| Patents for B66C 23 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes (16,687) |
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| 06/07/1990 | DE3910802C1 Lattice-mast portion which can be coupled |
| 06/06/1990 | EP0371813A2 Handling devices |
| 06/05/1990 | US4930402 Hydraulic lifting cylinder-piston unit |
| 05/31/1990 | CA2004108A1 Handling devices |
| 05/30/1990 | CN2057659U Automati elevator of tower crane driver's cab |
| 05/30/1990 | CN2057658U Self-lifting type crane |
| 05/23/1990 | CN2057416U Compact type elevator |
| 05/17/1990 | DE3926920A1 Railway crane with longitudinal support arms - has counter weight plates attached to supports on arm struts |
| 05/17/1990 | DE3838975A1 Mobile crane |
| 05/16/1990 | EP0368811A1 A reset device for hydraulic load control systems |
| 05/16/1990 | EP0368463A1 A crane and lift enhancing beam attachment with moveable counterweight |
| 05/16/1990 | CN2057171U Single track moving hanger |
| 05/15/1990 | US4925039 Portable folding crane |
| 05/08/1990 | US4923071 Jib stretching and folding mechanism for a jib crane |
| 05/03/1990 | WO1990004564A1 Crane control system |
| 05/02/1990 | CN2056670U Arm frame system for wheel crane |
| 04/25/1990 | EP0364994A1 Crane control |
| 04/24/1990 | US4919393 Deepwater subsea lowering/lifting system |
| 04/24/1990 | US4918771 Patient lifting and hoist therefor |
| 04/19/1990 | DE3835231A1 Combined A-frame/slewing crane |
| 04/19/1990 | CA2001046A1 Crane control |
| 04/11/1990 | CN1041141A Multiple-arm crane |
| 04/04/1990 | CN2055489U Cleaning device for high-storey building |
| 04/03/1990 | US4912890 Air/water cranes |
| 04/03/1990 | CA2000107A1 Lifting devices |
| 03/28/1990 | EP0360702A1 Collapsible crane with a jib comprising two or three elements articulating upon one another |
| 03/28/1990 | EP0360071A1 Improved crane for mounting on vehicles |
| 03/28/1990 | EP0359975A1 Overhead travelling crane, in particular for ship holds |
| 03/21/1990 | CN2054788U Hoisting apparatus used for loading goods of building |
| 03/21/1990 | CN1007236B Carrier track system for extensible and retractable boom machines |
| 03/15/1990 | DE3830108A1 Inclination transmitter |
| 03/14/1990 | EP0358343A1 Crane with overload detector |
| 03/14/1990 | EP0357988A2 Mobile concrete pump |
| 03/08/1990 | WO1990001916A1 Safety equipment for patient hoist with electric hoist system |
| 03/06/1990 | US4906981 Method and apparatus for monitoring the effective load carried by a crane |
| 03/06/1990 | US4905849 Overhoist prevention system |
| 03/01/1990 | DE3915771A1 Gegenlastanordnung fuer auslegerkrane Counterweight arrangement for boom cranes |
| 02/27/1990 | US4904142 Apparatus for inserting elongated heavy articles into stowage cells on ships |
| 02/21/1990 | CN2053205U Dual-purpose jib for tower crane |
| 02/20/1990 | US4902191 Pail lifter |
| 02/14/1990 | CN2052823U Automatic ignitting system for autocrane |
| 02/13/1990 | US4899986 Rotary hoist |
| 02/13/1990 | US4899985 Low-profile hydraulic lift |
| 02/07/1990 | EP0354167A1 Crane, especially a crane for heavy loads |
| 02/06/1990 | US4898288 Semi-submersible crane vessel |
| 01/31/1990 | EP0353099A2 Monitoring system for load carriers |
| 01/31/1990 | EP0352259A1 Object transport apparatus. |
| 01/30/1990 | CA1265101A1 Crane boom having variable angle offset capability |
| 01/23/1990 | US4895263 Foldable machine for handling and lifting loads |
| 01/23/1990 | US4895262 Overturning-preventing device for crane trucks and similar machines |
| 01/11/1990 | WO1990000150A1 Travelling crane for heavy loads |
| 01/11/1990 | DE3915757A1 Einrichtung zum querneigungsausgleich von brueckenrahmen, insbesondere von eisenbahnkranen Means for compensating bank of brueckenrahmen, especially of railway cranes |
| 01/11/1990 | DE3822700A1 Auxiliary apparatus for mounting a work arm on a profiled load-bearing member |
| 01/10/1990 | CN2050842U Elevator of main boom for lifting |
| 01/10/1990 | CN2050841U Light crane being able to disassemble and assemble |
| 01/09/1990 | US4892202 Deepwater extended hook travel attachment |
| 01/09/1990 | US4892201 Jib system for cranes, especially mobile cranes |
| 01/09/1990 | CA1264308A1 Powered lifter |
| 01/03/1990 | EP0349359A1 Torque or moment limiting system for hoisting devices |
| 01/03/1990 | CN1006297B Umbrella-type crane having the adjustable top towing rope |
| 12/28/1989 | DE3818226A1 Substructure for conveying devices, lifting appliances or the like |
| 12/20/1989 | CN2049641U Domestic windowsill lifter |
| 12/06/1989 | EP0344531A2 Cable-severing apparatus |
| 12/05/1989 | US4884938 Apparatus for handling large-sized articles |
| 11/30/1989 | WO1989011602A1 Thrust chain and its drive |
| 11/30/1989 | WO1989011575A1 Telescopic beam |
| 11/30/1989 | WO1989011435A1 A crane |
| 11/29/1989 | CN2048467U Crane on small four-wheel tractor |
| 11/28/1989 | US4883186 Easy erecting telescopic mast |
| 11/21/1989 | US4881864 Boom hoist for attachment to a trailer hitch drawbar |
| 11/16/1989 | WO1989010892A1 Deepwater extended hook travel attachment |
| 11/14/1989 | US4880345 Load hoisting assembly particularly for boats |
| 11/01/1989 | CN2046879U Tractor crane for loading-unloading floor |
| 10/25/1989 | CN2046497U Crane |
| 10/24/1989 | US4875415 Rotary jack assembly for a crane |
| 10/24/1989 | CA1262445A1 Marine vessel for lifting and supporting loads |
| 10/12/1989 | DE3811225A1 Hydraulic support device |
| 10/11/1989 | EP0336676A1 Gear lock quick disconnect mechanism for articulated machine |
| 10/10/1989 | US4872581 Knock-down boom for pick-up truck |
| 10/05/1989 | DE3840408A1 Mobile crane with telescopic jib |
| 10/04/1989 | EP0181399B1 Apparatus for moving crane vehicle laterally |
| 10/04/1989 | CN2045377U Vertical lifting hand hydraulic crane |
| 10/03/1989 | CA1262105A1 Patient lifting and hoists therefor |
| 09/27/1989 | EP0334187A1 Mobile telescopic jib crane |
| 09/27/1989 | EP0273955B1 Two-stage hydraulic telescopic jack |
| 09/26/1989 | CA1261790A1 Dredger |
| 09/21/1989 | DE3808121A1 Manipulating appliance for gripping and moving objects |
| 09/21/1989 | DE3806599C1 Building crane |
| 09/19/1989 | US4867321 Variable reach crane jib with automatic balancing device |
| 09/13/1989 | EP0331856A1 Foldable crane with rapid and automatic deployment |
| 09/12/1989 | US4865513 Portable manway cover handling apparatus |
| 09/07/1989 | DE3806390A1 Telescopic cylinder system |
| 09/05/1989 | US4863044 Latticework construction for cranes |
| 08/31/1989 | DE3817313A1 Brake system, especially a hydraulic brake system for a part, movable by way of a drive |
| 08/29/1989 | US4860539 Vehicle stabilizer apparatus and stabilizer actuator component thereof |
| 08/23/1989 | EP0328795A1 Overturning-preventing device for crane trucks and similar machines |
| 08/23/1989 | EP0214163B1 Chassis of a heavy vehicle, particularly a multiaxle moving crane |
| 08/23/1989 | CN2043235U Simple rotary position limiting device |
| 08/23/1989 | CN1034901A Light-building crane capable of being raised along with the building |
| 08/22/1989 | US4858978 Coupling arrangement for changing components on the block of a hoist |