Matches 1 - 50 out of 166 1 2 3 4 >
Match Document Document Title
7250568 Underwater vehicle deceleration and positive buoyancy assembly  
An assembly for vehicle deceleration and buoyancy comprises a pair of doors enclosing flotation bags inflatable for buoyant recovery of the torpedo. In operation, the doors are controllably forced...
6598550 Emergency buoyancy system for a vessel  
An emergency buoyancy system mounted to a vessel includes a depth sensor to sense a predetermined maximum depth, and an actuator actuated by the depth sensor. The actuator, upon actuation, opens a...
6409431 Submersible floating dock  
A submersible floating dock which can be sunk beneath the water line in the event of the approach of a violent storm for protection of the dock against wave action, storm surge, and high winds. A...
6269761 Buoyancy device  
A buoyancy device is described comprising a number of buoyancy members (9, 9A, 9B) which are substantially equi-spaced around the circumference of a coupling member (7) and the buoyancy members (9,...
5860379 Inflatable floating boat lift  
An inflatable floating boat lift device constructed of a flexible impermeable fabric comprising main air chambers and a network of hoses and valves connected to a blower controlling the inflation...
5666898 Equipment for raising sunken vessels  
Equipment for the raising, sunken vessels, specifically small to medium sized ships which are submerged in depths to which human descent for purposes of rigging retrieval gear to the ship is...
5341756 Storage means for watercraft  
The invention provides a apparatus for and a method of storing watercraft above a body of water for extended periods of time, including periods when the body of water is frozen over. The apparatus...
5286462 Gas generator system for underwater buoyancy  
In a preferred embodiment, a gas generator system for providing underwater buoyancy, including: a housing for the placement therein of a solid chemical to produce a gas upon reaction of the...
5257952 Deployment system for secondary propulsor unit  
A system is provided for deploying a propulsor unit from the hull of a water vehicle, such as a submarine. The system comprises an opening in a submerged portion of the hull that leads to a chamber...
5094181 Emergency float system for water craft  
An emergency buoyancy system for small water craft without built-in flotation which includes an elongate, inflatable container of sausage-like shape having a support harness at each end. Flexible...
5007364 Gas control valves and apparatus for controlling buoyancy in water  
A gas control valve (802) has an inlet needle jet (812) and an outlet (816), the communication between which is controlled by a valve member (808) carried by a rod (807) connected to a diaphragm...
4979451 Under water air lift utility bag  
In a lift device used by divers to bring objects from the bottom to the top of a body of water, this invention eliminates the need for a second bag. This is accomplished by combining the lifting...
4674429 Underwater buoyancy apparatus  
A device for venting gas from an expansible gas chamber (lifejacket, lifting bag, etc.) of an underwater buoyancy apparatus. The device comprises a monitoring device which monitors the rate of...
4658745 Collapsible salvage drum and method  
A salvage apparatus is provided which includes a bellows type drum contai. The container includes a flexible skirt which is generally tubular with top and bottom ends. The container further...
4510878 Volume-adjustable divers lift bag  
In a lift bag used by divers to lift objects from the ocean bottom to the surface, this invention keeps constant the amount of flotation gas and hence the lift force. A hose connects the gas bubble...
4506623 Non-rigid buoyant marine storage vessels for fluids  
A buoyant marine storage vessel for fluids, such as oil, includes a flexible containment bag having at least a controllable inlet and outlet for fluids and a wire rope cage for the bag which is...
4498408 Lifting body for diving  
Lifting body for transporting or lifting objects under water, of the type in which the lifting gas has essentially the same pressure as the surrounding mass of water. The lifting body comprises a...
4495880 Draft assisted delivery system  
A device, a method, and a system for reducing the draft of large vessels to allow the successful navigation of shallow waterways which could not otherwise be traversed due to the depth of the draft...
4433633 Controlled gas generator system  
A controlled gas generator system is provided which has a reaction chamber, he reaction chamber having top and bottom ends. A bed of reactant material is disposed within the chamber intermediate...
4271552 Torpedo floatation device  
A torpedo recovery system including an expandable sleeve surrounding a portion of the torpedo. Upon activation of the recovery system gas is introduced into the sleeve, causing it to expand. The...
4199006 Pneumatic valve  
A pneumatic valve for controlling the inflation of floatation bladders in ver-deployed underwater recovery apparatus comprises, in one embodiment, an inlet connectable to a source of pressurized...
4104425 Power cell driven by a gaseous or liquid pressure medium  
A power cell for lifting masses by inflation of the cell by a gaseous or liquid medium, the cell being hollow and, in the pressure-free state, substantially a single plane. The cell includes two...
4092756 Diver's buoyant caddy  
Diver's Caddy Vessel, adapted primarily to move beneath a seaway surface, made buoyant by the diver's exhalant into a skirt of the vessel, whereby to offset suspension weight of diver's gear, game...
4078509 Salvage apparatus and method  
A salvage apparatus which includes a collapsible bag which has a top and a ottom. A relief valve is mounted at the top of the bag for expelling air from the top of the bag, and a relief valve is...
3940814 Portable salvage lift  
A portable salvage lift apparatus for use in an underwater environment coising a buoyancy system having a variable lift capability and a tethering system employing a brake comprising a pump. This...
3922861 Floating marine barrage  
An inflatable marine barrage having an upper buoyancy chamber and lower ballasting based on an inflatable tube of inverted tear drop cross-sections. Means for inflating and venting the tube can be...
3874012 FLOTATION DEVICE FOR A CRAFT  
A flotation device for craft comprises a compartment in the craft opening on the outside of the craft. A deflated balloon in the compartment is coupled to a source of compressed air. A cover on the...
3814043 SHIP SALVAGE APPARATUS  
Apparatus for salvaging sunken vessels or other sunken objects having enclosures. The apparatus includes inflatable flexible containers which are generally shaped to fit, when inflated, in rooms or...
3777692 LATENT BUOYANCY SYSTEM  
Submerged objects are recovered by a latent buoyancy system including LiH or another chemical reactive with water to evolve a gas and form an inert reaction product, an annular aluminum screen...
3721096 SOFT SUPPORT SYSTEM FOR HULLS AND THE LIKE  
A "soft" support system, preferrably utilizing pneumatic bellows, capable of supporting a ship hull in a relatively level condition on its building foundations or ways during construction and...
3706294 TORPEDO RECOVERY SYSTEM  
A recovery section for a test torpedo having a shape which conforms to the uter contour of the torpedo. An inflatable member is provided which when deflated extends circumferentially about the...
3696773 METHOD FOR SALVAGE OF SUNKEN SHIPS  
A method of raising sunken ships comprising the filling of "lay-flat" plac tubing having a uniformly, evenly spaced, longitudinally ribbed interior with compressed air while submerged. The plastic...
3659299 VARIABLE DISPLACEMENT RECOVERY DEVICES  
This invention provides controlled buoyancy at depth displacement of water. The apparatus includes an expansible lift bag, a gas source, with a gas delivery device connecting the gas source with...
3608510 COLLAPSIBLE PONTOON  
A collapsible pontoon including a flexible metal cage composed of a series f spaced-apart cables an inner inflatable gas-impervious bag disposed within the metal cage and capable upon inflation of...
3602177 APPARATUS FOR RAISING SUBMERGED VESSELS  
Apparatus for raising submerged vessels by hollow buoyant elements which have been pretreated to make the internal pressure in the elements approximately equal to the external pressures to which...
3556034 PREPACKAGED BUOYANCY SYSTEM  
A prepackaged buoyancy system incorporating a hydrazine gas generator betn upper and lower portions of a lifting assembly which are separably connected by a fabric airtight bag such that when the...
3322088 Apparatus for refloating submerged bodies  
3316872 Apparatus for salvaging vessels  
3292564 Exploration and salvage submarine  
3286672 Deep sea salvage equipment  
3208475 Controlled differential pressure valve  
3162165 Salvage system  
3090976 Flexible deep sea buoy  
3080844 Maritime salvage equipment  
3070059 Self-inflating pneumatic unit for naval salvage operations  
3064437 Offshore structure  
3053218 Ship salvaging apparatus  
3046925 Apparatus for raising ships from underwater  
3019754 Ship salvage system  
3016858 Sail boat safety device  
Matches 1 - 50 out of 166 1 2 3 4 >