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7371135 |
Vertical axis wind turbine rotor construction
A Savonius vertical axis wind turbine (VAWT) rotor is easily and simply constructed while having enhanced functionality. The rotor includes a shaft that is vertical in use, a number (desirably at...
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7001227 |
Personal floatation and rescue device
The present invention is a device to be used in emergency situations requiring floatation and rescue. An inflatable raft with a waterproof cover is connected to a telescopic shaft equipped with...
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6902447 |
Rotary wind-powered propulsion system for boats
A propulsion drive system for boats that is operated by wind power is disclosed. Upon initial observation of a boat equipped with the invention, it looks like a conventional boat. However, after...
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6688925 |
Wind and water motor
This is a totally new way to harness the power of wind and running water as in rivers and ocean currents. It consist mainly of two supporting wheels mounted permanently on a main shaft. Between...
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6497593 |
Wind-powered vehicle
A wind-powered vehicle having a longitudinal axis and being capable of traveling in the direction thereof across a generally horizontal and generally dense medium such as water, ice or land. The...
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6293835 |
System for providing wind propulsion of a marine vessel using a helical turbine assembly
A helical turbine assembly capable of providing high speed unidirectional rotation under a multidirectional ultra low-head fluid flow is disclosed. The assembly comprises an array of helical...
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6261138 |
Wind-driven vessel
A vessel comprising a windmill mechanism having a variable pitch propeller, a generator rotatably driven by the windmill mechanism, a storage battery for storing current generated by the generator,...
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6237521 |
Sailcloth arrangement for sails of water-going vessels
A sailcloth arrangement for a sail of a water-going vessel has a sailcloth base and flexible solar cells attached to the sailcloth base. The flexible solar cells have a flexibility matching the...
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6192821 |
Boat mounted hydro-alternator
A hydro-alternator for attachment to the outboard motor on a bass fishing boat. The hydro-alternator generates electrical power for charging of batteries on the boat. The alternator charges the...
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5971820 |
Parallel fluid flow wind and water mills
A parallel fluid flow wind or water mill having one or more pair of vanes fixed around a central mass. The vanes showing in cross section a non-aerodynamic face having a plane or concave surface,...
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5724906 |
Wind resistance reducing structure of a ship
A wind resistance reducing structure including a wind tunnel made longitudinally through a navigating bridge superstructure of a ship for example a tanker or bulk freighter, and two gates...
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4775340 |
Freely-floating wind power plant
This invention concerns a wind power plant and/or wind motor-driven craft, consisting of a frame floating on a water surface and upon which has been mounted a tower with a wind-driven generator,...
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4522600 |
Wind propulsion for all types of vehicles and stationary machines
There is provided a wind propulsion device for driving a transmission shaft connected through intermediate members with devices for force transmission. The wind propulsion device comprises a wind...
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4497631 |
Wind-powered water-craft
A wind-powered water-craft including a seaworthy base which may either be a conventional dinghy or a specially-designed flat-bottomed hull, similar in shape to a dinghy. A cabin is supported in and...
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4419587 |
Output power modulated wind responsive apparatus
A wind responsive power generating apparatus (20) comprises a pair of normally mutually orthagonal cross arms (22,24) carrying impeller members (22a,22b, 24a,24b) that apply torque to a load (38)...
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4418880 |
Fluid flow augmentor
There is described a fluid flow concentrating device suitable, for example, for concentrating the flow of tidal waters or of wind, which comprises a hollow body closed at one end and open at the...
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4398895 |
Wind propulsion devices
Wind-assisted power elements comprising paired rotors of which each rotor is independently rotated at a peripheral speed of about 2 to 4 times that of the wind, and the rotors are mounted in tandem...
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4371346 |
System for propulsion of boats by means of winds and streams and for recovery of energy
The invention relates to an improved system for propulsion of boats by winds and streams and for recovery of disposable energy from floating stations neither moored nor anchored, the improved...
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4353702 |
Sailing craft mainsail and auxiliary propulsion means therefor
A configuration for a sailboat mainsail comprises a rotating wind-mill like sail structure mounted on a rotating pedestal base. The wind driven rotating sail delivers power to the sailboat...
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4324985 |
Portable wind turbine for charging batteries
In a wind turbine assembly incorporating a diffuser, the diffuser includes an articulated duct formed of a set of members, such as the sectors of a conic section, which are pivotable about axes in...
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4286538 |
Multipurpose floating structure
A multipurpose floating structure comprises a large number of flotation units joined together in a regular reticulated pattern in one or more horizontal tiers, each flotation unit comprising: a...
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4276033 |
Sailing system
A sail mounting frame extends upwardly from the hull of a boat and is constructed of a lower section and an upper section which rotate relative to each other about a first axis of rotation which...
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4274011 |
Wind turbine for marine propulsion
A wind turbine on an essentially vertical mast converting wind power to electric power for the propulsion motors of a screw propelled ship. The turbine is omnidirectional and capable of being...
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4180882 |
Lifesaving air boat
A life boat adapted to be thrown out into a body of water from a mother boat for automatically forming a lifesaving air boat as a result of being thrown onto the water. The lifeboat structure...
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4149092 |
System for converting the randomly variable energy of a natural fluid
Emitters and rotary hydraulic displacement pumps are associated with one or a number of propeller-type transducers and connected to receivers each having a rotary hydraulic displacement motor...
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4141425 |
Means for generating electrical energy for vehicle
Apparatus for generating electrical energy useful for powering of the electrical apparatuses associated with the operations of a vehicle, boat, residence, or other structure, including a bank of...
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4061105 |
Sail to row
This invention pertains to power for a boat, comprising a vertically mounted rotary sail device generally amidship of the boat, a power transmission driven by the sail device, pulley directed...
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4048947 |
Rotary device driven by a moving fluid
A rotary device driven by a moving fluid, such as water or air, for generating a rotary movement comprises a cylindrical or frusto-conical rotor having a vertical axis, the rotor having a plurality...
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4047833 |
Horizontal windmill
A horizontal windmill includes a vertical tubular internal baffle member, a plurality of vanes responsive to the wind, mounted and positioned so that they revolve horizontally when the wind blows,...
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3964426 |
Wind driven mechanical drive
A mechanical drive actuated by wind has propellers rotatably mounted on a vertical standard which is rotatably fastened to the deck of a ship. The rotational force of the propellers is transmitted...
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3468281 |
SHIP PROPULSION INCLUDING INTERNAL PADDLE WHEEL
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3212470 |
Outboard rotary sail
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