Patents
Patents for F15B 21 - Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass (10,959)
06/2005
06/15/2005EP1540191A1 Hydraulically controlled valve comprising at least one hydraulic drive unit
06/15/2005EP1330610B1 Valve-controlled fluidic actuator system
06/15/2005CN1206464C Hydraulic oil cylinder with differential pressure triggering reversing control structure
06/14/2005US6904937 Switchable fluid control valve system
06/09/2005WO2005052385A1 Power system and work machine using same
06/09/2005WO2005052384A1 Power system and work machine using same
06/09/2005WO2005052268A1 Hydraulic control system
06/09/2005DE10352037A1 Clamping device for irregularly shaped work-piece, comprising cushion filled with fluid hardening under magnetic influence
06/02/2005DE19931208B4 Geschlossenes hydraulisches Betätigungssystem Closed-loop hydraulic actuation system
06/02/2005DE10349664A1 Hydraulic brake system for e.g. passenger car, has sensor sending measured temperature value of brake wheel cylinder to control system that activates circulation via pump and is regulated via valve when value exceeds threshold
06/02/2005DE102004052264A1 Hydraulikkreis für einen hydraulischen Zylinder Hydraulic circuit for a hydraulic cylinder
06/01/2005EP1536071A1 Hydraulic driving system of construction machinery
06/01/2005CN1204036C Reduplicative positioning hydraulic machine control device
05/2005
05/31/2005US6901315 Device for controlling a hydraulic actuator
05/31/2005US6899206 Air cylinder with high frequency shock absorber and accelerator
05/31/2005US6898932 Hydraulic driving unit
05/26/2005WO2005047710A1 Hydraulic distributor comprising an input with a scanning valve
05/26/2005US20050109026 Open hydraulic circuit including a relief valve device
05/25/2005EP1533675A1 Method and device for heating the control gas for a pneumatic regulator of a gas pressure regulator
05/25/2005EP1532031A1 Master cylinder
05/25/2005EP1203161B1 Security valve for a press
05/25/2005DE102004052269A1 Hydraulikzylinder Hydraulic cylinder
05/25/2005DE10124365B4 Vorrichtung und Verfahren zum Positionieren und Fixieren eines Objektes Apparatus and method for positioning and fixing an object
05/24/2005CA2326985C Hydraulic valve for a camera dolly
05/19/2005WO2004058550A8 Hydraulic regenerative braking system for a vehicle
05/19/2005WO2004033806A8 A method and a device for controlling a vehicle and a computer program for performing the method
05/19/2005US20050103007 Power system and work machine using same
05/19/2005US20050103006 Power system and work machine using same
05/19/2005DE202005003422U1 Device for mounting to compressed air appliances has housing with sockets for connection to conventional pressure generator and to pressure cartridge
05/19/2005DE102004039013A1 Spannvorrichtung in Bearbeitungsmaschinen Chuck in processing machines
05/18/2005EP0849070B1 Control device for hydraulically driven tool
05/18/2005CN2700621Y Pure water hydraulic throttle valve capable of precisely controlling flow
05/17/2005US6895319 Valve command signal processing system
05/17/2005US6892759 Valve having at least one screen
05/12/2005WO2005042983A1 Hydraulic system for a work machine
05/12/2005WO2005042982A2 Device and method for compensating the weight acting on a variable position hydraulic cylinder
05/12/2005US20050100444 Control system for variable pitch fan
05/12/2005US20050098326 Hydraulic circuit for hydraulic cylinder
05/11/2005CN2699036Y Hydraulic servo device
05/11/2005CN2699033Y Magneto-rheological fluid controlling valve with low energy consumption and wide control range
05/11/2005CN1613708A Reservoir tank of a power steering system for a car
05/11/2005CN1201093C Hydraulic advance servo unit
05/10/2005US6892102 Signal processor for a joystick input device
05/10/2005US6889730 Hydraulic drive system
05/10/2005CA2487461A1 Anti-stall pilot pressure control system for open center systems
05/10/2005CA2475862C Electro-hydraulic operating system for extensible boom crane
05/06/2005WO2004011812A3 Actuator control system for hydraulic devices
05/05/2005US20050092375 Reservoir tank of a power steering system for a car
05/05/2005US20050092369 Pressure regulator module for controlling a gas
05/05/2005US20050091973 Method and apparatus for driving hydraulic motors with agricultural tractors
05/04/2005EP1198278B1 Filter device for microfiltration of oil
05/04/2005EP1096003B1 Electro-sensitive working medium and method of using the medium
05/04/2005CN2697371Y Pneuamtic control reversing valve
05/04/2005CN2697370Y Control pneumatic valve
05/04/2005CN1612966A Hydraulic driving system of construction machinery
05/04/2005CN1611800A Oil hydraulic circuit using oil cylinder
05/04/2005CN1611799A Hydraulic cylinder
04/2005
04/28/2005US20050087065 Hydraulic system for a work machine
04/28/2005US20050086934 Hydraulic cylinder
04/27/2005CN2695709Y Reversing device of lifting sustaining valve
04/27/2005CN1609461A Hydraulic control system for energy-saving alternate moving oil cylinder
04/21/2005US20050081931 Connecting device for fluids
04/21/2005US20050081519 System for preventing swing wag for a work machine with a boom assembly
04/21/2005US20050081518 Flow-control apparatus for controlling the swing speed of a boom assembly
04/21/2005DE4417587B4 Regelmagnet für elektro-hydraulisch gesteuerte Anlagen Solenoid control for electro-hydraulically controlled systems
04/19/2005US6880446 Air cushion cylinder apparatus with a lock
04/19/2005US6880332 Method of selecting a hydraulic metering mode for a function of a velocity based control system
04/19/2005US6880331 Method and apparatus for control of hydraulic systems
04/19/2005US6880327 Arrangement and method for compressed air systems in vehicles
04/14/2005US20050076958 Control apparatus, method and diagnostic for hydraulic fill and drain
04/14/2005US20050076776 Pulsating vibration air generation apparatus
04/14/2005DE102004032652A1 Active hydraulic spring, especially for a cantilever arm of a loading vehicle, has a control unit that monitors the position of a cylinder piston using a sensor and controls a regulatable pressure limiting unit accordingly
04/13/2005CN2692393Y Manual electric dual purpase hydraulic driving device
04/13/2005CN2692391Y Four position four way distributor
04/12/2005US6877986 Element with expansible relief
04/12/2005US6877417 Fluid pressure circuit
04/07/2005US20050072954 Hydraulic valve arrangement
04/07/2005US20050072474 Valve assembly for attenuating bounce of hydraulically driven members of a machine
04/07/2005US20050072473 Self-contained hydraulic ESD system
04/07/2005DE10342485A1 Pressure release device for hydraulic lines as in common rail fuel injection systems for disassembly has overlapping piston that is partly removed to increase volume
04/07/2005DE10342037A1 Steueranordnung und Verfahren zur Druckmittelversorgung von zumindest zwei hydraulischen Verbrauchern A method and control arrangement for supplying pressure medium of at least two hydraulic consumers
04/07/2005DE10340504A1 Ventilanordnung und Hydraulikantrieb Valve assembly and hydraulic drive
04/06/2005EP1297516B1 Element with expansible relief
04/06/2005CN2690646Y Logic valve piston internal circulation oil cylinder
04/06/2005CN1604995A Hydraulic equipment
04/06/2005CN1195944C Method for selecting pneumatic device
04/05/2005US6874343 Press brake and method of controlling bidirectional fluid pump of hydraulic cylinder of press brake
03/2005
03/31/2005DE10340993A1 Controlling supply to hydraulic consumer units, employs variable delivery pump and controls distributor valve opening to satisfy demand from each consumer individually
03/30/2005CN2688956Y Hydraulic transmission with dynamic computer control
03/30/2005CN2688955Y Cradles
03/30/2005CN1601117A Hydraulic valves
03/29/2005US6871833 Disc drive shocking station with high speed spool valve actuation
03/29/2005US6871618 Valve actuating device, and method for controlling same
03/29/2005CA2220477C Hydraulic machines
03/24/2005WO2005026775A1 Closed-loop downhole resonant source
03/24/2005DE19925665B4 Verfahren zum Einstellen des Systemdrucks in einem hydraulischen Stellantrieb und hydraulischer Stellantrieb A method for adjusting the system pressure in a hydraulic actuator and a hydraulic actuator
03/24/2005DE19537758B4 Vorrichtung zum Entleeren hydraulischer Vorrichtungen Device for emptying hydraulic devices
03/24/2005DE10340115A1 Hydraulic valve has expandable element which in expanded state defines preloading of control spool, whereby expanded state of expandable element is dependent upon temperature of fluid at control connection
03/24/2005DE10127072B4 Auffangschale für ein Wartungsgerät zur Druckluftaufbereitung Drip tray for a maintenance unit for compressed air preparation
03/24/2005CA2535887A1 Closed-loop downhole resonant source
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