Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8007328 | Self-contained hydraulic thruster for vessel A self-contained hydraulic thruster for vessel. A power pack is mounted on a forward end of a base, and a helm platform is mounted on an aft end of the base at a substantial height above the base. A reservoir in communication with the power pack is mounted on the he... | 08/30/2011 |
| 7985108 | Modular diesel hydraulic thurster system for dynamically positioning semi submersibles A removable retractable externally mountable dynamic positioning self contained diesel hydraulic thruster system for a floating semi-submersible vessel having a hull with a ballasted waterline, a first pontoon integral with the hull and a second pontoon integral wit... | 07/26/2011 |
| 7942710 | Amphibious all-terrain vehicle An amphibious, all-terrain vehicle utilizing a pair of hydrostatic pumps to independently provide power to hydraulic drive mechanisms of the left and right side of the vehicle respectively. The hydraulic drive mechanisms on a side of the vehicle comprise a plurality... | 05/17/2011 |
| 7896716 | Hydraulic saildrive apparatus The subject invention provides a hydraulic saildrive apparatus comprising an upper unit 103 having an input shaft 1 connected to an engine 102 inside a boat, and a lower unit 104 having an output shaft 4 including a propeller shaft... | 03/01/2011 |
| 7883384 | Self-contained hydraulic thruster for vessel A self-contained hydraulic thruster for vessel. The hydraulic thruster incorporates a lower unit housing tiltably attached to a lower unit mounting tube attached to a base, a tube whose upper end is attached through the lower unit housing, and a shaft slidably dispo... | 02/08/2011 |
| 7654875 | Self-contained hydraulic thruster for vessel A self-contained hydraulic thruster for vessel. The hydraulic thruster incorporates an elevated helm platform mounted to a base having reinforced base feet, and a hydraulic fluid reservoir mounted on the helm platform. The elevation of the hydraulic fluid reservoir ... | 02/02/2010 |
| 7357687 | Marine propulsion steering system A marine propulsion steering apparatus includes a steering nozzle having a central opening therethrough which surrounds a marine propulsion drive shaft and propeller extending from a hull or propulsion module. The nozzle is pivotally mounted for angular movement in ... | 04/15/2008 |
| 7316194 | Rudders for high-speed ships A high-speed water vessel including a steering arrangement for reducing cavitation and its effects. The arrangement includes a twisted rudder pair located downstream of a high-speed propulsor. The rudder pair may also be contoured at a bottom portion thereof. The pr... | 01/08/2008 |
| 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 |
| 7226324 | Waterjet with internal drive motor A marine waterjet propulsion system having an impeller with an impeller hub, a diffusor with a diffusor hub, and a motor driving the impeller, the motor being placed inside at least one of said impeller and diffusor hubs. In one preferred embodiment of the propulsio... | 06/05/2007 |
| 7191061 | Auto-steering apparatus and method A vehicular guidance method involves providing a user interface using which data can be input to establish a contour for a vehicle to follow, the user interface further configured to receive information from a differential global positioning system (DGPS), determini... | 03/13/2007 |
| 7168997 | Boat propulsion system A boat propulsion system interposed between a prime mover and a propeller shaft comprises a hydro-mechanical transmission including a hydrostatic transmission part and a gear transmission part. The hydrostatic transmission part includes a variable displacement hydra... | 01/30/2007 |
| 7162763 | Turbine drive apparatus and method suited for suction powered swimming pool cleaner A method and apparatus for enabling a pool cleaner (60) to travel through a water pool to collect dirt and other debris from the water and/or pool containment wall (88). The cleaner (60) defines a suction passageway having an inlet (74) o... | 01/16/2007 |
| 7156054 | Horse walker/animal conditioning system An animal walker or conditioning system. The preferred embodiment of the present invention contemplates a horse walker or conditioner incorporating a direct drive hydraulic motor, the motor configured to provide a powered bearing surface to support and axially rotat... | 01/02/2007 |
| 7146921 | Rotationally retractable propeller A retractable thruster for a surface or submersible vessel, having thruster a propulsion assembly with a rigid structure secured to a cylindrical turbine. The rigid structure contains a motor suitable for rotating at lease one propeller inside the turbine via at lea... | 12/12/2006 |
| 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 |
| 7128175 | Multi-terrain amphibious vehicle A multi-terrain amphibious vehicle for travel across various types of surfaces and upon various bodies of water. The vehicle has an elongated longitudinally extending chassis having a bottom surface having a centerline. A plurality of left side propulsion units and ... | 10/31/2006 |
| 7055447 | Dynamic positioning and motion control during cargo transfer operations A system and method providing a portable, floatable vessel for controlling the absolute position and relative position and the motion of a floating craft using a small water plane area, high vertical drag coefficient and dynamic positioning is disclosed. The methodo... | 06/06/2006 |
| 7040939 | Water intake and transmission system A water intake and transmission system for simultaneously driving dual jet units of a jet boat. According to a preferred embodiment, the water intake includes dual channels to allow the uptake of dedicated streams of water. Mounted to the intake is a housing having ... | 05/09/2006 |
| 7011274 | Aircraft The invention concerns a land and flying vehicle with its tubular frame, 2 main rotors with blades and adjustable pitch-propellers, with its drive propelled by the force of a hydraulic turbine located at the end of its driving shaft. Said force is propelled by a ver... | 03/14/2006 |
| 6988917 | Boat propulsion system A boat propulsion system interposed between a prime mover and a propeller shaft comprises a hydro-mechanical transmission including a hydrostatic transmission part and a gear transmission part. The hydrostatic transmission part includes a variable displacement hydra... | 01/24/2006 |
| 6799528 | Portable dynamic positioning system with self-contained diesel hydraulic thrusters The integrated and self contained diesel hydraulic thruster system integral has a dynamic positioning control system for dynamic positioning of any waterborne vessel having a hull with at least two sides and a deck connecting the sides, at least two removably mounte... | 10/05/2004 |
| 6655309 | Apparatus for maneuvering boats An apparatus for aiding in steering and maneuvering a boat that includes a thruster that applies a force transverse to the longitudinal axis of the boat. The operation of the thruster is under control of a remote radio frequency transmitter which permits ... | 12/02/2003 |
| 6547610 | Parallel-operated hydraulic motor type stern propulsion apparatus for boats and hydraulic system for controlling the same Disclosed herewith is a parallel-operated motor type stern propulsion apparatus for boats and hydraulic system. The stern propulsion apparatus includes a transom box disposed at the stern of a boat. A propulsion body situated in the transom body to be lif... | 04/15/2003 |
| 6099367 | Hydrostatic propulsion system for a marine vessel A hydrostatic marine propulsion system is provided with a valve that is able to bypass an infinitely variable amount of hydraulic fluid from a hydrostatic pump to bypass a hydrostatic motor which is used to drive a propeller shaft. The infinitely variable... | 08/08/2000 |
| 5993273 | Amphibious all terrain vehicle An improved amphibious all terrain vehicle having a subtantially rectangular body or shell and is constructed of a light-weight durable metallic material. A combustion gas engine is coupled to a dual hydraulic pump system which is centrally mounted within... | 11/30/1999 |
| 5879207 | Single engine dual propeller water craft A water craft having a single engine and at least one pump that together cause two propellers to rotate independently. The pump pumps fluid to two valves: a first valve that controls a first propeller and a second valve that controls a second propeller. B... | 03/09/1999 |
| 5813887 | Marine propulsion system In prior stern drive marine propulsion systems, power is transmitted through an arrangement of clutches, bevel gears and shafts to the propeller located below the water surface. This restricts the amount of torque which can be transmitted particularly for... | 09/29/1998 |
| 5722864 | Marine propulsion system A marine propulsion system comprised of a housing unit having forward and rearward openings, a rotational unit, having forward and rearward openings and having an inner and outer periphery, rotatably secured in the housing unit such that the forward and r... | 03/03/1998 |
| 5688151 | Collapsible boat powered by a land vehicle A trailer/boat is provided which is capable of being towed behind a recreation vehicle or the like, and then prepared without special equipment and launched in a manner capable of receiving the towing vehicle as cargo on the boat. The boat then may be pow... | 11/18/1997 |
| 5634419 | Front-drive boat A watercraft having its propulsion machinery near the bow. The hull of the craft has a single, tapered bow section, with a drive pod under the center of the bow. The bow section is tapered up into the hull aft of the middle of the craft, while the sides o... | 06/03/1997 |
| 5607330 | Collapsible boat powered by a land vehicle A trailer/boat is provided which is capable of being towed behind a recreation vehicle or the like, and then prepared without special equipment and launched in a manner capable of receiving the towing vehicle as cargo on the boat. The boat then may be pow... | 03/04/1997 |
| 5476400 | Hydraulic power system for a boat An hydraulic power system for a boat comprising a marine thruster assembly. A structure is for mounting the marine thruster assembly to an exterior surface of a transom on the boat. A first hydraulic operative facility is for propelling the marine thruste... | 12/19/1995 |
| 5417063 | Underwater hydraulic system for reducing pump noise A hydraulic system which includes a pump for supplying hydraulic fluid to a load and receiving hydraulic fluid therefrom wherein the pump is acoustically isolated from the surrounding water medium. The pump and a motor which drives the pump is enclosed in... | 05/23/1995 |
| 5392871 | Amphibious vehicle and control An amphibious vehicle having a hull and pair of multiple-flighted outriggers which coact to stabilize and propel the vehicle over land and water. The speed and direction of the vehicle is controlled by a joystick allowing an operator to move the craft ove... | 02/28/1995 |
| 5383801 | Hollow jet thruster device A device for producing thrust from a flow of accelerated fluid, including: a fluid accelerator (1) fitted with drive vanes (5) and rotated inside a stator (10) about an axis of revolution; a circularly symmetrical stationary web portion (7) centered on th... | 01/24/1995 |
| 5203274 | Amphibious vehicle A buoyant boat hull of an amphibious vehicle has concave, quarter cylinder recesses along the sides down from the waterline, such recesses receiving the upper inboard quadrants of helical augers. The recesses confine water between the screw threads and pr... | 04/20/1993 |
| 5193475 | Thrust expansion engine Break-up activity of water by injection of hot propellant gas into channels f a thrust expansion engine is suppressed to prevent rapid cooling of the gas, utilizing one or more methods including injection of a secondary inflow of the propellant gas and/or ... | 03/16/1993 |
| 5181478 | Amphibious vehicle with retractable wheels An amphibious vehicle with retractable wheels that revolves through the sides of hull between a retracted position inside an enclosure and a ground engaging position. The vehicle has three wheels on each side or a set of caterpillar tracks. A hatch panel ... | 01/26/1993 |
| 5022987 | Apparatus and method for separating and removal of floating pollutants from a water surface A skimmer craft for removal of a layer of oil or other floating pollutants from the surface of a body of water including a pair of spaced-apart pontoons with a horizontal floor plate extending between the pontoons. A sump box is positioned at the rear of ... | 06/11/1991 |
