| Patents for B66F 1 - Devices, e.g. jacks, for lifting loads in predetermined steps (535) |
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| 04/17/1991 | EP0423029A1 Device and method for lifting and moving objects |
| 04/10/1991 | CN1050595A Hydraulic assembly and hydraulic line |
| 04/03/1991 | EP0419810A1 Power unit |
| 01/23/1991 | CN2069849U Improved anti-falling device of telescope jack |
| 12/11/1990 | CA1277654C Snowmobile stand |
| 11/22/1990 | EP0397878A1 Load-lifting device |
| 11/10/1990 | CA2003341A1 Alignment and release mechanism for two-part jack system |
| 10/09/1990 | US4961562 Apparatus for engaging beams |
| 10/02/1990 | US4960264 Alignment and release mechanism for two-part jack system |
| 08/29/1990 | CN2061168U Multi-cylinder spherical hinge climbing equipment with floating wedging block single climbing boom |
| 06/14/1990 | WO1990006276A1 Load-lifting device |
| 06/05/1990 | US4930750 Apparatus for lifting tanks |
| 05/08/1990 | US4923174 Apparatus for bi-directionally moving and placing large and heavy objects |
| 04/10/1990 | US4915281 Arrangement for a method of converting a stepwise translation movement into a continuous translation movement |
| 03/13/1990 | US4907491 Extended-travel actuator with clamps on rod and cylinder end for clamping central rod |
| 02/14/1990 | CN2052763U Multipurpose life type instrument box |
| 12/13/1989 | CN2049222U Automatic lock device for hydraulic shear's fork type elevatingtable |
| 06/29/1989 | DE3742296A1 Lifting appliance for heavy loads |
| 06/15/1989 | DE3838503A1 Device for moving loads |
| 04/18/1989 | CA1252690A1 Power hydraulic gear |
| 03/01/1989 | CN2033397U Air cushion device for mine tower pre-filding and moving situation |
| 02/28/1989 | US4807851 Process for lifting tanks |
| 12/27/1988 | US4793439 Apparatus for climbing trees, poles and the like and being remotely controlled from ground elevation |
| 11/30/1988 | EP0292871A1 Device for lifting and supporting stacked heavy-weight bodies |
| 11/30/1988 | CN88202464U Automatic elevating table for containerizing goods |
| 10/25/1988 | CA1243636A1 High strength bucket |
| 07/19/1988 | USRE32715 Apparatus for jacking up and supporting a structure |
| 05/03/1988 | CA1236080A1 Heavy duty pump jack |
| 02/09/1988 | CA1232600A1 Mechanical lifting jack |
| 01/27/1988 | CN87201482U Sliding and toppling prevention device for high type roof fitting pit prop |
| 12/26/1987 | CN87201551U Built-up type high strength gasag combined with inner tube and tyre cover |
| 12/15/1987 | US4712772 Power hydraulic gear |
| 10/06/1987 | US4697788 Means for automatically releasing a jack system |
| 09/24/1987 | WO1987005590A1 Device for shifting a heavy load |
| 07/07/1987 | US4677936 Progressively movable holding device |
| 06/24/1987 | CN86206415U Hydraulic measuring jack |
| 05/14/1987 | DE3636589A1 Hydraulic hoisting device |
| 05/06/1987 | EP0220192A1 Movable support system |
| 02/25/1987 | CN85204834U Lever-type jack |
| 02/10/1987 | US4641813 Dual automobile jack for consumer use |
| 01/15/1987 | DE3523944A1 Apparatus for moving heavy loads, e.g. parts of a structure, scaffolding or the like |
| 01/07/1987 | EP0207743A2 Ratchet operated jacks |
| 01/06/1987 | US4634101 Convertible rope pulling and walking machine |
| 11/25/1986 | US4624447 Hydraulic high lift jack |
| 10/07/1986 | US4615508 Apparatus for skidding a load on a support |
| 09/17/1986 | EP0194866A1 Improvements in jacks |
| 07/09/1986 | CN85203958U Inner-tube-type high strength gasbag |
| 07/01/1986 | US4597471 For traveling up and down a pole |
| 06/10/1986 | US4593884 Continuous-advance hydraulic cable mover |
| 05/20/1986 | US4589630 Dual automobile jack for consumer use |
| 03/27/1986 | WO1986001791A1 Movable support system |
| 02/25/1986 | US4572481 Releasable clamping assembly for use with hydraulic jacking apparatus |
| 02/04/1986 | US4568064 Mechanical lifting jack |
| 01/14/1986 | US4564173 Tree push |
| 01/14/1986 | US4564172 Method of using a hydraulic power unit to control a mechanical jack |
| 12/17/1985 | US4558846 Mobile power unit for a jacking system |
| 11/19/1985 | US4553727 Extendible jack stand adapted for remote control |
| 11/12/1985 | US4552337 Carpenter jack |
| 11/07/1985 | WO1985004933A1 Hydraulic actuating mechanism |
| 10/22/1985 | CA1195716A1 Pump jack poles |
| 10/09/1985 | EP0157073A1 Gripping member for jack |
| 10/01/1985 | US4544135 Rig skidding system |
| 09/03/1985 | US4538796 Dolly |
| 08/20/1985 | US4535971 Propulsive-force jack installation for producing the continuous movement of an oblong object in the direction of its axis, and/or for moving an element along said object |
| 03/26/1985 | US4506867 Jacking apparatus having a fast repositioning stroke |
| 03/20/1985 | EP0134524A2 Improvements in supports for structures and structures incorporating such supports |
| 10/30/1984 | CA1177053A2 Jacking apparatus |
| 10/23/1984 | US4478389 Jacking apparatus adjustable for alignment variations |
| 07/31/1984 | US4462569 Apparatus for jacking up and supporting a structure |
| 07/24/1984 | CA1171401A1 Propulsive-force jack installation for producing the continuous movement of an oblong object in the direction of its axis and/or for moving an element along said object |
| 05/08/1984 | US4446945 Brace for securing a pole to support surface |
| 02/21/1984 | US4432435 Clamping device |
| 01/31/1984 | CA1161424A1 Lifting jack |
| 01/24/1984 | US4427181 Device for lifting loads, especially heavy loads, in a stepwise manner by means of one or several jacks |
| 12/27/1983 | CA1159439A1 Mechanized jack stand |
| 06/29/1983 | EP0082677A2 Jacking apparatus and force transmitting methods |
| 06/29/1983 | EP0082676A2 Jacking apparatus and methods of effecting repositioning strokes thereof |
| 06/22/1983 | EP0081960A1 Support jack |
| 05/10/1983 | US4382580 Lifting and shifting apparatus |
| 05/10/1983 | US4382488 Pump jack poles |
| 04/12/1983 | US4379546 Lifting jack |
| 03/23/1983 | EP0026779B1 Lifting and shifting apparatus |
| 03/22/1983 | CA1143364A1 Device for lifting loads, especially heavy loads, in a stepwise manner by means of one or several jacks |
| 03/01/1983 | CA1142164A1 Jacking apparatus |
| 02/01/1983 | CA1140527A1 Jacking device |
| 12/21/1982 | CA1138018A1 Builders scaffolding |
| 11/17/1982 | EP0064673A2 Apparatus for jacking up and supporting a structure |
| 09/07/1982 | US4348007 Gripper system for moving drilling rigs |
| 06/23/1982 | EP0054477A1 Motorized installation with jacks for producing the continuous movement of an oblong object in the direction of its axis and/or for moving an element along this object |
| 06/08/1982 | US4333634 Gripper assembly for moving drilling rigs |
| 05/11/1982 | US4328951 Hydraulic lifting device |
| 03/02/1982 | USRE30876 Jacking assembly |
| 10/07/1981 | EP0037298A1 Step-by-step jack with safety device |
| 08/04/1981 | US4281820 Lifting jack for vehicles or the like |
| 07/07/1981 | US4277052 Jacking apparatus |
| 04/15/1981 | EP0026779A1 Lifting and shifting apparatus. |
| 01/27/1981 | US4247083 Wall lifter |
| 12/23/1980 | US4240611 Belt tightening apparatus |
| 12/09/1980 | US4238115 Jacking device |
| 10/29/1980 | EP0017765A1 Hydraulic lifting device |