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| Number | Title | Issue Date |
| 7326020 | Multi-purpose vessel and method for recovering, storing and/or offloading material in a dredging operation A method of building a levee or an island is disclosed. The method includes dredging material from a surface of a body of water with a dredge assembly mounted to a hull and supporting a hopper with the hull. The hopper is adapted to receive the material. The hopper ... | 02/05/2008 |
| 7258510 | Systems and methods useful in stabilizing platforms and vessels having platforms and legs Disclosed is a system useful in stabilizing a vessel. The vessel includes, but is not limited to, a first leg, a second leg, a third leg, and a platform coupled to the first, second, and third legs. The system can include a first brace coupled to the first leg at a ... | 08/21/2007 |
| 6497535 | Material distribution vessel and method for distributing material recovered in a dredging operation A material distribution vessel for distributing material recovered in a dredging operation is disclosed. The material distribution vessel includes a hull; a propulsion system for selectively moving the hull through a waterway; and a conveyor system suppor... | 12/24/2002 |
| 6443660 | Method and system for manipulating an object located underwater An apparatus for manipulating an object located proximate an underwater floor is disclosed, in a preferred embodiment comprising a foundation implantable in the underwater floor; a lifting frame extending between the foundation; and a multiplicity of slin... | 09/03/2002 |
| 5286425 | Method of installing a cementitious composition A method of installing a cementitious composition includes providing a dry fast setting cementitious composition having a set time and in the form of finely divided particles of at least one cement binder, pouring an amount of the dry cementitious composi... | 02/15/1994 |
| 5222839 | Method and apparatus for underwater reclamation An improved method for underwater reclamation is disclosed. Dredged mud sent under pressure by an earth and sand conveying device is treated with solidifying material, and before it is solidified, it is directly fed to an underwater reclaiming apparatus. ... | 06/29/1993 |
| 5205646 | Method for conveyance of cement under water to form concrete This invention relates to the conveyance of cement under water to form concrete. The method claimed utilizes, inter alia, a positive displacement pump and feed pipe to convey unreacted cement, suspended in an environmentally safe and non-reactive liquid v... | 04/27/1993 |
| 5108790 | Methods of applying compositions of no mix compounds Dry cementitious compositions and packages and methods for their application. The dry compositions do not have to be mixed with water but instead are poured, sprayed or troweled onto a substrate which contains water in an amount in excess of that necessar... | 04/28/1992 |
| 5088858 | Method and apparatus for constructing a column-shaped marine structure and structure produced thereby A method of constructing a column-like marine structure including the steps of constructing and placing an assembly of floats in a dry area, placing on the float assembly a column base having its own buoyancy, flooding the area to float the assembly of fl... | 02/18/1992 |
| 5076732 | Method for the construction of concrete shafts for a platform or similar structure and a section for similar use Procedure for the construction of a concrete shaft for a platform or similar structure, where one of several of the shafts will be outfitted with relatively much equipment. The shafts are constructed of prefabricated sections which are consecutively insta... | 12/31/1991 |
| 4923334 | Lost casing for constructing a rigid structure upon the bottom of a body of water This invention is a method and casing (1) for constructing a rigid structure upon the bottom of the water. The casing to be used is a lost pillar casing of particular shape. It is larger at the bottom than at a higher level and preferably is composed of f... | 05/08/1990 |
| 4923335 | Process and device for the production of a marine engineering structure, such as a pier, jetty and the like The invention relates to a process and a floating apparatus (1, 2, 18) for the construction of columnlike elements (16, 17), forming part of a pier, a jetty or the like marine structure, in which a first part (16) is manufactured on a support (5) attached... | 05/08/1990 |
| 4824290 | Method of constructing a rigid structure upon the bottom of a water as well as lost casing for performing said method This invention is a method and casing (1) for constructing a rigid structure upon the bottom of the water. The casing to be used is a lost pillar casing of particular shape. It is larger at the bottom than at a higher level and preferably is composed of f... | 04/25/1989 |
| 4804297 | Method of underwater casting A method of formless underwater casting of cement is disclosed. The method involves the addition of silicate to water in which a structure bound with Portland cement or high-alumina cement is to be cast. The cementitious mixture as a slurry is then poured... | 02/14/1989 |
| 4778308 | Arrangement in an offshore concrete platform Arrangement in an offshore concrete platform comprising a base structure (1) and at least one tower structure (3) having a tower foot (5). The tower foot (5) is supported by a pair of annular, downwardly diverging, conical shell structures (6,7) forming a... | 10/18/1988 |
| 4767240 | Pile-framed structure An underwater pile-framed structure comprises a plurality of upright piles 11 arranged in two parallel and spaced rows, reinforcing cages 13 surrounding the piles in peripherally spaced relationship thereto, and precast block stacks 22, 23 connecting toge... | 08/30/1988 |
| 4759663 | Method of placing concrete into a steel encasement A method of placing concrete into a steel encasement constructing an offshore structure. The steel encasement is erected. A plurality of first concrete injection holes are formed through the steel encasement in a heightwise spaced manner. The concrete is ... | 07/26/1988 |
| 4749309 | Offshore platform structure of reinforced concrete and a method of producing same An offshore platform structure of reinforced concrete for standing on the bottom of a sea as a consequence of its own weight. The structure includes a base supporting a tower for a platform deck. The lower part of the tower includes a cylindrical portion ... | 06/07/1988 |
| 4747878 | Compositions and methods of making no mix cements Dry cementitious compositions and methods for their application. The dry compositions do not have to be mixed with water but instead are poured, sprayed or troweled onto a substrate which contains a substantial excess of water than that necessary for the ... | 05/31/1988 |
| 4743301 | Concrete composition for underwater use A concrete composition for underwater use contains about 0.1 to 4% by weight based on cement content of a water soluble vinyl polymer containing vinyl units having sulfonic groups. The concrete composition is easy to mix and prevents separation of concret... | 05/10/1988 |
| 4741648 | Offshore platform structure having at least a superstructure and a substructure made of reinforced concrete, and slipforming means for slipforming supporting columns of such structure Slipforming means intended for slipforming inclined, hollow columns of reinforced concrete, comprising a slipform platform (14) including the form work (28, 29), which is supported by and may be lifted/lowered by means of a climbing rod system (12) which ... | 05/03/1988 |
| 4725166 | Mobile marine operations structure A marine operations structure for use in arctic seas having steel/concrete composite ice walls positioned to permit multi-year ice ridges to be broken up with lower vertical forces imposed on the structure than heretofore possible. The structure provides ... | 02/16/1988 |
| 4704052 | Foundation and method for improving the resistance to sliding of civil engineering structures A foundation for a retaining wall-type of structure acted upon by a principal force tending to slide same in a predetermined direction is anchored by a plurality of slide resisting walls. The slide resisting walls extend parallel to the predetermined dire... | 11/03/1987 |
| 4688967 | Offshore platform structure having at least a superstructure and a substructure made of reinforced concrete An offshore platform structure (1) comprising a deck superstructure (4) which is supported at least by three inclined lower supporting columns (5) which are arranged apart and extend convergingly upwards towards an intermediate structure (6), and one or m... | 08/25/1987 |
| 4664556 | Method for building structures in water A method of construction is provided in which a casing or assemblage of casings which can be handled as a unit is partly immersed in water to a controlled variable depth and used to mould a self-hardenable material such as freshly mixed concrete to form a... | 05/12/1987 |
| 4643617 | Method of creating offshore seabed mound A seabed mound creating method suitable for a construction of a large scale offshore structure comprises the steps of setting up a plurality of sheet piles along the outer periphery of a mound creation region in a seabed area of soft ground to form an ear... | 02/17/1987 |
| 4606676 | Manufacture of articles A method of manufacturing articles in which the articles are partially fabricated in a work area which is in portion of a buoyant platform and at least partially below the level of water within which the platform is located, the partially fabricated artic... | 08/19/1986 |
| 4527926 | Method for building a protective wall when constructing an underwater base An underwater construction which includes a concrete base slab and a protective wall. The lower end of the protective wall remains somewhat in the concrete cast of the base slab. The protective wall is formed by vertically extending elements. Water may be... | 07/09/1985 |
| 4487526 | Method of and structure for erecting an artificial island An artificial island located on the high sea is formed of a support structure and a platform mounted on the upper end of the support structure. During erection, the support structure, not completed for its full height, is moved into position and founded o... | 12/11/1984 |
| 4482273 | Process of casting or repairing concrete under water The present invention relates to a process of casting of repairing concrete under water whereby the concrete (mortar) to be cast to a minimum extent contacts water and leaching of the binding agent is prevented. The purpose of the process according to the... | 11/13/1984 |
| 4480944 | Offshore drilling of large diameter holes in rock formations A drilling rig comprises a platform (10) supported above a sea surface (14) by legs which extend to the sea bottom (16). A drill guide (30) of rigid open framework construction extends down from the platform to the sea bottom. The drill guide is only mini... | 11/06/1984 |
| 4468156 | Underwater structure and method for its construction The invention relates to a method of constructing a free standing structure in a body of water, comprising the steps of attaching an impervious membrane to a floating formwork, filling the membrane with water thereby expanding it, partially filling the ex... | 08/28/1984 |
| 4448570 | Method of constructing a concrete off-shore structure more than 200 m high stabilized on the sea bed by its own weight The structure is made in several "storeys" (D1, D2, D3). These are floated away from their construction site in conventional manner. Once in sufficiently deep water, the storeys are tilted over so that they float on their side, and they are then joined to... | 05/15/1984 |
| 4443131 | Method for constructing an offshore platform structure having a plurality of supporting legs inclined inwardly towards each other A method for constructing an offshore platform structure having a plurality of supporting legs inclined inwardly towards each other is disclosed. The entire structure may be constructed in a dry dock, or optionally the lower raft may be constructed in the... | 04/17/1984 |
| 4422805 | Method of grouting offshore structures Submerged cavities such as occur in jacketed pilings in offshore structures are grouted by the sequential use of materials with initially decreasing densities, the heaviest of which is lighter than water, followed by the use of conventional grouting mater... | 12/27/1983 |
| 4397587 | Method of constructing an artificial island and island constructed by the same An artificial island is constructed by depositing material such as sand, y or the like on the building site on the bottom and by providing inhibiting means formed by branched, relatively spaced elements positioned on the building site, to reduce the rate... | 08/09/1983 |
| 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 |
| 4220421 | Subsea wellhead protective enclosure Method and apparatus for protecting subsea wellheads and christmas trees from damage by anchors, fishing nets, trawl boards, and other towed devices. The apparatus includes an annular, rigid protective enclosure with inner and outer walls that define a ho... | 09/02/1980 |
| 4165198 | Method for forming pier foundation columns This invention comprises a technique for constructing concrete foundation columns in underwater locations, wherein the steel casing members used to form the columns may be recovered for subsequent re-use. In the technique, an inner and outer casing are pa... | 08/21/1979 |
| 4129008 | Tremie tube A concrete feeding tube, hereinafter referred to as a "tremie tube", is used to feed concrete grout or the like underwater. This tremie tube consists of an outer tube having desired rigidity and a number of through-holes, and an inner tube having desired ... | 12/12/1978 |
