| Patents for B66F 1 - Devices, e.g. jacks, for lifting loads in predetermined steps (535) |
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| 03/14/2002 | WO2002020919A1 Improved self-raising platform assembly |
| 03/13/2002 | CN2481690Y Vertical lifting device for work high above ground |
| 03/11/2002 | CA2317987A1 Improved self-raising platform assembly |
| 02/07/2002 | US20020014618 Jack accessory |
| 02/06/2002 | CN2475632Y Folding lift-changing jackscrew |
| 04/24/2001 | US6220573 Method and apparatus for hoisting a vehicular clutch |
| 01/23/2001 | US6176468 Safety locking mechanism for a mechanical lifting jack |
| 01/16/2001 | US6174110 Shoring leg |
| 12/26/2000 | US6164626 Apparatus for holding a workpiece |
| 12/05/2000 | US6155536 Hydraulic staging jack |
| 09/28/2000 | DE19912448A1 Transport device for raising or lowering heavy loads has grippers and grip release device which is synchronized with movement of piston of lifting mechanism |
| 09/06/2000 | CN2394891Y Feed-through climibing rod lift jack |
| 06/28/2000 | CN2384931Y Flat-anchor front-retained lifting jack |
| 06/14/2000 | EP1007467A1 Self erecting scaffolding |
| 05/24/2000 | CN1254322A Platform raising system on scaffold and constitution of scaffold thereof |
| 03/28/2000 | US6041491 Rod attaching/detaching device for a lifting jack and method of coupling suspending rods |
| 03/16/2000 | WO2000014007A1 A jack |
| 02/22/2000 | US6027295 Lifting system for manufactured and mobile homes |
| 02/22/2000 | US6027100 Apparatus for supporting modular furniture |
| 02/09/2000 | CN2362830Y Mechanical synchronous shearing type lifting machine |
| 02/08/2000 | US6022002 Apparatus for the assisted handling of a load |
| 01/18/2000 | US6015135 Method for supporting modular furniture |
| 11/09/1999 | US5980160 Apparatus and method for a modular lifting and shoring system |
| 11/09/1999 | US5979876 Jack bar quick release |
| 10/20/1999 | EP0950633A2 Safety locking mechanism for a mechanical lifting jack |
| 10/13/1999 | CN2343144Y Foldable operating handle for scissor jack |
| 10/13/1999 | CN2343143Y Telescopic operating handle for scissor jack |
| 09/07/1999 | US5947449 Apparatus for lifting or supporting modular furniture |
| 08/19/1999 | WO1999041509A1 Telescopic support |
| 08/12/1999 | DE19904473A1 Ground based support rack especially for telescopic rods |
| 08/04/1999 | CN2331647Y Jack |
| 08/03/1999 | US5931446 For climbing and descending a pole |
| 07/29/1999 | DE19805474C1 Telescopic support strut for tent |
| 07/06/1999 | US5918860 Uplift assembly |
| 06/09/1999 | EP0921254A1 A shoring leg |
| 04/09/1999 | CA2249757A1 Lock for preventing movement of a rod |
| 03/30/1999 | CA2223736C Apparatus for lifting or supporting modular furniture |
| 03/25/1999 | WO1999014152A1 Hydraulic staging jack |
| 03/24/1999 | CN1211963A Lifting jack, method of coupling suspending rods and lift control method |
| 01/20/1999 | CN2304647Y Hydraulic jack with automatic resitting device |
| 11/18/1998 | CN2297436Y Multifunctional support for elevator |
| 11/12/1998 | WO1998050301A1 Self erecting scaffolding |
| 09/15/1998 | US5806836 Track jack apparatus |
| 04/29/1998 | EP0838428A1 Apparatus for the assisted handling of a load |
| 04/15/1998 | CN2278683Y Quick rise-and-fall jack and its cranking bar |
| 03/03/1998 | US5722798 System for raising and supporting a building |
| 03/03/1998 | US5722639 Multistage wedge-shaped jack apparatus |
| 10/23/1997 | WO1997038933A1 Lifting jack, method of coupling suspending rods and lift control method |
| 05/20/1997 | US5630482 Climbing device, in particular for a climbing scaffold |
| 04/22/1997 | US5622355 Lifting and supporting apparatus |
| 12/03/1996 | US5579865 Scaffold |
| 09/25/1996 | EP0733582A1 Method and device to raise harbour installation like a container portal |
| 08/27/1996 | CA2061864C Device for moving large and heavy loads |
| 07/24/1996 | EP0681635B1 Climbing device, in particular for a climbing scaffold |
| 07/18/1996 | DE19501181A1 Hoist for ceiling girders, using clamping seats |
| 06/05/1996 | CN2228480Y Front clamping type jack |
| 06/05/1996 | CN2228473Y Plug-in type refuse container |
| 05/22/1996 | CN2227629Y Domestic plastic refuse pail with slide handle |
| 05/15/1996 | CN2227098Y Easy-used refuse receptacle |
| 05/15/1996 | CN2227097Y Dustbin |
| 03/27/1996 | CN1031390C Lifting level-regulating system for vertical oil-storage steel tank |
| 03/05/1996 | US5496013 Device for moving large and heavy loads |
| 11/15/1995 | EP0681635A1 Climbing device, in particular for a climbing scaffold. |
| 08/31/1995 | WO1995023265A1 Modular scaffold assembly |
| 05/23/1995 | US5417406 Method and apparatus for lifting objects |
| 05/09/1995 | US5413312 Jack device for positioning planks or other articles on framework |
| 03/30/1995 | WO1995008504A1 Door jacking device |
| 03/15/1995 | CN2191855Y Special purpose jack for small size tractor |
| 03/14/1995 | US5397103 Tank lifting methods |
| 02/14/1995 | US5388383 Structural member jacking device |
| 01/31/1995 | US5385335 Method for lifting modular furniture |
| 01/25/1995 | CN1097713A Vertical steel oil tank lifting level-adjusting system |
| 01/10/1995 | US5380056 Vertical hydraulic hoist device |
| 01/10/1995 | US5379974 Alignment and locking mechanism for extendible jack stand |
| 01/10/1995 | CA2096854C Single-roller jack for latching two elements articulated together |
| 11/29/1994 | US5368125 Platform raising system in scaffolding |
| 10/11/1994 | US5354034 For lifting a car during the changing of a tire |
| 08/04/1994 | WO1994017265A1 Climbing device, in particular for a climbing scaffold |
| 05/11/1994 | WO1994010078A1 Tank lifting methods |
| 05/11/1994 | DE4237730A1 Clamping device for hydraulic pusher system - useful for sideways displacement of heavy load, e.g. bridge |
| 02/23/1994 | CN2157174Y Jack |
| 01/05/1994 | DE4221869A1 Linear bar-indexing mechanism - has pre-loaded sliding and holding clamps released and engaged alternately by drive mechanism |
| 12/21/1993 | US5271604 Support structure for lifting tanks with roof column supports |
| 12/01/1993 | CN1022946C Hydraulic assembly |
| 11/30/1993 | US5265936 Locking device for locking two elements that are articulated relative to one another |
| 11/18/1993 | EP0569612A1 Hydraulic movement method and object moving hydraulic system |
| 11/16/1993 | US5261643 Apparatus for lifting modular furniture |
| 09/02/1993 | WO1993016951A1 Device for moving large and heavy loads |
| 09/01/1993 | EP0558354A1 Apparatus for lifting modular furniture |
| 08/03/1993 | US5232202 Tank lifting methods |
| 05/18/1993 | US5211114 Offshore structure pulling system |
| 02/02/1993 | US5183235 Apparatus for aligning and releasing a two-part jack system |
| 01/13/1993 | EP0522939A1 Linear actuator, having one roller, for locking two interconnected elements |
| 06/17/1992 | DE4040122A1 Lifting system for installing gantry cranes - has gantry supported by rotatable lifting beam climbing up sectional column mounted on transportable base |
| 05/12/1992 | US5112070 Dual wheel puller/dolly |
| 04/21/1992 | US5105622 Hydraulic unit for driving a tool |
| 12/24/1991 | US5074383 Hoisting machine |
| 11/20/1991 | CN2088999U Pneumatic bag type jack |
| 08/07/1991 | CN1053595A 千斤顶 Jack |
| 04/24/1991 | CN2075642U Hoisting air bag |