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| Number | Title | Issue Date |
| 7351124 | Water-tight drive-penetration compartment A water-tight compartment for containing a penetration point on the hull of an amphibious vehicle, comprising a bottom panel comprising the hull of the amphibious vehicle; a forward panel of the box comprising a forward bulkhead of the amphibious vehicle; a rearward... | 04/01/2008 |
| 7244154 | Single and multi-engine drive system for a twin screw vessel In a twin screw marine vessel that has two engines arranged in tandem along the vessel's centerline, a drive system allows both engines to drive the propellers or, alternatively, either engine to drive both propellers independently (e.g. one in forward, the other in... | 07/17/2007 |
| 7131386 | Marine propulsion system with pressure compensated hydraulic supply capability A hydraulic system for a marine vessel incorporates a single hydraulic pump that can be driven by either first or second motive devices, such as an internal combustion engine or an electric motor. Depending on the circumstances, the pressure required by the hydrauli... | 11/07/2006 |
| 7077632 | Blower having a blower tube incorporating a reduction device for reducing the clear flow cross section of said blower tube at idle operation A blower (1) has a housing (10) to which a blower pipe (2) may be removably connected. An internal combustion engine located within the housing (10) drives a blower wheel. The blower wheel, in turn, generates an air flow (11) withi... | 07/18/2006 |
| 6978617 | Power generation system using a combustion system and a fuel cell A regenerative fuel cell is combined with a combustion engine such as a Pulse Detonation Engine (PDE) to create a closed-loop power generation system. Stored hydrogen and oxygen are used by the regenerative fuel cell, and by the combustion engine, in which the react... | 12/27/2005 |
| 6846208 | Wave rotor based power and propulsion generation for a marine vessel A hybrid power and propulsion generation system for a marine vessel is provided that combines a fuel cell with a wave rotor/combustor. A wave rotor that uses gas dynamics (shock and expansion) processes within rotating passages, using a hydrogen and oxygen supply in... | 01/25/2005 |
| 6688924 | Two-engine propulsion system for a ship A propulsion system for a ship having one front and one rear propelling engine (M1, M2), the propulsion powers of which can be coupled to an output shaft (7) via a gear system (6). The shafts of the gear mechanism are disposed on top of each other in an e... | 02/10/2004 |
| 6676462 | Reverse thrust arrangement for small watercraft A jet propulsion unit for a small watercraft including a reverse thrust arrangement. The reverse thrust arrangement includes a water diverter bucket assembly moveable between an open position and a closed position with respect to a steering nozzle of the ... | 01/13/2004 |
| 6558209 | Boat auxiliary drive mechanism A boat drive system includes a transmission unit, a propeller shaft, and an auxiliary drive unit for driving the propeller shaft in the event of a failure of the main engine and/or the transmission unit. The auxiliary drive unit includes a housing slidabl... | 05/06/2003 |
| 6378681 | Clutch In a clutch for coupling two shaft sections (2a, 2b) of a drive shaft, in which the shaft sections (2a, b) support an inner clutch ring (8) and an outer clutch ring (9) coplanar thereto and in which the clutch rings (8, 9) are provided with notches (19) w... | 04/30/2002 |
| 6033271 | Ship drive with a driving engine and a directly driven propeller shaft A ship propulsion system in which the ship's propeller is connected with its propeller shaft directly to a drive mechanism. A thrust bearing in the drive mechanism receives directly the thrust of the propeller shaft. An auxiliary drive with an electrical ... | 03/07/2000 |
| 5618211 | Apparatus for and a method of controlling the speed of a ship A method and apparatus for controlling the speed of a ship optimizing the configuration of its drive system, e.g., including its engine, geartrain, brake, clutch and screw.... | 04/08/1997 |
| 5453035 | Apparatus and method of remotely retrieving a radio-controlled model An apparatus and method of retrieving a radio-controlled fuel-powered model boat is disclosed. The apparatus includes a pivot arm, with a pinion gear and an idler gear, that is attached to the shaft of a secondary motor. The idler gear in said pivot arm e... | 09/26/1995 |
| 4871332 | Naval propulsion plant with hydraulic transmission A naval propulsion plant that provides a pair of heat engines MT1 and MT2 that drive two independent pumps P1 and P2. In turn these pumps drive two hydraulic motors MR1 and MR2 with which two propellers E1 and E2 are solid in rotation. A suitable distribu... | 10/03/1989 |
| 4595371 | Power take-off system for marine engines The present invention relates to a new type of marine power take-off system which increases the performance of the V-hull type boat, while not increasing the engine compartment space. The present invention enables the boat manufacturer to mount the engine... | 06/17/1986 |
| 4568289 | Marine transmission gear unit with double drive A marine transmission gear unit with double drive where two driving engines are arranged offset from and on one side of and parallel to a propeller shaft axis and on opposite sides of gear train assembly including a common pinion gear and a greater wheel ... | 02/04/1986 |
| 4403968 | Marine transmission gear unit with double drive A marine transmission gear unit with double drive where two driving engines are arranged offset from and on one side of and parallel to a propeller shaft axis and on opposite sides of gear train assembly including a common pinion gear and a greater wheel ... | 09/13/1983 |
| 4368048 | Ship S drive system A propulsion and drive system for a ship includes an engine, a drive train with transmission gear and main clutch, and a propeller shaft. An auxiliary equipment shaft is connected to that drive train via two branches, geared to the drive on opposite sides... | 01/11/1983 |
| 4358280 | Device for rotationally driving and steering a screw-rudder of a floating vehicle The screw of a screw-rudder propulsion assembly for a floating vehicle is suspended on the end of a steering shaft which is housed in a tubular casing which is supported on the vehicle. The shaft is rotated to steer the vehicle and the screw is driven by ... | 11/09/1982 |
| 4309914 | Controlled transmission system A ship drive system with main engine, main transmission and propeller shaft is supplemented by a transmission branch permitting power transmission in both directions. The branch includes an auxiliary engine, an a.c. generator selectively connected to that... | 01/12/1982 |
| 4290270 | Marine propulsion unit A marine propulsion unit which includes a propeller selectively coupled directly or by way of gear systems at least to two diesel engines with the propulsion unit being adapted to be operated, in a medium speed range of the ship, with only less than all o... | 09/22/1981 |
| 4273543 | Emergency marine propulsion using existing propeller shaft The present invention pertains to an emergency propulsion system for both motor powered and sailing vessels which have a single propeller shaft. This emergency system may be used with inboard engines or with a sailing vessel that has a small engine used f... | 06/16/1981 |
| 4114555 | Apparatus for and method of interconnecting and controlling units of a power train for maximum flexibility and economy in operating auxilliary marine vessels A plurality of diesel motor AC generator units, or power producing units, connected in parallel to provide a AC power pool that is rectified and voltage controlled by a plurality of silicon control rectifiers, or power control units, for activating any of... | 09/19/1978 |
