Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 8047884 | Propulsion system A propulsion system may include a cylindrical support member and a tubular rotatable member rotatably mounted within the support member that may be adapted to permit fluid flow therethrough. The tubular rotatable member may extend past a down stream end of the suppo... | 11/01/2011 |
| 7950974 | Weed cutter for a craft propelled by a water jet A device for cutting weeds carried by water inducted into a housing includes an intake, an outlet, an impeller for pumping water from the intake to the outlet as the impeller rotates about an axis, the impeller including a blade formed with a leading edge facing the... | 05/31/2011 |
| 7845995 | Pod propulsion system with rim-mounted bearings A pod propulsion system comprises a housing defining a fluid duct and an annular drum rotatably mounted to the housing within the fluid duct. The annular drum has a drum interior and a cylindrical outer surface. The system further comprises a rotor mounted to the dr... | 12/07/2010 |
| 7845996 | Jet pump tail cone insert The present disclosure relates to a jet pump tail cone insert for a jet pump. The jet pump tail cone insert comprises a cap, a body and an end member. The end member has a plurality of projections configured to matingly receive a plurality of forks of the body. When... | 12/07/2010 |
| 7837523 | Water-jet pump, impeller for the same, and boat including the same A water-jet pump includes a cylindrical housing and an impeller. The impeller is disposed in the cylindrical housing and is configured to be rotated in a rotating direction. The impeller includes a shaft body and plural blades. The plural blades are provided on an o... | 11/23/2010 |
| 7824237 | Impeller drive for a water jet propulsion unit A water propulsion unit having an intake housing, a pump housing and an outlet with two spaced apart counter rotating impellers being located in the pump housing. The impeller blades on one impeller have an opposite pitch to the blades of the second impeller. The im... | 11/02/2010 |
| 7803025 | System for mounting a marine jet propulsion system A watercraft has a hull and a deck disposed above the hull. A ride plate is mounted below a rear portion of the hull. A jet pump assembly includes a jet pump disposed at least in part between the ride plate and the hull. A front wall is formed at least in part by th... | 09/28/2010 |
| 7785162 | System and related methods for marine transportation A system and related methods for manned and/or unmanned marine transportation involving equipping a vessel capable with a linear pump for propelling the vessel through or substantially over a body of water. ... | 08/31/2010 |
| 7524220 | Water jet propeller To provide a water jet propeller that enables an efficient flow of water from a water flow duct to an impeller housing even if an inner periphery of the impeller housing has an inside diameter smaller than the inside diameter of a rear end portion of the water flow ... | 04/28/2009 |
| 7507128 | Power system for watercraft Personal watercraft systems and watercraft power systems are described. The personal watercraft power systems include a housing for supporting a water jet pump and engine system. The housing is constructed to support the power system and removably engage a watercraf... | 03/24/2009 |
| 7476134 | Jet powered steering system for small boat outboard motors A directional nozzle for the jet output that is attached to a control cable system. This cable turns the directional nozzle, which causes the trust of the jet output to turn the boat. Thus, the boat can be steered without having to turn the entire motor. Two differe... | 01/13/2009 |
| 7448926 | Impeller drive for a water jet propulsion unit A water propulsion unit having an intake housing, a pump housing and an outlet with two spaced apart counter rotating impellers being located in the pump housing. The impeller blades on one impeller have an opposite pitch to the blades of the second impeller. The im... | 11/11/2008 |
| 7445531 | System and related methods for marine transportation A system and related methods for manned and/or unmanned marine transportation involving equipping a vessel capable with a linear pump for propelling the vessel through or substantially over a body of water. ... | 11/04/2008 |
| 7445532 | Safe efficient outboard motor assembly An outboard motor assembly for use as external propulsion for a watercraft includes a drive assembly, a shaft assembly, and an impeller-jet assembly coupled to the shaft assembly. The impeller-jet assembly includes an inlet stator, an exit stator, an impeller, and a... | 11/04/2008 |
| 7422498 | Ship with wave engulfing enhanced propulsors Presented is a way to reduce the wave drag of high speed ships by ingesting wave energy into water propulsors disposed at the bow and/or on the sides of the main hull of the ship. A forward secondary bow disposed at a lower portion of the main bow of the ship is an ... | 09/09/2008 |
| 7377826 | Fouling removal system for jet drive water intake A fouling removal system for use in a water-jet drive system is described. The fouling removal system includes a cutter arm assembly and an optional cutter stud. The cutter arm assembly includes a pivotable cutting blade located adjacent to the intake grate and arra... | 05/27/2008 |
| 7364481 | Jet-propelled watercraft A jet-propelled watercraft capable of maintaining a propulsion force required for a turn made at the same time as closing of a throttle valve. The jet-propelled watercraft has an auxiliary intake valve and an ECU. The auxiliary intake valve in an intake pipe opens/c... | 04/29/2008 |
| 7364480 | Engine output control system for water jet propulsion boat A jet-propelled watercraft can include an engine output control system that adjusts the output of the engine based on a steering force and the engine speed. The control system can also be configured to detect abnormalities in the steering force sensor and to prohibi... | 04/29/2008 |
| 7361068 | Seal pressure vent system for a waterjet apparatus A seal pressure vent system for a waterjet propulsion apparatus including a water intake section and a pumping unit. The pumping unit is designed such that in operation the seal pressure vent system provides a fluidic path for the flow of high pressure water away fr... | 04/22/2008 |
| 7357685 | Jet pump tail cone insert The present disclosure relates to a jet pump tail cone insert for a jet pump. The jet pump tail cone insert comprises a cap, a body and an end member. The end member has a plurality of projections configured to matingly receive a plurality of forks of the body. When... | 04/15/2008 |
| 7353764 | Corvette ship-type equipment system A corvette ship-type equipment system includes standard-equipment segments, such as an energy generator, an energy distributor, a drive and an automation segment, and a hull which is adapted to the size and specific requirements on the corvette ship-type equipment s... | 04/08/2008 |
| 7354322 | Watercraft and waterjet propulsion system The present invention relates to a watercraft with an improved waterjet propulsion system. The present invention further relates to a waterjet propulsion system with an improved steering nozzle design. The watercraft preferably is either what is known as a jet ski, ... | 04/08/2008 |
| 7353095 | Diagnostic system for watercraft A diagnostic system is provided for a watercraft that is propelled by an outboard drive. Sensors can detect conditions of components related to at least the operation of the outboard drive. The diagnostic system can leave inside and outside computers. The inside com... | 04/01/2008 |
| 7341039 | Lubrication system for a marine propulsion system with a tilted in-line engine A lubrication system for an in-line engine which has a piston symmetry plane that is tilted relative to a vertical plane is provided with an oil pan and windage tray that facilitates the transfer of oil from a rotating crankshaft to the oil pan without excessive aer... | 03/11/2008 |
| 7341496 | Fast sea-going ship with a double bottom and a waterjet drive The invention relates to a high-speed, sea-going ship comprising a double hull and a water-jet drive, the latter consisting of at least one pump assembly for generating the water-jet and at least one drive motor for the pump assembly. According to the invention, the... | 03/11/2008 |
| 7335075 | Outboard motor with cowling An outboard motor includes an engine. A cowling body defines an internal cavity in which the engine is enclosed. A partition member divides the internal cavity into a first cavity and a second cavity. The first cavity communicates with outside through a first openin... | 02/26/2008 |
| 7334501 | Gear case assembly with pressure-compensating function for marine propulsion machine A gear case forming a lower part of a marine propulsion machine is provided with a gear chamber for housing a bevel gear mechanism, used for transmitting power from a drive shaft to a propeller shaft. The gear chamber is connected to the bottom of a vertical drive s... | 02/26/2008 |
| 7329160 | Motorized watercraft A motorized watercraft with a hull of the craft on which a user lies prone, at least partially, or stands up, with a flow channel extending in the hull of the craft with an electric motor-driven water screw. The electric motor and the batteries, as well as the contr... | 02/12/2008 |
| 7318759 | Preload system for bearings in a waterjet propulsion apparatus A preload system for bearings in a waterjet propulsion apparatus, the apparatus including a water intake section and a pumping unit including a bearing cartridge. The bearing cartridge is designed such that during operation a preload system provides tailoring betwee... | 01/15/2008 |
| 7311574 | Integrated marine motor support and transmission apparatus An integrated motor support and transmission apparatus for a marine propulsion system having a motor and marine drive with a drive shaft, comprising: an output shaft; a support housing attached to a marine vessel and having an upper end and a lower end, the upper en... | 12/25/2007 |
| 7309265 | Outboard motor steering system In an outboard motor steering system, the engine speed is detected as a value indicative of the speed of the boat and a current value for operating a steering hydraulic cylinder is determined to decrease with decreasing engine speed. The current value can therefore ... | 12/18/2007 |
| 7305928 | Method for positioning a marine vessel A vessel positioning system maneuvers a marine vessel in such a way that the vessel maintains its global position and heading in accordance with a desired position and heading selected by the operator of the marine vessel. When used in conjunction with a joystick, t... | 12/11/2007 |
| 7299783 | Auxiliary control of airflow through an engine enclosure of an outboard motor A marine propulsion device is provided with an air control system that draws air from the region under the cowl of the outboard motor and induces a flow of air out of the region. The air is caused to flow through a second opening formed in the cowl. As a result, air... | 11/27/2007 |
| 7300322 | Outboard motor An outboard motor is equipped with a centrifugal clutch located between the crankshaft of an engine and a rotor of an electric motor for, when the engine operates, transmitting its output to through the rotor to a propeller, and with a motor output transmission mech... | 11/27/2007 |
| 7284495 | Shaftless radial vane rotary device and a marine propulsion system using the device A radial vane fluid motor or pump has an open ended tubular rotor having a cylindrical outer surface rotatably mounted in a tubular stator having its inner surface contoured to provide successive portions of increased and decreased spacing relative to the rotor body... | 10/23/2007 |
| 7270583 | High efficiency watercraft propulsion system A propulsion system for a watercraft includes a concavity formed in a hull of the watercraft. The concavity has a minimum depth at its leading end and a maximum depth at its trailing end. An impeller is mounted in the trailing end of the concavity and a stator trail... | 09/18/2007 |
| 7267589 | System and apparatus for improving safety and thrust from a hydro-drive device A system and apparatus are disclosed for improving safety and hydro-flow thrust from a hydro-drive device. The apparatus may include a shroud having a first opening for the ingress of water, and a second opening for the egress of water, and a vane extending inward f... | 09/11/2007 |
| 7267594 | Jet pump mounting structure of small-sized boat Jet pump mounting structure of a small-sized boat including a front face of a thrust plate attached to a rear face of a front wall of a pump case, and a jet pump attached to a rear face of the thrust plate. The jet pump is arranged in the pump case. The front wall i... | 09/11/2007 |
| 7267068 | Method for maneuvering a marine vessel in response to a manually operable control device A marine vessel is maneuvered by independently rotating first and second marine propulsion devices about their respective steering axes in response to commands received from a manually operable control device, such as a joystick. The marine propulsion devices are al... | 09/11/2007 |
| 7264519 | Safe efficient outboard motor assembly An outboard motor assembly for use as external propulsion for a watercraft includes a drive assembly, a shaft assembly, and a impeller-jet assembly coupled to the shaft assembly. The impeller-jet assembly includes an inlet stator, an exit stator, a impeller, and an ... | 09/04/2007 |
