| Patents for B66F 3 - Devices, e.g. jacks, adapted for uninterrupted lifting of loads (6,643) |
|---|
| 07/31/1979 | US4162873 Extensible boom lift |
| 07/10/1979 | US4160538 Leg structure for jack-up platform with single point jacking |
| 07/03/1979 | CA1057625A1 Hydraulic apparatus for raising and lowering an impeller shaft |
| 06/26/1979 | CA1057164A1 Stop ring arrangement for telescoping tubular members |
| 06/12/1979 | CA1056359A1 Support of variable length |
| 06/12/1979 | CA1056122A1 Method of lifting or lowering an object by means of a plurality of so-called climbing jacks |
| 05/01/1979 | CA1053655A1 Power aggregate |
| 05/01/1979 | CA1053540A1 Hydraulic jacks |
| 04/24/1979 | US4150813 Jack system for vehicle |
| 04/10/1979 | US4148511 Lifting and lowering device for handling goods container |
| 04/10/1979 | US4148461 Self-aligning scissor type jack |
| 04/03/1979 | US4147267 Equipment for lifting and depositing cabins, shelters, replacement constructions and the like |
| 04/03/1979 | CA1051815A1 Lifting and lowering device for handling goods containers |
| 03/27/1979 | US4146208 Movable base jack |
| 03/27/1979 | CA1051415A1 Pneumatic vehicle jack |
| 03/20/1979 | US4144713 Patient lifting device |
| 03/13/1979 | US4143854 Jacking device |
| 03/06/1979 | US4142710 Automatic extension control system for jacking device |
| 03/06/1979 | US4142369 Multiple speed hoisting system with pressure protection and load control |
| 02/27/1979 | US4141526 Interlocking jack stand |
| 02/13/1979 | CA1048378A1 Double-acting hydraulic cylinder having two pistons arranged for coaxial movement relative thereto |
| 02/06/1979 | US4137784 Electromechanical equivalent of fluid powered cylinder |
| 01/30/1979 | CA1047369A1 Hydraulic jack cushioning apparatus |
| 01/25/1979 | WO1979000022A1 Hydraulic jacking method and apparatus |
| 01/24/1979 | EP0000443A1 Hydraulic jack and patient lifting device using it |
| 01/23/1979 | CA1047022A1 Hydraulic jack with mechanical locking device |
| 01/09/1979 | CA1045944A1 Multiple speed hoisting system with pressure protection and load control |
| 12/26/1978 | US4131263 Fixed limit lifting jack |
| 12/26/1978 | US4130991 Hydraulic pumps |
| 12/26/1978 | US4130923 Apparatus for locating and moving heavy units |
| 12/19/1978 | US4130178 Elevating device |
| 12/19/1978 | CA1044689A1 Apparatus for lifting the bolster of a railway car truck |
| 12/12/1978 | US4129286 Lifting jack for vehicles |
| 11/28/1978 | US4127343 Inner tube for screw jack |
| 11/21/1978 | CA1042674A1 Lifting apparatus |
| 10/10/1978 | US4119298 Tree felling ram with safety check valve |
| 10/03/1978 | CA1039829A1 Article exchanging apparatus |
| 10/03/1978 | CA1039676A1 Carcass transfer method and device |
| 09/19/1978 | US4114854 Scissors lift work platform |
| 09/19/1978 | CA1038852A1 Jack-pump device |
| 09/12/1978 | US4113274 Pneumatic lift for single axle trailer |
| 09/12/1978 | US4113234 Hydraulic jacks |
| 09/05/1978 | CA1037943A1 Lifting jack |
| 08/22/1978 | CA1036906A1 Cushioning device for a hydraulic jack |
| 08/01/1978 | US4103910 Piston-cylinder seal assembly |
| 08/01/1978 | US4103869 Vehicle levelling and stabilizing system |
| 07/18/1978 | US4100714 Method of positioning and supporting a machine |
| 06/27/1978 | US4096785 Elastic column of adjustable length |
| 06/20/1978 | US4095677 Hoisting apparatus |
| 06/13/1978 | US4094484 Balanced portable pedestals |
| 06/06/1978 | US4093182 Vehicle jack |
| 06/06/1978 | US4093181 Powered vehicle jack |
| 05/30/1978 | US4092012 Ratchet type quick feeding mechanism for automobile pantograph jack |
| 05/23/1978 | US4090689 Appartus for supporting and transporting gymnastic equipment |
| 05/23/1978 | US4090431 Bladder for force transmission apparatus |
| 05/16/1978 | US4089426 Apparatus for aligning pre-assembled parts |
| 05/02/1978 | US4087076 Pneumatic jack |
| 04/18/1978 | US4084830 Levelling and stabilization system for a vehicle |
| 04/18/1978 | US4084275 Cover for a lifting device and method of utilizing same |
| 04/11/1978 | US4083530 Elongatable telescoping support |
| 03/21/1978 | US4079915 Hydro-power jack |
| 03/14/1978 | US4078383 Hydraulic hand jack with needle release valve |
| 03/07/1978 | US4077608 Hydraulic hand jack |
| 02/28/1978 | US4076215 Electrohydraulic drawing apparatus, particularly a hoist |
| 02/28/1978 | US4076214 Double-acting jack having a position stop |
| 02/21/1978 | US4074586 Traveling nut assembly with low friction and automatic brake |
| 02/14/1978 | US4073475 Chain link fence straightener |
| 02/07/1978 | US4072086 Driving assembly |
| 01/31/1978 | US4070807 Aerial lift |
| 01/17/1978 | US4068825 Double parallelogram jack |
| 01/17/1978 | US4068823 Apparatus for lifting the bolster of a railway car truck |
| 01/17/1978 | US4068534 Vertical lift assembly |
| 01/10/1978 | US4067544 Pneumatic flat pads |
| 01/10/1978 | US4067543 Electrically operated retractable jack |
| 12/27/1977 | US4065112 Hydraulic jack cushioning apparatus |
| 12/06/1977 | US4061310 Lifting cushion for the lifting, supporting and moving of heavy objects |
| 11/29/1977 | US4060221 Double-acting hydraulic cylinder having two pistons arranged for coaxial movement relative thereto |
| 10/25/1977 | US4055329 Scissors jack |
| 10/11/1977 | US4053138 Method of lifting or lowering an object by means of a plurality of so-called climbing jacks |
| 09/27/1977 | US4050674 Hydraulic jack |
| 09/27/1977 | US4050671 Door hanger device |
| 09/27/1977 | US4050256 Mine roof support control systems |
| 09/20/1977 | US4048800 Hydraulic jack having rotating pump handle |
| 09/06/1977 | US4046354 Apparatus for positioning and supporting a machine |
| 09/06/1977 | US4046352 Hydraulic apparatus for raising and lowering an impeller shaft |
| 09/06/1977 | US4045855 Truck bolster lifting device |
| 08/30/1977 | US4045000 Rack jack |
| 07/26/1977 | US4037822 Scissors jack |
| 07/19/1977 | US4036474 Portable jack |
| 07/19/1977 | US4036472 Pneumatic lifting device |
| 06/28/1977 | US4032020 Article exchanging apparatus |
| 06/21/1977 | US4030701 Pneumatic vehicle jack |
| 06/21/1977 | US4030697 Vehicle jacks |
| 05/31/1977 | US4026524 Fluid operated ram for felling trees |
| 05/31/1977 | US4026523 Hydraulic jacks |
| 05/24/1977 | US4025054 Arms for pantograph jack |
| 05/24/1977 | US4025053 Screw actuated scissor jack with a self adjusting bearing surface |
| 05/10/1977 | US4022429 Lifting apparatus |
| 05/03/1977 | US4021018 Jacking device |
| 04/05/1977 | US4015824 Jack safety stop |