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Class Information
Number: 405/199
Name: Hydraulic and earth engineering > Marine structure or fabrication thereof > With work deck vertically adjustable relative to floor > Frictional gripper
Description: Method or apparatus wherein the platform is provided with means which clamp against the generally smooth exterior of a columnar support, which means effects vertical movement of the platform relative to its support.










Patents under this class:

Patent Number Title Of Patent Date Issued
8585324 Maintenance platform for off-shore construction Nov. 19, 2013
8500371 Interfitting tubular members Aug. 6, 2013
8425155 Jacking system for a leg of a jack-up platform Apr. 23, 2013
7980785 Supporting articles/loads Jul. 19, 2011
7815398 Methods of positioning an elevating support vessel Oct. 19, 2010
7246972 Method for use of a maritime unit and maritime unit Jul. 24, 2007
7147403 Self-elevating offshore structure Dec. 12, 2006
6869252 Taut mooring system for jack-up type mobile offshore platforms Mar. 22, 2005
6786678 Apparatus for guiding the legs of a lift boat Sep. 7, 2004
6520721 Apparatus for guiding the legs of a lift boat Feb. 18, 2003
6461081 Apparatus for guiding the legs of a lift boat Oct. 8, 2002
6234260 Mobile drilling apparatus May. 22, 2001
6099207 Offshore platform assembly Aug. 8, 2000
6030149 Self positioning fixation system and method of using the same Feb. 29, 2000
5954454 Offshore platform assembly Sep. 21, 1999
5921714 Device for releasing a screw jack mechanism Jul. 13, 1999
5743677 Subsea multi-segmented pile gripper Apr. 28, 1998
5318386 Maneuvering mechanisms for marine platforms, method for managing these mechanisms and installation for implementing the method Jun. 7, 1994
5147148 Heave-restrained platform and drilling system Sep. 15, 1992
5035542 Apparatus and method for releasable connections Jul. 30, 1991
4934869 Gripper device for column supported structures Jun. 19, 1990
4934870 Production platform using a damper-tensioner Jun. 19, 1990
4919571 Orientatable blocking unit with cardan joint for supporting structures on cylindrical elements Apr. 24, 1990
4913592 Floating structure using mechanical braking Apr. 3, 1990
4867612 Offshore platform jacket to pile connector Sep. 19, 1989
4445807 Diverless subsea template levelling system and method May. 1, 1984
4408932 Subsea template levelling system and method Oct. 11, 1983
4398847 Clamping device Aug. 16, 1983
4372707 Pile installation and removal mechanisms in off-shore rigs and method of using same Feb. 8, 1983
4329088 Tilt-up/jack-up off-shore drilling apparatus and method May. 11, 1982
4322182 Apparatus and method for under-water jacking of piles Mar. 30, 1982
4318640 Lifting island Mar. 9, 1982
4160612 Tube closure Jul. 10, 1979
4070868 Off-shore drilling platform and method of mounting Jan. 31, 1978
4041711 Method and apparatus for quickly erecting off-shore platforms Aug. 16, 1977
4012917 Bridge beam tower erection methods and apparatus Mar. 22, 1977
4002038 Method and apparatus for rapid erection of offshore towers Jan. 11, 1977











 
 
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