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| Number | Title | Issue Date |
| 4468152 | Icebreaker system for marine platforms The invention relates to an icebreaker system for marine platforms wherein the system includes two rings of obstacles: a lower ring and an upper ring fixed around pillars of the platform to be protected. The lower ring has obstacles showing a portion slop... | 08/28/1984 |
| 4453859 | Device for connecting and disconnecting the swivel of an oscillating marine platform and a method for putting the said device into use The device comprises two concentric swivels, a first or mooring swivel being arranged on the outside of the second or bearing swivel, the second swivel being fixed to the end of a cartridge held in a movable manner in a tube forming a projection at the lo... | 06/12/1984 |
| 4416473 | Flexible joint for connection of two pipes A flexible joint for connection of two pipes comprises a cup-shaped piece which can be connected to a first pipe, a tubular piece which can be connected to a second pipe, the tubular piece being coaxial with the cuplike piece and being arranged partially ... | 11/22/1983 |
| 4366838 | Mooring assembly for coupling a submarine conduit to another conduit A mooring assembly connects a submarine conduit to another conduit of a pipe-line or fixed installation. The mooring assembly comprises a mooring frame, a movable mooring arm and a mooring head. The conduit is to be connected to the mooring head having a ... | 01/04/1983 |
| 4352598 | Concrete structure for the transmission of loads from the steel lattice of a marine platform and a method of forming said structure A concrete structure for the transmission of loads from the steel lattice tower of a marine platform resting on the sea bed by means of concrete base plates, the lattice tower being made up of tubular members which form bracing joints with the legs of the... | 10/05/1982 |
| 4303352 | Method for the building and putting in place of a sea platform with a gravity resting base, and means for implementing such a method The invention relates to a method for the building and putting in place of a sea platform in using buoyancy chambers. The buoyancy chambers are temporarily attached to the raft and capable of being ballasted for allowing the control of their buoyancy duri... | 12/01/1981 |
| 4290716 | Platform resting on the bottom of a body of water, and method of manufacturing the same A platform resting at the bottom of a body of water, including a plurality of longitudinally disposed bays supported by piers each consisting of a small number of transversely aligned posts resting on a common base and each supporting a cross-beam, each b... | 09/22/1981 |
| 4254728 | Device for mooring and connecting a submarine conduit, and method employing the said device An assembly for mooring a submarine conduit to a pipeline or a fixed structure such as a storage tank. The assembly comprises a mooring head, a fixed mooring frame and a movable mooring arm. The mooring head is fixed to the end of the conduit to be connec... | 03/10/1981 |
| 4249618 | Method and apparatus for the working of underwater deposits A method of working an underwater deposit comprises the following stages: (a) constructing and positioning a platform structure, equipped before or after positioning with drilling devices and installations, (b) executing drilling using these devices and installatio... | 02/10/1981 |
| 4183697 | Laying of underwater pipelines For laying a pipeline on the bed of the sea, a plurality of pipeline sections are successively towed by a tug exerting a traction effort at a point spaced to the rear of the front end of a pipeline section being towed, while another tug exerts a holding e... | 01/15/1980 |
| 4170429 | Installation for inspecting and repairing installations in deep water For inspecting and maintaining a submerged installation comprising an emergent part such as a platform, such as an artificial island or a submerged reservoir, said emergent part is equipped with a track along which a trolley associated with a diving bell ... | 10/09/1979 |
| 4165196 | Method of constructing a column formed from annular elements and elements for the application of said method A method of constructing a hollow column for resting on a base on a submarine bed, comprises the steps of simultaneously starting the construction of a number of elements that are to form the column, causing the partly constructed elements to float, finis... | 08/21/1979 |
| 4162551 | Footbridge for connection between a fixed installation and an oscillating installation A footbridge for connection between a fixed installation and an oscillating installation, for example petroleum production platforms, comprising three sections hinged together, the end sections being hinged to rotatable platforms adapted to be secured to ... | 07/31/1979 |
| 4158516 | Platforms resting on an underwater structure A platform comprises a base structure designed to rest on the bottom of the sea for supporting an industrial or scientific installation above the surface of the water. The base structure comprises a floatable device capable of keeping afloat and means for... | 06/19/1979 |
| 4158517 | Oscillating structure for exploration at sea An oscillating structure for exploration at sea features a column which rests on a heavy base resting on the sea bottom, and which supports a platform above sea level. The column is connected to the base by an articulated joint which allows it to oscillat... | 06/19/1979 |
| 4142819 | Platform for installation at sea or on a body of water A gravity platform for supporting installations above a body of water, comprising a base for resting on the bed of the body of water, a structure secured to the base and rising vertically therefrom, a bridge provided with float means, and means enabling t... | 03/06/1979 |
| 4138853 | Device for positioning a submerged pipeline A device for positioning a pipeline intended to rest on the bottom of the sea or of a body of water. In order to present a resistance to the drifting of the pipeline by the action of cross-currents, the pipeline is provided with a plurality of support mem... | 02/13/1979 |
| 4135844 | Laying of underwater pipelines For laying a pipeline on the sea bed to interconnect first and second spaced underwater installations, a pipeline section is towed from the first to the second installation, the front and rear ends being maintained above the sea bed by a system of floats ... | 01/23/1979 |
| 4127007 | Installation for releasing submerged floats An installation for the release of floats supporting by individual cables a structure submerged in an aqueous medium, comprising attachment means fixed on the structure and co-operating with one end of said cable, the other end carrying the float, liberat... | 11/28/1978 |
| 4126011 | Method of fabrication of offshore structures and offshore structures made according to the method A method and apparatus for fabricating an offshore structure intended to be installed at sea comprising a support structure and a platform mounted on the structure. The platform is made up of one or more pieces that are floatable in water. The support str... | 11/21/1978 |
| 4126010 | Oscillating installation for installing in a body of water and method for its construction The invention relates to an oscillating installation installed at a fixed site in a body of water, comprising a shaft which rests on a heavy base, which itself bears on a bed, and which supports a platform at its upper part, the shaft is connected to the ... | 11/21/1978 |
| 4120168 | Apparatus for laying a pipeline in a body of water The invention consists of an apparatus for laying a pipeline, such as an oil duct or a gas duct, in a body of water, wherein the pipeline, or a section thereof, is enclosed within a ballast tube such that an intermediate space is formed between the pipeli... | 10/17/1978 |
| 4114392 | Platform structure for maritime installations An off-shore gravity type platform for supporting a processing installation above the surface of a body of water and for housing processing components, comprising a pressure-resisting watertight central shaft extending from top to bottom of the platform s... | 09/19/1978 |
| 4107933 | Apparatus and method for towing a pipeline in a body of water An apparatus and method for towing a pipeline in a body of water to a place where the pipeline is to be laid on the bed of the body of water, the pipeline having a positive buoyancy and being provided with trail-ropes distributed therealong which drag on ... | 08/22/1978 |
| 4107802 | Apparatus for releasing submerged floats Apparatus for the release of submerged floats, characterized in that the float is connected to the structure it is intended to support by at least one opening collar which can be kept closed by a locking mechanism capable of being remotely controlled.... | 08/22/1978 |
| 4104886 | Float for use in laying submarine pipelines A float device for use in laying a submarine pipeline from a launching base, comprising one or more tubes containing a liquid less dense than water, such as a hydrocarbon, and fixed to the pipeline so as to form therealong a plurality of compartments isol... | 08/08/1978 |
| 4096705 | Laying of underwater pipelines For laying a pipeline on the bed of the sea, a plurality of pipeline sections are successively towed by a tug exerting a traction effort at a point spaced to the rear of the front end of a pipeline section being towed, while another tug exerts a holding e... | 06/27/1978 |
| 4056945 | Process and device for laying submarine pipelines For laying a submarine pipeline, hauling of the same is exerted by means of a force distribution cable which extends over the full length of the submerged part of the pipeline and which is attached to it by hangers, preferably in conjunction with heavy ch... | 11/08/1977 |
| 4052862 | Method of submerging pipelines The invention consists of a method and apparatus for laying a pipeline, such as an oil duct or a gas duct, in a body of water, wherein the pipeline, or a section thereof, is enclosed within a ballast tube such that an intermediate space is formed between ... | 10/11/1977 |
