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5220878 |
Hull for sailing ship
A hull for sailing ship makes it possible to sail mostly by sail and by engine when necessity arises. An auxiliary propulsion engine is installed within a ballast portion protruding downward from...
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5215025 |
Boat
The invention provides for a versatile boat which is highly stable and maneuverable in a variety of water conditions. The boat is substantially symmetrical about a longitudinal, vertical plane and...
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5163379 |
Deployment of mines and other objects at sea
An object deployment unit for use under various sea states which allows deployment of objects (1) in any required sequence the deployment unit comprising a flexible tube shaped elongate body, means...
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5163377 |
Sailing yacht
High performance sailing yacht designs are disclosed based on a keelless sailing yacht concept having fore and aft cambered foils for leeway control which foils replace the function of the standard...
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5060591 |
Sailboat
The sailboat is provided with an outwardly projecting outrigger which is built like a container and is buoyant. Valve controlled openings are constructed in the outrigger below the water line so a...
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5050517 |
Small sized jet propulsion boat
A small watercraft of the jet propelled type having a pair of removable side containers adapted to be mounted on the sides of the hull so as to provide storage area and increased buoyancy. The...
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5030363 |
Oil retriever with interchangeable collection tanks and method of use therefor
An oil retriever for recovering heavy oil, including bunker c, from a body of water is a self-contained unit that is maneuverable independently of land. The retriever has two pontoons that are...
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5026008 |
Fluid-loop reaction system
An improved fluid actuating system for imparting motion to a body such as a spacecraft is disclosed. The fluid actuating system consists of a fluid mass that may be controllably accelerated through...
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5012756 |
Floating construction
A floating structure (11) with completely or partially submersible pontoons that provide the buoyancy for an offshore drilling platform, with a deck that is located on columns (13) attached to the...
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4982681 |
Floating marine structure of thin disc form
A disc-shaped marine structure fabricated of steel and/or concrete, able to support useful loads as great as 125,000 tonnes, is tethered to float stably in very deep water, with only minor response...
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4972788 |
Aquatic vehicle
In an aquatic vehicle with one or more hulls, a chamber (10) is formed in the boat or hull (19, 7). The chamber has at least one opening (13) which can be closed via a closing element (14) and at...
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4964437 |
Apparatus and method for control of oil leakage from damaged tanker
Outflow of oil from a damaged tanker of "segregated ballast" type having some tanks dedicated for carriage of oil and others for water ballast is minimized by transferring oil out of the upper part...
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4942722 |
Plant harvester
A harvester for plants and weeds, particularly aquatic plants, pulls the plants by winding them onto a rotating, endless cable. Tension in the cable is controlled, and an operative portion of the...
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4942839 |
Stabilized and foldable safety inflatable boat
A stabilized and foldable safety inflatable boat formed of a synthetic rubber or a plastic material is provided. The housing of the boat being comprised of an upper air holding portion and a lower...
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4919067 |
Self-righting monohull vessel
A planing type self-righting boat having rigid pontoons forming its perimeter structure independent of interior inflation and which, during the vessel's normal operation, protect conventional or...
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4898288 |
Semi-submersible crane vessel
A semi-submersible crane vessel has a chamber (3) which is open to the sea at the bottom. A piston (4) is movable up and down in the chamber by means of hydraulic jacks (5 and 6) acting on piston...
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4890569 |
Life raft
A self-bailing stabilized life raft includes a bailing chamber located between a stabilization chamber and a flotation platform. Water received from a flexible floor of the flotation platform is...
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4884522 |
Tank stabilizer
A passive tank stabilizer is mounted on a watergoing vessel in the athwartship direction for counteracting the roll of the vessel so that the vessel can be stabilized. The passive tank stabilizer...
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4867721 |
Water ski
A water ski including a buoyant fore section and an elongated hollow, fluid aft chamber in fluid communication with rear ports in the rear end of the ski and air ports in the top surface of the...
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4864958 |
Swap type floating platforms
A system for stabilizing floating semi-submersible platforms and compensating ship motion of monohull ships is based on a design protecting waterplane from vertical movement during wave actions....
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4864957 |
Apparatus and method for launch and recovery of watercraft onto and from the deck of a host vessel
Apparatus for recovery and launch of secondary watercraft such as SALM bases, barges and the like onto and from the deck of a host ship, comprising a pair of elongated inclined skid beam assemblies...
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4843993 |
Ship having a stern screw and a method of operating the ship
The hull has a draught at the rear end, corresponding to the normal position of the ship for deep-water operation, greater than the draught of the front end, the keel line thereof descending...
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4836120 |
Self-righting waterborne craft
Disclosed is a system for displacing the center of buoyancy from the center of gravity in a capsized craft and maintain the displacement until the craft is substantially re-righted. Buoyancy is...
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4829928 |
Ocean platform
An ocean platform has a negatively buoyant pontoon suspended from the balance of the platform to increase the heave resonant period to at least 25 seconds. Tendons suspend the pontoon to a depth...
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4825799 |
Floating duck blind
A foldable sink box consisting of a rigid plasticized hull and a buoyant platform having a large central aperture for engagement by the rigid hull in assembled condition. The hull defines a...
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H000611 |
Semi-submersible vessel
A semi-submersible vessel is disclosed in which a side wall which is continuous in the horizontal direction connects an underwater buoyant pontoon hull to an operating deck located above the water...
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4759307 |
Tanker ballast
In order to reduce the economic impact of segregated ballast requirements for tanker vessels, heavy ballast, for example concrete, is placed in the segregated ballast tanks in amount to occupy 30...
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4753185 |
Floating vessels
A vessel includes two or more barge form hulls disposed apart vertically one above the other and multiple spaced connecting structural members rigidly inter-connecting the hulls with a gap...
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4726316 |
Floating storage building
A plurality of modules (66) are connected together to define a multi-story annular building (10) of honeycomb cells (C). The cells (C) of the building are hexagonal in cross section and taper...
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4715309 |
Device for the handling of liquids
A ballast arrangement includes a number of tanks and a pump connected to a sea-chest and having a discharge conduit extending to a level above the top-most tank. A distribution conduit extends to...
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RE32560 |
Stabilized survival raft
A stabilized life raft utilizing a fluid filled depending buoy chamber for overall stabilization and including as improved features thereon a peripheral skirt chamber which fills with the raft...
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4710060 |
Water vessels of the floating-deck type
A water vessel of the floating-dock type is provided with an arrangement for adapting the vessel for seismic or similar research. A platform is mounted above the cargo deck and extends between the...
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4700648 |
Propelled pontoon chair
A recreational and therapeutic propelled pontoon chair. The invention fundamentally comprises a pair of pontoons in fixed spaced relationship with each other. A chair for maintaining a user is...
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4700650 |
Boat with apparatus for returning to upright condition
This disclosure relates to an arrangement for returning a small boat from an overturned position to a normal upright position. The boat comprises a substantially enclosed room and a partition...
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4697458 |
Crane load-test gauge
The crane load-test gauge of the instant invention includes an elongate vessel having multiple fluid containing compartments therein. Each compartment has an open top side. A fluid carrying...
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4697536 |
Underwater cleaning apparatus
Vessels and the like require cleaning either periodically or whenever a need arises to remove various living things such as seaweeds and shells or contaminants such as oil for the sake of...
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4692124 |
Sail raft - convertible inflatable life raft
The self-inflating convertible life raft may be launched from a distressed ship or a downed aircraft. Suspended from the sides of the hull are uniquely positioned anti-capsize water ballast bags...
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4683829 |
Small self-righting water craft
This disclosure relates to an arrangement for self-righting a water craft, such as water craft from an overturned position to a normal upright position. The craft comprises a substantially enclosed...
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4651666 |
Multi-hull sailboat righter
The invention is a water lifter for use on knocked down multi-hull sailboats. The water lifter comprises a water bucket attached to one or more bucket lines which in turn are attached to one or...
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4648342 |
Arrangement in vessels
A vessel with a ballast system including a plurality of ballast tanks provided with means for feeding water into the tanks and expelling water therefrom and an air bubbling system including...
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4615289 |
Floating dry dock
A dry dock having flotation chambers on two opposite sides of the load-carrying platform is submerged by flooding the flotation chambers. A reversible air pump is used to raise the dry dock by...
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4602587 |
Float structure
A float structure includes a flotation portion, a frame portion, a shell portion and a connector portion. The flotation portion includes a unitary porous slab member having a generally quadrangular...
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4582014 |
Vessel having stabilizing system
A vessel, for example a semi-submersible is provided with at least a chamber for stabilizing it against any or all of heave, roll and pitch. The chambers are mounted on or in the vessel and...
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4565145 |
Marine observatory craft
A marine observatory craft for viewing of underwater locations includes a plurality of planing type hulls with viewing ports associated with each hull. There is also provided a plurality of...
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4561370 |
Recreational watercraft
A recreational watercraft having a housing and a structure disposed within the housing for supporting a person. The housing is adapted to be moved through the water by being towed or in other ways....
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4550751 |
Ballast exhaust pipe closing appliance for a ship
A ballast exhaust pipe closing appliance for a ship is so designed that a closing stopper comprising an inflatable bag body is inserted in a ballast exhaust pipe. By supplying compressed air in the...
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4548148 |
Glass bottom boat
A catamaran boat is provided including a pair of laterally spaced apart longitudinally extending displacement-type hollow hulls. Generally horizontal connecting deck structure extends between the...
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4549267 |
Moment stability system for large vessels
An improved computerized moment stability system is provided which will rapidly obtain the solution to operational and post damage stability problems which may be present on an oceangoing vessel....
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4541356 |
Multihull vessel with capsize prevention means
A capsize prevention device for a multihull vessel which may be mounted to an existing vessel or be integrally manufactured therewith. The device includes first and second tubes disposed...
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4538538 |
Stabilizing apparatus for a craft
A craft having a stabilizing device including a triangular, substantially flat, base floor having a bottom on which the craft floats when at rest and forming the top of the stabilizing device, and...
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