Patents for F15B 11 - Servomotor systems without provision for follow-up action (16,384)
11/1987
11/12/1987DE3712635A1 Hydraulischer arbeitszylinder, insbesondere in im bergbau ueblichen stempeln Hydraulic cylinders, especially in the mining usual stamp
11/11/1987EP0244815A2 Hydraulic-pneumatic actuator for impact cutter
11/10/1987US4704947 Bidirectional fluid flow valve
11/03/1987US4703684 Vacuum control device for the displacement of an element between at least three positions
10/1987
10/27/1987US4702276 Assembly of connections for pneumatic jacks
10/27/1987US4702148 Control of the actuation of hydraulic consumers
10/27/1987CA1228515A1 Electropneumatic drive system for crust breaking devices and process for operating the same
10/20/1987US4700748 Pressure-referenced programmed flow control in a hydraulic valve
10/20/1987US4700733 Flow control valve
10/20/1987US4700612 Electropneumatic drive system for crust breaking devices and process for operating the same
10/14/1987CN86107115A Hydraulic apparatus with constant pressure
10/13/1987US4699402 Mounting board for fluid power components
10/13/1987CA1228064A1 Pipe propelling device
10/08/1987DE3611438A1 Pneumatic/hydraulic converter
10/08/1987DE3611244A1 Flow-control valve
10/07/1987EP0239848A2 Drive control for a hydraulic cylinder acting as a drive for piston pumps
10/06/1987US4697499 Dual tandem composite cylinder assembly
10/06/1987US4697498 Direction control valve fitted with a flow control mechanism
10/06/1987US4697419 Fast actuator
10/06/1987CA1227725A1 Load control system
09/1987
09/29/1987US4696383 Hydraulic clutch for motor vehicles, having creep-inhibiting feature
09/22/1987US4694858 Hydraulic control valve
09/22/1987US4694731 Load compensated valve
09/22/1987CA1227105A1 Hydraulic slide valve
09/16/1987EP0236750A2 Hydraulic system
09/16/1987EP0236742A1 Servo valve for pneumatic-pressure control
09/15/1987CA1226786A1 Load responsive system
09/10/1987DE3607138A1 Hydraulic system with a control device
09/09/1987EP0235761A2 Fluid control system
09/09/1987EP0163688B1 A pilot oil supply arrangement
09/01/1987US4690035 Emergency draining device for stopping pneumatic cylinders
09/01/1987US4689956 Drive system comprising an adjustable hydrostatic machine
08/1987
08/25/1987US4688470 Compensated fluid flow control valve
08/25/1987US4688381 Hydraulic control arrangement
08/25/1987US4688380 Control means for a drive system with impressed pressure
08/19/1987EP0232683A1 Hydraulic control system for working members of earth-moving machines with centralized braking of the actuators
08/13/1987DE3603630A1 Control arrangement for at least two hydraulic consumers fed by at least one pump
08/12/1987EP0231876A2 Hydraulic pressure control system
08/12/1987EP0231735A1 Synchronization device for a hydraulic multiple cylinder drive
08/12/1987CN86108883A Synchronous control device of multi-hydraulic-cylinder drive
08/11/1987CA1225291A1 Pressure medium actuated servomotor system
08/04/1987US4684332 Ratio pump and method
08/04/1987CA1224978A1 Integral valve and cylinder assembly for power steered marine drive
07/1987
07/30/1987DE3611710C1 Reversing device
07/23/1987DE3601643A1 Hydraulic control arrangement for the rapid motion of consumers
07/21/1987US4681021 Driving apparatus
07/16/1987WO1987004220A1 Method for reducing the piston speed, especially in the piston and cylinder assemblies of an excavating machine, and device for carrying out the method
07/14/1987US4679492 Compensated fluid flow control valve
07/07/1987US4678006 Electrically operated automatic transmission controller assembly
07/01/1987EP0227547A2 Hydraulic transmission
07/01/1987EP0227543A1 Twin-pressure actuator
06/1987
06/30/1987US4676323 Hydraulically operated percussive machine and an accumulator therefor
06/30/1987US4676140 Hydraulic control system
06/30/1987CA1223501A1 Fluid pressure system and valve therefor
06/24/1987EP0226125A2 Variable displacement pump system
06/24/1987EP0164347B1 A fluid actuator for stepwise regulation of valves
06/24/1987CN85108834A Control device for hydraulic motor
06/19/1987DE3643110A1 Directional control valve with loading indication
06/17/1987CN86108529A Dynamic transmission system
06/16/1987EP0225815A1 Tool for closing the production string of a well
06/16/1987EP0225397A1 Method and apparatus for producing intermittent loading of a specimen
06/11/1987DE3542824A1 Hydraulic differential pressure warning switch
06/10/1987EP0224478A1 Load sensing circuit of load responsive direction control valve.
06/03/1987EP0224156A2 Hydraulic system with a hydraulic motor and a pressure-operated valve
06/02/1987US4669363 Hydraulic priority control means for at least two servo motors
06/02/1987CA1222421A1 Multi-stage actuator
05/1987
05/27/1987EP0223568A2 Ratio pump
05/27/1987CN86107785A Motor seal protector valve
05/26/1987US4668171 Torque control device for an adjustable hydropump
05/26/1987US4667571 Hydraulic control system
05/26/1987US4667475 Fluid power apparatus for industrial robots and the like
05/21/1987DE3631281A1 Pneumatic/hydraulic feed unit with automatic leakage-oil compensation
05/21/1987DE3540416A1 Pneumatic cylinder with infinitely adjustable stroke and end-position damping acting on both sides
05/21/1987DE3539337A1 Pressure-medium-operable servo device for setting successive switching steps
05/20/1987EP0222735A1 Single-acting cylinder
05/19/1987US4665939 Priority control for hydraulic consumers
05/19/1987US4665801 Compensated fluid flow control valve
05/19/1987US4665699 Hydrostatic drives
05/13/1987EP0221852A2 Device for working relatively hard building materials
05/12/1987US4664017 Hydraulic control system and valve
05/12/1987US4663936 Load sensing priority system with bypass control
05/12/1987CA1221559A1 Control system for hydraulic operating fluid pressure
05/05/1987US4662606 Pipe propelling device
05/05/1987US4662601 Hydraulic valve means
05/05/1987US4662248 Hydraulic control system
05/05/1987US4662175 Fluid supply circuit for a hydrodynamic coupling
04/1987
04/28/1987US4660380 Hydraulic control arrangement
04/28/1987CA1221152A1 Hydraulic system with proportional control
04/23/1987DE3537130A1 Control arrangement for a working cylinder
04/23/1987DE3537124A1 Working cylinder
04/22/1987EP0219052A2 Hydraulic control device
04/21/1987US4658705 Control system for hydraulic fluid pressure
04/21/1987US4658629 Hydraulic, pneumatic, pneumatic-hydraulic or combined pneumatic-explosion press
04/08/1987EP0147392B1 Flow control valve assembly with quick response
04/02/1987DE3631844A1 Pneumatic drive, in particular for a welding electrode
04/02/1987DE3629752A1 Rolling motor and method of activating it
04/01/1987EP0216675A1 Coaxial multifunctional insertable cartridge valves, and their use in the control of a double effect actuator
03/1987
03/26/1987WO1987001749A1 Control circuit for positioning an earthmoving blade
03/25/1987EP0215764A2 A method and a device for regulating pressure fluid cylinders
03/25/1987EP0215096A1 Lifting device