seats that are formed in the hub. Advantageously, during the assembly stage of the propeller, the blades can be orientated ... 09/07/06 - 20060199450 - Specialty research & development subject advanced propulsion systems (3) In marine use the propulsion system requires no propeller in the water causing marine life damage or disturbance in shallow water. In aviation uses noise levels are nil making vertical lift helicopter like air vehicles quiet and more desireable. ... 01/26/06 - 20060019557 - Outboard motor An outboard motor cam have a power transmission mechanism for transmitting rotational power of a crankshaft of an engine to a propeller through a drive shaft, an advancing/reversing-switching mechanism and a propeller shaft, and adapted to be propelled by the propeller being driven for rotation. A torque variation-absorbing device can ... 10/20/05 - 20050233654 - Rotatable lifting surface device having selected pitch distribution and camber profile Rotatable lifting surface devices, such as propellers, impellers, and turbines, and blades for such devices use camber profiles and pitch distributions to obtain performance from flexible devices and blades, made from materials like polymers and polymer-composites and even metals, that is substantially the same as the performance of stiff devices ... 10/06/05 - 20050221695 - Watercraft propulsion machine A watercraft propulsion machine equipped with an outboard motor is provided. The propulsion machine includes a propulsion machine body and the outboard motor. The propulsion machine body is detachably mountable to a hull. The outboard motor is mounted on a rotary shaft provided at the rear of the propulsion machine ... 09/29/05 - 20050215130 - 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 moved with ... 08/25/05 - 20050186861 - Exterior shear shoulder assembly for outboard motors and outdrives An exterior progressive shear shoulder assembly which is adapted for connecting a marine propeller to a propeller drive shaft in such a manner that a selected torsional resistance of the propeller with respect to the drive shaft is achieved. In one embodiment a driver engaging the propeller drive shaft also ... ### FreshPatents.com Support |