Patents
Sitemap › B66 - Hoisting; Lifting; Hauling › B66F - Hoisting, lifting, hauling, or pushing, not otherwise provided for, e.g. devices which apply a lifting or pushing force directly to the surface of a load › B66F 3 - Devices, e.g. jacks, adapted for uninterrupted lifting of loads
Patents for B66F 3 - Devices, e.g. jacks, adapted for uninterrupted lifting of loads (6,643)
05/1982
05/18/1982US4330105 Crane type lifting assembly for heavy loads
05/18/1982US4330104 Hydraulic jack and stand combination with key and hinged handle
05/11/1982US4328951 Hydraulic lifting device
05/11/1982US4328885 Actuator activated switching mechanism
05/05/1982EP0051014A1 Device for continuously controlling the stroke of a piston of an actuator
04/1982
04/06/1982US4323141 Rail-mounted vehicle jack
03/1982
03/23/1982US4320607 Combination floor, jack and trailer assemblies
03/02/1982US4317505 Hydraulic apparatus for the operation of an elevator
03/02/1982CA1119046A1 Jack
02/1982
02/09/1982US4314691 Jack
02/09/1982US4314592 Tree felling system with cam-operated hydraulic check valve
01/1982
01/06/1982EP0043333A1 Method for the manufacture of a flexible tight cushion, and device for its realization
12/1981
12/29/1981US4307799 Linear actuator
11/1981
11/25/1981EP0040578A1 Pneumatic lift pad
10/1981
10/20/1981US4295635 Universal pneumatic bellows jack lifter
10/20/1981US4295634 Strut compressor
10/13/1981US4294067 Method and apparatus for doffing and donning bobbins in a spinning machine
09/1981
09/15/1981US4289300 Car jack
08/1981
08/26/1981EP0034152A1 A forklift truck
08/19/1981EP0033923A1 Electro-hydraulic control device for actuating the power lift of agricultural utility vehicles
08/18/1981US4284293 Adjustable stand
08/11/1981CA1106695A1 Hydraulic pumps
08/04/1981US4281820 Lifting jack for vehicles or the like
08/04/1981CA1106338A1 Hydrostatic adjusting device
07/1981
07/07/1981US4277052 Jacking apparatus
07/07/1981US4277050 Method of jacking up a vehicle, and jack therefor
07/07/1981CA1104551A1 Hydraulic jack
06/1981
06/30/1981US4275869 Air cushion lifting device
06/09/1981USRE30640 Vehicle lifting jack
06/02/1981US4270733 Cable racking system
05/1981
05/26/1981US4269543 Mobile, offshore, self-elevating (jack-up) unit leg/hull rigidification system
05/26/1981US4269392 Jack mechanism
05/19/1981CA1101402A1 Method of jacking up a vehicle and jack therefor
05/13/1981EP0028592A1 Transportation lifting truck
04/1981
04/21/1981US4262881 Bottle jack anti-bind structure for rectangular lift post
04/15/1981EP0026779A1 Lifting and shifting apparatus.
03/1981
03/11/1981EP0024939A2 A system for a jack-up rig unit for offshore use and a method of securing the support legs of such a unit
03/10/1981CA1097326A1 Jack post
03/05/1981WO1981000559A1 A forklift truck
02/1981
02/24/1981US4252215 Rescue device
02/24/1981CA1096337A1 Telescoping aerial lift
02/17/1981US4251055 Jack construction
02/17/1981CA1095842A1 Elevating device
02/03/1981US4248467 Lifting and lowering device for handling goods containers
01/1981
01/27/1981US4247082 Fluid jack and locking device
01/20/1981US4245808 Compact interlocking jack stand
01/07/1981EP0021623A1 Worm screw jack apparatus and method of making same
12/1980
12/10/1980EP0019617A1 A breaking or lifting device
12/09/1980US4238115 Jacking device
12/09/1980US4238113 Jacking device
11/1980
11/26/1980EP0019284A1 Lifting device with two telescoping screw spindles
11/25/1980US4235542 Self stowing vehicle leveling hydraulic jack
11/04/1980US4231550 Jack adapter for front end alignments
10/1980
10/29/1980EP0017765A1 Hydraulic lifting device
10/16/1980WO1980002172A1 Lifting and shifting apparatus
10/15/1980EP0016921A1 Telescopic device
09/1980
09/30/1980CA1086696A1 Diffusion pumping apparatus
09/23/1980US4224363 Motor jacking apparatus
09/09/1980US4221363 Adjustable jack
09/09/1980US4221362 Jack post
09/02/1980CA1084861A1 Lift
08/1980
08/19/1980CA1084041A1 Tree felling ram with safety check valve
08/06/1980EP0014070A1 Screw jack
07/1980
07/29/1980CA1082680A1 Snap roller
07/22/1980US4213509 Hydrostatic setting apparatus for support of loads
06/1980
06/10/1980US4206906 Jack
06/03/1980CA1078813A1 Fluid operated ram for felling trees
05/1980
05/20/1980US4203577 Car jacks
05/13/1980US4202514 Hydraulic jack device
05/06/1980CA1077015A1 Inner tube for screw jack
04/1980
04/29/1980US4200419 Assembly for positioning portable structures
04/29/1980CA1076539A1 Method of and apparatus for positioning and supporting a machine
04/01/1980US4195818 Jacking device
03/1980
03/25/1980US4194726 Concrete lifter
03/25/1980US4194725 Vehicle jack
03/11/1980CA1073443A1 Chain link fence straightener
03/04/1980CA1072943A1 Interlocking jack stand
03/04/1980CA1072940A1 Electrically operated retractable jack
02/1980
02/26/1980US4190135 Gear rack hoist
02/26/1980US4189821 Method of manufacturing screw jack tubes
02/26/1980CA1072536A1 Jacking device
02/19/1980US4189128 Manual lifter and mover assembly
02/06/1980EP0007592A1 Limit switch device for a lifting apparatus
01/1980
01/15/1980US4183511 Work holder for adjustably supporting a workpiece
01/15/1980CA1069879A1 Hydrostatic load relief for lifting spindles
12/1979
12/25/1979CA1068675A Double parallelogram jack
12/18/1979US4179012 Stairway-type passenger lift
12/04/1979US4176824 Lifting apparatus
11/1979
11/27/1979US4175644 Scissors lift
11/13/1979US4174095 Hydraulic jack
11/06/1979US4173330 Hydrostatic load relief for lifting spindles
11/06/1979US4173329 Jack for positioning and supporting a machine
10/1979
10/30/1979CA1065230A1 Bladder for force transmission apparatus
10/16/1979CA1064466A1 Hydraulic hand jack with needle release valve
10/16/1979CA1064465A1 Hydraulic hand jack
10/04/1979WO1979000753A1 A breaking or lifting device
10/02/1979US4169581 Trailer stabilizing jack
09/1979
09/11/1979CA1134075B Pneumatic flat pads
09/11/1979CA1062379A1 Pneumatic flat pads
08/1979
08/14/1979CA1060487A1 Snubber for one end lift jacks
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