Class 405/208 - And leg depending from base

Subclass of Class 405 - Hydraulic and earth engineering
Definition: Method or apparatus wherein the foundation includes elongated
No. of patents: 32
Last issue date: 11/13/2007

Number	Title	Issue Date
7293516	Apparatus for reconfiguration of a variable-draft vessel A vertical translation mechanism for reconfiguring the hull form of a reconfigurable vessel having independently movably side hulls and a center hull is disclosed. The vertical translation mechanism includes a hydraulic-force actuator and a nonmetallic bearing. The ...	11/13/2007
7287484	Berthing method and system A method and a system are provided for the safe berthing of marine vessels in the high seas and other unprotected open waters. The invention allows a large vessel to be berthed alongside in close enough proximity to a marine structure so that conventional loading ar...	10/30/2007
7281881	Column-stabilized platform with water-entrapment plate An apparatus for use in offshore oil or gas production in which a plurality of vertical stabilizing columns are supported on a submerged horizontal water entrapment plate is provided to support minimum offshore oil and gas production facilities above a subsea wellhe...	10/16/2007
7246972	Method for use of a maritime unit and maritime unit A maritime unit and a method for operating a maritime unit. The maritime unit includes a frame structure. The maritime unit includes at least three legs moveable between a standby position and an extended position. A jack mechanism moves the legs between the standby...	07/24/2007
7086809	Minimum floating offshore platform with water entrapment plate and method of installation An apparatus for use in offshore oil or gas production in which a plurality of vertical stabilizing columns are supported on a submerged horizontal water entrapment plate is provided to support minimum offshore oil and gas production facilities above a subsea wellhe...	08/08/2006
6171027	Cantilevered jack-up platform A drilling rig, in particular for the offshore industry, in the form of a jack-up platform on which a cantilever is mounted so as to be movable at least substantially horizontally and in a first direction, with the cantilever projecting more or less outsi...	01/09/2001
6015245	Semisubmersible offshore vessel Improvements to a ring pontoon semisubmersible vessel. The centerlines of the corner columns ar displaced with respect to the axial centerlines of the forward and aft portions of the ring pontoon. Additionally, the centerlines of the corner columns may be...	01/18/2000
6012873	Buoyant leg platform with retractable gravity base and method of anchoring and relocating the same A deep water platform, suitable for use as a hydrocarbon exploration or production facility in very deep offshore waters, and a method of constructing the same are shown. The platform is positioned on top of a buoyant leg structure. During normal drilling...	01/11/2000
5868182	Submersible logging device The underwater logging device of the present invention is selectively remotely maneuverable to engage submerged free standing timber with sawing and dogging apparatus for selectively sawing and dogging the timber. The device includes a buoyancy tank mount...	02/09/1999
5833397	Shallow draft floating offshore drilling/producing structure A shallow draft floating offshore drilling/producing structure. The structure is formed from a buoyant hull on which one or more modules or decks may be placed to support process equipment, a drilling rig, utilities, and accommodations for personnel. Dril...	11/10/1998
5032040	System for moving drilling module to fixed platform A jack-up rig includes a cantilever beam assembly and a drilling module is mounted on the cantilever beam assembly. The jack-up rig also includes means for moving the cantilever beam assembly from the storage position to extended positions wherein a rearw...	07/16/1991
4907912	Submersible production storage barge and method for transporting and installing a jack-up rig in a body of water A submersible production storage barge and method for transporting and installing a jack-up rig in a body of water has the submersible production storage barge releasably secured to a jack-up rig while the jack-up rig and submersible production storage ba...	03/13/1990
4875806	Node intersection between columns and pontoon members at a tendon-moored platform A node intersection between circular columns and pontoon members at a tendon-moored semisubmersible offshore platform. The pontoon members have a box shape, defined by vertical side walls, a horizontal deck and a horizontal bottom skin, joined together in...	10/24/1989
4648750	Jacket tower structure and method of installation A jacket tower structure for use in deep water which includes a plurality of tapering jacket sections adapted to be nested, each section including at least three jacket legs. The base and lower jacket sections include cylindrical legs interconnected by bo...	03/10/1987
4627767	Mobile sea barge and platform A mobile sea barge having a unitary lower hull which has sufficient buoyancy to float the entire barge, an upper hull spaced from the lower hull by a single, centrally-positioned, vertical member, and a movable stabilizing hull arranged about the central ...	12/09/1986
4618286	Composite platform for petroleum workings in polar seas The platform comprises an annular truncated cone of concrete which constitutes the main resistant element of the platform and is designed to take the thrust of ice, and a cylindrical steel part housed inside the annular truncated cone. Watertight passages...	10/21/1986
4569618	Procedure for draining off shallow gas from the seabed and an arrangement for execution of the procedure The procedure for draining off shallow gas from the seabed and arrangement for execution of the procedure, whereby through the upper sedimentary layer is placed a system of vertical drainage piles (2) for gas around the site in question for location of a ...	02/11/1986
4427319	Lifting equipment for an offshore construction An offshore construction in which a floatable platform is supported through raisable and lowerable support legs directly or indirectly on the sea bed. At least two cable winches for each support leg are arranged as lifting equipment on the platform. One c...	01/24/1984
4385583	Work platform A stable offshore platform for surface or undersea work is provided by connecting a semi-submersible trailer unit with a workboat. Preferably, two columns of the trailer are joined by a beam member or truss, and this assembly is linked to the workboat via...	05/31/1983
4359164	Floating crane apparatus A floating crane apparatus is disclosed as including an annular float assembly comprising individual pontoon members detachably connected and interconnecting frame means which includes a bridge spanning a central opening in the annular float assembly by w...	11/16/1982
4266887	Self-elevating fixed platform A mobile offshore platform and method of fabrication are disclosed. The platform features a deck member, a base member, leg structures interconnecting the two members, and means for varying the distance between the members. The leg structures are secured ...	05/12/1981
4265568	Gravity base, jack-up platform - method and apparatus The invention relates to an offshore, gravity base, jack-up platform comprising a deck, a gravity base and one or more legs interconnecting the deck and base. The gravity base comprises a generally polygonal shaped, monolithic hull structure with reaction...	05/05/1981
4254730	Anchoring apparatus An anchor apparatus to anchor houseboats or similar water craft comprising at least one retractable anchor element selectively movable between an upper or travel position and a lower or anchor position affixed to the houseboat having a swivel pad specific...	03/10/1981
4145158	Diaphragm closure support system A diaphragm closure support system connectable to the inside of a pipe adjacent a diaphragm closure on the end of the pipe to prevent rupture of the diaphragm closure by hydrostatic pressure when the pipe is submerged in water. A diaphragm closure support...	03/20/1979
4138199	Method of driving piles underwater A method is disclosed for driving a pile into the ocean floor utilizing an underwater hammer. A leg of an offshore jacket structure is provided with several annular guide sleeves affixed to the leg at several spaced apart locations along the exterior of t...	02/06/1979
4117690	Compliant offshore structure The disclosure relates to a compliant platform for use in deep water. The platform comprises a structure including a working deck positioned above the water by a plurality of leg members which are rigidly connected to the working deck and are pinned into ...	10/03/1978
4083193	Offshore apparatus and method for installing The offshore apparatus in preferred form comprises a structure mounted on the ocean floor and terminating in a platform located beneath the surface of the water to carry loads extending above the surface. A plurality of legs extend generally vertically th...	04/11/1978
4069681	Offshore structure for deltaic substrates A submergible offshore structure capable of being floated by a buoyant hull, to a subsea working site. An anchoring system incorporated into the structure includes a plurality of elongated caisson-like legs which are guidably moved vertically into and out...	01/24/1978
4038830	Modular geometric offshore structures system A modular system of offshore structures having one or more hyperboloidal structures which are adapted to cooperate with a variety of ringlike foundation elements, for example by mooring or rigid attachment. The hyperboloidal structure comprise pile arrays...	08/02/1977
4000624	Multi-component offshore platform A multi-component offshore platform having a floatable and ballastable central column with a base that is adapted to rest on the bottom of the sea. The column is towed to its site while floating and then upended and ballasted to sink the base to the prope...	01/04/1977
3976021	Installation of vertically moored platform This invention relates to the installation of a Vertically Moored Platform and equipment and apparatus used in effecting such installation. The floating structure, anchored only by essentially parallel and vertical elongated members under tension, is posi...	08/24/1976
3945212	Arrangement in or relating to caissons or the like This invention provides a caisson adapted to bear against the sea floor, constructed such that it contacts the sea floor with a minimum of motion. The caisson includes downwardly protruding members which make first contact with the sea bottom, thereby red...	03/23/1976

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Class 405/208 - And leg depending from base