| 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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| 09/09/1980 | CA1085337A1 Articulate conveyor system for tower crane |
| 09/02/1980 | US4220216 Weld joint hardbar main frame |
| 08/26/1980 | US4219121 Safety system for use in association with material handling equipment |
| 08/26/1980 | CA1084453A1 Cargo handling apparatus |
| 08/26/1980 | CA1084452A1 Twin type slewing crane |
| 08/21/1980 | WO1980001682A1 Adjustable double link mounting |
| 08/19/1980 | US4217987 Actuator for telescopic boom |
| 08/19/1980 | CA1084037A1 Stabilizer assembly |
| 08/12/1980 | US4216947 Radiator hoist and positioner |
| 08/12/1980 | US4216941 Yoke hoist for use with pickup truck |
| 08/12/1980 | US4216895 Method of forming hollow boom |
| 08/12/1980 | US4216870 Crane mounting |
| 08/12/1980 | US4216869 Industrial crane |
| 08/12/1980 | US4216868 Optical digital sensor for crane operating aid |
| 08/07/1980 | WO1980001554A1 Weld joint hardbar main frame |
| 08/05/1980 | US4215972 Transfer mechanism employing swingable arm formed as a parallelogram linkage |
| 08/05/1980 | US4215851 System for active compensation of unwanted relative movements, preferably during loading of cargo |
| 07/29/1980 | US4214665 Truck mounted railroad crane boom section |
| 07/29/1980 | CA1082652A1 Material handling machine |
| 07/29/1980 | CA1082649A1 Utility crane |
| 07/22/1980 | US4213727 Drum handling apparatus |
| 07/15/1980 | US4212404 Device for lifting crane boom |
| 07/15/1980 | CA1081662A1 Counterbalanced tower crane |
| 07/09/1980 | EP0013058A1 Lifting apparatus and cutting device for same |
| 07/08/1980 | US4212006 Crane load alarm with compensation for direction of rope movement |
| 07/08/1980 | US4211332 Color coded boom and chart system |
| 07/08/1980 | CA1081169A1 Hollow boom construction and method of forming boom |
| 07/01/1980 | US4210219 Undercarriage for adverse terrain vehicle |
| 07/01/1980 | CA1080668A1 Extensible boom |
| 06/24/1980 | US4208847 Lateral adjustment structure for telescoping boom assembly |
| 06/17/1980 | US4207828 Stabilizing system for a crane vessel |
| 06/17/1980 | CA1079692A1 Hydraulic winch system for pivoting a cargo boom |
| 06/17/1980 | CA1079691A1 Pipe laying crane |
| 06/03/1980 | US4205826 Lifting and supporting apparatus for a tower crane |
| 06/03/1980 | CA1078810A1 Outrigger beam and jack construction |
| 05/27/1980 | US4204664 Winch mechanism for crane |
| 05/27/1980 | US4204603 High-capacity crane with counter-weight device |
| 05/13/1980 | US4202453 Articulated mine service vehicle |
| 05/06/1980 | US4201511 Device for handling containers |
| 05/06/1980 | US4201305 Rotatory crane with plural jibs |
| 04/29/1980 | US4200423 Storable boom attachment for a construction machine |
| 04/29/1980 | US4200162 Traveling gantry |
| 04/22/1980 | US4199299 Material handling apparatus for use in a mine |
| 04/22/1980 | CA1076068A1 Loading apparatus with extension boom (telescopic boom) and with hydraulic lines carried by the boom |
| 04/16/1980 | EP0009958A1 Combination crane |
| 04/15/1980 | US4197953 Double slewing crane construction |
| 04/08/1980 | US4196816 Heavy duty crane |
| 04/08/1980 | US4196815 Twin-type slewing crane |
| 04/08/1980 | US4196814 Vertical telescoping lower crane |
| 04/01/1980 | US4195741 Truck mounted railroad crane hydraulic swivel means |
| 04/01/1980 | US4195740 Lift crane support system |
| 03/25/1980 | US4194863 Big bale loader |
| 03/25/1980 | US4194639 Truck mounted crane and method of constructing same |
| 03/25/1980 | US4194638 Ring supported tower crane |
| 03/25/1980 | US4194253 Person-lifting device |
| 03/18/1980 | US4193505 Arrangement in a hydraulically operated crane |
| 03/11/1980 | US4192110 Assembly positioning a crane on a platform installed in the sea |
| 03/11/1980 | CA1073277A1 Stabilizing system on a semi-submersible crane vessel |
| 03/04/1980 | US4191301 Rotation limiter |
| 02/26/1980 | US4190233 Jack |
| 02/20/1980 | EP0008210A1 Crane operating aid |
| 02/12/1980 | US4187949 Derrick crane with wide horizontal swinging range of boom |
| 02/12/1980 | CA1071584A1 Collapsible crane backhitch and overload signal system |
| 02/06/1980 | EP0007816A1 Method and apparatus for aiding the operation of a crane |
| 02/05/1980 | US4186839 Crane for handling fireplace or wood stove logs |
| 01/24/1980 | WO1980000076A1 Crane operating aid with operator interaction |
| 01/22/1980 | US4185280 Method of and apparatus for monitoring or controlling the operation of a boom-type crane or the like |
| 01/22/1980 | US4184600 Method for removing a bearing assembly of a pedestal crane and a removable bearing assembly for a pedestal crane |
| 01/15/1980 | US4183712 Device in loading cranes |
| 01/15/1980 | US4183511 Work holder for adjustably supporting a workpiece |
| 01/15/1980 | US4183440 Extensible boom |
| 12/25/1979 | US4180170 Rotary tower crane for construction purposes with a distributor device for concrete |
| 12/11/1979 | US4178591 Crane operating aid with operator interaction |
| 12/11/1979 | US4177869 Swivel joint for a vehicle |
| 12/11/1979 | CA1067863A1 Arrangement in a hydrautically operated crane |
| 12/11/1979 | CA1067862A1 Method and apparatus for extending a boom assembly |
| 12/11/1979 | CA1067861A1 Telescopic boom for mobile crane |
| 12/04/1979 | US4176824 Lifting apparatus |
| 11/27/1979 | US4175899 Lifting device |
| 11/20/1979 | CA1066647A1 Gondola car loader |
| 11/15/1979 | WO1979000915A1 A low-profile crane without topping tower |
| 11/13/1979 | CA1066233A2 Fly and jib assembly for crane |
| 11/13/1979 | CA1066083A1 Calibration of crane load indicating arrangement |
| 11/06/1979 | US4173331 Method and arrangement for staying climb rods for co-operation with so-called climbing jacks |
| 11/06/1979 | CA1065804B Truck mounted hoist |
| 11/06/1979 | CA1065803A1 Lift truck for big containers |
| 10/30/1979 | US4172688 Device for anti-rolling signalling for cable laying tractors |
| 10/30/1979 | US4172529 Crane |
| 10/23/1979 | US4171598 Hollow boom construction |
| 10/23/1979 | US4171597 Crane boom and telescopic section for it |
| 10/17/1979 | EP0004818A2 Tackle composition detector of a lifting device |
| 10/16/1979 | US4170854 Joint between the lower portion and the main portion of a loading crane post and a method of providing such a joint |
| 10/09/1979 | US4170309 Counterbalanced tower crane |
| 10/09/1979 | US4170291 Articulate conveyor system for tower crane |
| 10/09/1979 | CA1063977A1 Boom crane with double downward-articulation for close-coupling of loads |
| 10/02/1979 | US4169535 Crane |
| 10/02/1979 | US4169338 Telescopic boom |
| 09/25/1979 | US4168781 Crane |
| 09/18/1979 | US4168130 Apparatus for placing paving elements |
| 09/18/1979 | US4168008 Telescopic crane boom having corrugated boom sections |