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Matches 101 - 150 out of 350 < 1 2 3 4 5 6 7 >


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5477797 Watercraft hull modification  
A method of constructing or, modifying a watercraft (10) comprises the step of fitting to a main hull (14) of the watercraft an outer hull structure (15) which includes or which forms an outer hull...
5468167 Life raft utility tether  
A utility tether for a life raft, includes a tether having a plurality of links for securing a person to the tether. The tether is stored outside the canister of the inflatable raft to be...
5363788 Floating oil rig with controllable heave  
Controlled-heave floating oil platform comprising a deck and a floatation assembly. According to the invention, in order to control platform response to sea movement, the floating assembly...
5335615 Tanker vessel  
The present invention relates to a tanker vessel for the transportation of oil or other liquids, which present a danger to the environment: the tanker vessel consists of a hull with a bottom (10),...
5331914 Highly stable one-man boat  
The boat has a circular hull which rotatably supports an overlying deck and its attached pedestal seat for rotation about an upright axis concentric with the center axis of the hull. For steering...
5325804 Fuel-efficient watercraft with improved speed, stability, and safety characteristics  
A watercraft mounted on submarine hulls is taught which is capable of moving faster than a displacement vessel of the same length, while consuming equal or less fuel than would such a displacement...
5320056 Recessed bottom tanker  
Recessed bottom tankers. Vessels described herein are built or retrofitted with side ballast tanks and optional forward bulbs extending to a level below the level of the vessel's cargo compartment...
5309857 Apparatus for transferring buoyancy in a nautical vessel  
An apparatus is provided for reducing the extent of heel of a nautical vessel by applying a buoyant righting moment on the leeward side of a hull of the vessel. Supports are coupled to and extend...
5305561 Inflatable housing structure  
A floating inflatable structure is used to house a vessel for repair while it is afloat. The structure has inflatable walls containing water ballast. The height of the structure above the water can...
5275118 Ballast tank elements for a double hull vessel  
A double hull vessel is disclosed having a novel type of ballast tank element. That ballast tank element has a half-breadth double-bottom ballast tank and a side ballast tank. The half-breadth...
5237947 Variable draft hull  
A hull for a water-borne vessel includes submersible variable displacement ods attached to a main hull of the vessel through pivotable arms which allow positioning of the submersible pods at...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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....
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
Matches 101 - 150 out of 350 < 1 2 3 4 5 6 7 >