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Class 405/11 - MEANS TO EXPOSE A NORMALLY WETTED SURFACE,E.G., COFFERDAM, ETC.


Subclass of Class 405 - Hydraulic and earth engineering
Definition: Method or apparatus wherein means are provided to form a
No. of patents: 16
Last issue date: 08/07/2012


NumberTitleIssue Date
8235626Adjustable system and method for carrying out work at an underwater structure
A dry setting installation (1) for generating a substantially dry working space for carrying out work at an underwater structure. The dry setting installation (1) has two side-walls (2), a back wall (3) and a bottom (4) thus formin...
08/07/2012
7421964Floating structure in the shape of a concrete cofferdam and a method for moulding the concrete cofferdam
The present invention relates to a floating structure comprising at least a closed space (10), a hull in the shape of a concrete cofferdam (12) having an external delimiting surface intended to be exposed to surrounding water, and a function for heatin...
09/09/2008
6967413Tidal energy system
The Tidal Energy System is a structure capable of extracting energy from the potential and kinetic energies of the tides, as well as from ocean waves and offshore wind. Its components operate synergistically in multiple capacities to extract energy from these source...
11/22/2005
6652187Portable cofferdam and method for stabilizing the structural integrity of box culvert bridges
A portable cofferdam and method for use in stabilizing the subsurface of box culvert structures. The portable cofferdam is inserted inside the tubular section of large box culverts, which are often used as road crossings over streams, creeks and small riv...
11/25/2003
5961250Substance mixture for cofferdam material, cofferdam material, and the use and preparation thereof
The invention relates to a substance mixture for a material for a cofferdam, to the material, and to the use and preparation thereof....
10/05/1999
5567076Welding chamber
A method of positioning a pipeline across a water-course. A first coffer dam is formed to isolate a first area of the water-course and a first part of the pipeline is then positioned in the first area. A chamber is put at the distal end of the first part ...
10/22/1996
5382115Apparatus intended to be buried in ground beneath water
Apparatus such as a cofferdam 1, intended to be partially buried in ground beneath water comprises a hollow structural framework. The framework includes chambers 12 which have inlets 29 via which pressurized water can be supplied to the chambers. Each cha...
01/17/1995
4991996Work enclosure for servicing marine structures
A work enclosure for servicing a marine structure which is adapted to be positioned around a support member of the marine structure to enclose the member and at least one riser which extends parallel thereto. The enclosure is watertight and open at the to...
02/12/1991
4872781Open top floatable barge repair box with barge to box sealing system
The present disclosure is directed to a watertight floodable barge repair box of generally L-shape, viewed from its end, having a leg and a foot. The leg has an open front and the foot has an open top so that the box may be placed against the side of the ...
10/10/1989
4643617Method 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
4615641Barge repair device
A portable, floatable barge repair device is disclosed having a water tight box having front, back and side walls and a bottom, and a top opening. A superstructure extends generally upwardly from the back wall of the box, the superstructure having an uppe...
10/07/1986
4522532Bottom-seated portable cofferdam and method of use
A bottom-seated portable cofferdam is disclosed along with a method of using the cofferdam for providing working access to underwater surfaces which are generally horizontal. The cofferdam includes a housing having a bottom opening with a skirt extending ...
06/11/1985
4408405Underwater excavator
An underwater excavator comprising a modular non-metallic cofferdam wherein ater under pressure exits from a plurality of nozzles along at least one side of the base of the cofferdam and a fluid driven eductor driven by pressurized fluid evacuates the susp...
10/11/1983
4385582Inflatable device to close a hull breach
A portable device for closing a breach in a boat hull from the inside or the outside which includes an inflatable shallow dome sortable in a cylindrical form and automatically inflatable by the use of a self-contained cartridge to cause expansion into a n...
05/31/1983
4325656Apparatus and method for forming off-shore ice island structure
A method and apparatus for forming an off-shore ice island structure in waters which normally freeze in the winter. The ice island is useful as a base for oil field operations, for oil and gas storage, for docking ships during thaw periods, and the like. ...
04/20/1982
4288176Underwater air pocket work unit
An underwater air pocket work unit has a work chamber contained within a double walled flotation chamber, the upper end of which has a resilient gasket to seal against the hull of a vessel, or other submerged structure. The work chamber is open completely...
09/08/1981
 
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