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6257275 |
Pressure reducing valve
A pressure regulator for breathing apparatus controlled by a diaphragm, piston or bellows having one face exposed to a reference pressure which is automatically maintained at a level substantially...
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5749679 |
Method and device for letting out gas from life jackets of divers
A method and a device for letting out gas from a life jacket for divers, the device being adapted to be in gas flow communication with an interior of the life jacket. Gas is drawn into the device...
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5707177 |
Buoyancy control device for divers
A buoyancy control device for divers includes a plurality of inflatable members each adapted to be inflated to a predetermined maximum volume, or to be deflated, and a fluid distributor for...
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5201611 |
Pressure equalizer for use at deep sea
A pressure equalizer for use for storing, generating and dispensing gas from substantially thin walled tanks at great depth beneath the sea has a gas generating tank contains a low-temperature,...
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5098219 |
Mobile submersible caisson for underwater oil-well drilling and production
A mobile submersible caisson is employed to drill for and recover petroleum products from subsea wells and to deliver the products to shore or to vessels at the well site. The well drilling...
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5067855 |
Casing for containing cameras, videocameras, flashlights portable radios and other articles which can be used in scuba diving
Disclosed is an improved casing for containing cameras, videocameras, flashlights, portable radios and other articles which can be used in scuba diving. It is designed to cause the inner pressure...
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4903628 |
Pressure equalizer
A pressure equalizing cabinet for instruments intended to be submerged in water is described. The device includes a source of compressed air and a piston in a cylinder. One side of the piston is in...
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4706596 |
Actuator usable in a fluid under high pressure
An actuator usable in a first fluid under a high pressure, e.g. on board a submarine operating at great depths to release or jettison ballast and wherein the first fluid is external to the...
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4292914 |
Method and apparatus for facilitating underwater work on ship hulls and like objects
This invention relates to an apparatus for facilitating working on especially horizontal underwater portions of ship hulls, pontoons and other floating objects. The novel feature resides in that...
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4274405 |
Method for varying the ambient pressure in a vessel
The ambient pressure of the environment of an individual within a vessel is varied between an upper and lower pressure value by providing the vessel with a mass of gas sufficient to fill at least a...
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4258794 |
Underwater completion habitat
A submergible, underwater well completion habitat and a method of employing the same in the completion of wells at extended depths. The well completion habitat may be attached to an underwater well...
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4229120 |
Submarine pipeline alignment rig
A submarine pipeline alignment rig includes a working section and a detachable truss section having a fixed fulcrum for engagement with a submerged conduit section. The rig also includes a...
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4187796 |
Specific gravity equalizer system
A system for varying specific gravity of a submersible or any immersed obt under a pressurized environment which includes a compressible piston designed to collapse a certain amount proportional to...
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4137585 |
Buoyancy compensator and inflation system
The following disclosure discloses a buoyancy compensator having an inflatable bladder at the front and rear of a diver, so that adequate buoyancy is provided with respect to the diver's entire...
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4117688 |
Apparatus for working under water
A capsule for enclosing a sub-sea installation part is intended to be left water-filled and thus means for sensing oil or gas leaks from the part is disposed in the upper part of the capsule to...
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4109601 |
Vessel for working under water
A vessel for working under water comprising a substantially spherical residence chamber with an atmospheric pressure therein and accommodating necessary monitoring apparatus for controlling working...
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4103500 |
Apparatus for connecting the ends of submerged pipes
The ends of submerged pipes are connected using a receiver provided with two apertures through which the pipe ends extend, the receiver being adapted to form a watertight enclosure with an...
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4090366 |
Transit capsules
A transit capsule for providing operator access to a sub-sea installation part in a capsule on a sea-bed, the two capsules having complementary means to form a conjunction capsule, has means...
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4068491 |
Method and apparatus for connecting the ends of submerged pipes
The ends of submerged pipes are connected using a receiver provided with two apertures through which the pipe ends extend, the receiver being adapted to form a watertight enclosure with an...
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3996870 |
Arrangement in or relating to a vessel for performing diving operations by means of a diving bell
A vessel for performing diving operations by means of a diving bell capable of being raised and lowered from the vessel, includes a docking chamber for the diving bell which is arranged at such a...
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3991583 |
Method of providing an underwater enclosure
An inflatable underwater structure for providing an artificial environment around a work area, for example, at the sub-sea base of an off-shore oil platform, permitting such work as welding and the...
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3876852 |
Method and apparatus for underwater welding
Apparatus and method for making an underwater weld by a diver, including an underwater hand-portable housing having a top portion and depending sides, with at least a part of the housing being...
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3837171 |
INFLATABLE UNDERWATER STRUCTURE
An inflatable underwater structure for providing an artificial environment around a work area, for example, at the sub-sea base of an off-shore oil platform, permitting such work as welding and the...
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3817299 |
EXPANSIVE GAS PROTECTIVE DEVICE
An expansive gas protective device for use in a personnel work area and including a heavy walled protective vessel formed with a high pressure work piece chamber disposed in the work area and...
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3712070 |
SMALL PORTABLE UNDERWATER OBSERVATION AND COMMUNICATION CHAMBER
A portable underwater air retention chamber comprising; air container means having an access opening sufficient at least to receive the head of a diver; tether means attachable to said container...
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3552419 |
DEEP SUBMERSIBLE POWER ASSEMBLY
A deep sea power unit for performing a variety of work operations at substantially unlimited depths on the ocean floor. Power components are enclosed in a fluid-filled casing and an external...
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3548516 |
HORIZONTAL WET-DRY PRESSURE CHAMBER
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3543526 |
UNDERWATER SUBMERSIBLE CHAMBER SYSTEM
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3541985 |
VARIABLE BUOYANCY ARRANGEMENT
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3512583 |
SERVICE CHAMBER FOR UNDERWATER WELL
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3473338 |
SUBMARINE PIPELINE CAISSON
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3453834 |
DEVICE FOR SUPPLY REPLENISHMENT OF AN UNDERWATER HABITAT
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3421579 |
UNDERWATER COMPLETION
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3387580 |
Submersible water craft
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3379022 |
Underwater shelter
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3379021 |
Inhabitable underwater structure
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3344614 |
Underwater observation bell chamber
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3323312 |
Diving bell and decompression vessel combination and improved method for handling diving personnel
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3299645 |
Underwater capsule
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3112724 |
Deep diving submarine
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2939292 |
Caisson for submerged pipelines
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2784559 |
Pressure equalizing diving bell
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