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Class Information
Number: 212/175
Name: Traversing hoists > Having means facilitating assembly or disassembly
Description: Apparatus including means to permit the ready removal or replacement of either (a) an element or subassembly of the apparatus from or on the remainder thereof, or (b) the entire traversing hoist from or on a supporting structure.










Sub-classes under this class:

Class Number Class Name Patents
212/177 Of boom sections 76
212/178 Of counterweight from hoist 49
212/176 Of sectional vertical support for boom 25
212/179 Of traversing hoist from support 90


Patents under this class:
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Patent Number Title Of Patent Date Issued
8701904 Crane vessel Apr. 22, 2014
8684136 Fall arrest system and method for using same Apr. 1, 2014
8499430 Assembly method of transfer mechanism and transfer chamber Aug. 6, 2013
8438713 Pin changing device and method May. 14, 2013
8397924 Drum frame system for cranes Mar. 19, 2013
8371030 Maintenance method of wind turbine generator Feb. 12, 2013
8366373 Collapsible, lightweight mount to support a cargo loading device Feb. 5, 2013
8348073 Carbody connection system and crane using same Jan. 8, 2013
8302789 Rotating superstructure and crane Nov. 6, 2012
8176611 Pin changing device and method May. 15, 2012
8141725 Jib crane Mar. 27, 2012
7748547 Movable independent crane system used temporarily for moving or replacing components and mounting wind generators Jul. 6, 2010
7703615 Lattice piece for a large mobile crane and method of erecting the same Apr. 27, 2010
7624882 Tie-back system for cranes, in particular heavy load offshore cranes Dec. 1, 2009
7604134 Portable knockdown trolley hoist Oct. 20, 2009
7565982 Crane and boom hoisting device thereof Jul. 28, 2009
7422675 Process for changing anodes in an electrolytic aluminum production cell including adjustment of the position of the anode and device for implementing the process Sep. 9, 2008
7377398 Portable knockdown trolley hoist May. 27, 2008
7376473 Automatic LPG tank insertion apparatus for automobiles May. 20, 2008
7367461 Movable girder mounted jib May. 6, 2008
7293668 Manual boom lift method and apparatus Nov. 13, 2007
7290671 Crane Nov. 6, 2007
7290672 Tower crane device Nov. 6, 2007
7086547 Travelling working machine Aug. 8, 2006
7004337 Foldable cab/pivot unit for a tower crane Feb. 28, 2006
6899238 Methods and apparatus for supporting a davit arm May. 31, 2005
6702132 Crane self-assembly system Mar. 9, 2004
6607331 Elevated crane support system and method for elevating a lifting apparatus Aug. 19, 2003
6588521 Four track crawler crane Jul. 8, 2003
6460307 Boom attachment for a prime mover Oct. 8, 2002
6360905 Crawler-mounted crane with detachable lateral stablizers Mar. 26, 2002
6305560 Multiple pedestal ring for ringer crane Oct. 23, 2001
6045297 Method and apparatus for drilling rig construction and mobilization Apr. 4, 2000
6021910 Construction crane base Feb. 8, 2000
5823279 Carbody to crawler connection Oct. 20, 1998
5649635 Easily removable sheave assembly Jul. 22, 1997
5542812 Crane having swing away hoist mount Aug. 6, 1996
5522515 Ring segment connection Jun. 4, 1996
5484069 Process for self-disassembling a crawler crane Jan. 16, 1996
5426907 Construction crane base Jun. 27, 1995
5427256 Crane upper works to lower works alignment system Jun. 27, 1995
5402898 Crane having boom rest Apr. 4, 1995
5337908 Patient hoist Aug. 16, 1994
5240129 Heavy duty crane with self-retracting/erecting live mast Aug. 31, 1993
5203837 Balanced lifting crane Apr. 20, 1993
5199586 Quick-connect sectional boom members for cranes and the like Apr. 6, 1993
5139157 Concrete placing boom assembly for ready-mix concrete Aug. 18, 1992
5083395 Crab cage and pole apparatus Jan. 28, 1992
5064079 Knockdown hoist with double winches Nov. 12, 1991
4856662 Pedestal crane and method of assembling and erecting it Aug. 15, 1989

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