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Class Information
Number: 405/201
Name: Hydraulic and earth engineering > Marine structure or fabrication thereof > With horizontally movable work deck
Description: Method or apparatus wherein the construction includes a platform on which, or from which a work operation is to be performed, which platform is mounted so as to be shiftable relative to its support, the shifting occurring in a plane substantially parallel to the water surface.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8585325 Cantilever system and method of use Nov. 19, 2013
8573890 Marine power generator deployment and retrieval system Nov. 5, 2013
8439606 Cantilever skidding system on a drilling rig May. 14, 2013
8387704 System and method for simultaneous sea drilling operations Mar. 5, 2013
8287212 Cantilever system and method of use Oct. 16, 2012
8025462 Displaceable platform structure and method of the displacement thereof Sep. 27, 2011
7921918 Support apparatus for a well bore tool Apr. 12, 2011
7886845 Method and system for monitoring auxiliary operations on mobile drilling units and their application to improving drilling unit efficiency Feb. 15, 2011
7451821 Blow out preventer transfer platform Nov. 18, 2008
7410326 Auxiliary reaction frame system for cantilevered jack-up rigs, and method therefore Aug. 12, 2008
7377335 Method and apparatus for movement of drilling equipment between adjacent locations May. 27, 2008
7234896 Vertically folding service arm for a movable platform offshore drilling or servicing rig Jun. 26, 2007
7101117 Minimized wave-zone buoyancy platform Sep. 5, 2006
7083004 Cantilevered multi purpose tower and method for installing drilling equipment Aug. 1, 2006
6997647 Active hold down system for jack-up drilling unit Feb. 14, 2006
6729804 Cantilevered tower for jack-up platform May. 4, 2004
6491477 Self-elevating drilling unit Dec. 10, 2002
6481931 Cantilever supported drilling rig Nov. 19, 2002
6406222 Mooring construction Jun. 18, 2002
6390732 Jack-up, movable drilling platform having a telescoping outrigger May. 21, 2002
6217258 Dual hoist derrick system for deep sea drilling Apr. 17, 2001
6210076 Offshore deck installation Apr. 3, 2001
6171027 Cantilevered jack-up platform Jan. 9, 2001
6161358 Modular mobile drilling system and method of use Dec. 19, 2000
6030148 Method for improving the feasibility of a drilling rig of jack-up type and a drilling rig of jack-up type Feb. 29, 2000
5997217 Shallow water well-drilling apparatus Dec. 7, 1999
5492436 Apparatus and method for moving rig structures Feb. 20, 1996
5407302 Method and apparatus for skid-off drilling Apr. 18, 1995
5290128 Method and apparatus for transferring a drilling apparatus from a movable vessel to a fixed structure Mar. 1, 1994
5139367 System for moving drilling module to fixed platform Aug. 18, 1992
5052860 System for moving drilling module to fixed platform Oct. 1, 1991
5051035 Bearing system for a turning means Sep. 24, 1991
5032040 System for moving drilling module to fixed platform Jul. 16, 1991
4973198 Offshore drilling rig transfer Nov. 27, 1990
4938628 System for moving drilling module to fixed platform Jul. 3, 1990
4913591 Mobile marine platform and method of installation Apr. 3, 1990
4848966 Arrangement in a production platform Jul. 18, 1989
4823870 Cantilever drilling structure Apr. 25, 1989
4784410 Concentric piping flex joint Nov. 15, 1988
4716972 Floating drilling platform Jan. 5, 1988
4630681 Multi-well hydrocarbon development system Dec. 23, 1986
4609306 Ice-breaking off-shore drilling and production structure Sep. 2, 1986
4574241 Marine surveying apparatus and method for locating pipelines buried under the seabed Mar. 4, 1986
4483644 Cantilevered mobile marine rig with hydraulic load equalizer Nov. 20, 1984
4422791 Universal joint construction for use in anchoring a surface platform to a sea bed Dec. 27, 1983
4401398 Support structure for mudline suspension wellhead Aug. 30, 1983
4389141 Marine structure having a deck or work platform supported by absorbing mechanisms Jun. 21, 1983
4295758 Working platform for oil drilling operations in ice covered sea areas Oct. 20, 1981
4288177 Walking platform construction Sep. 8, 1981
4208158 Auxiliary offshore rig and methods for using same Jun. 17, 1980

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