| 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) |
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| 01/12/2005 | CN1184424C Liquid pressure stabilizer |
| 01/12/2005 | CN1184027C Press brake |
| 01/06/2005 | US20050001606 Hybride construction machine having auxiliary battery and control apparatus thereof |
| 01/06/2005 | US20050001567 Actuator driving device of working machine |
| 01/05/2005 | EP0884482B1 Control device for hydraulic drive machine |
| 01/05/2005 | DE10324163A1 Self sufficient cylinder valve unit for e.g. servo motor, has valve powered by electricity generated by energy converter using pressure supplied to valve |
| 01/05/2005 | DE102004015280A1 Servolenkmotor mit einer Geräuschdämpfungskolbenanordnung Power steering motor with a noise damping piston assembly |
| 01/05/2005 | CN2668908Y 液压油净化系统 Hydraulic oil purification system |
| 01/05/2005 | CN2668907Y Range control system for telescopic arm type high-altitude operation vehicle |
| 01/05/2005 | CN1560481A Pre-sealing controlling apparatus for hydropress |
| 01/05/2005 | CN1183304C Hydraulic loop control device of construction machinery |
| 01/04/2005 | US6837140 Control system and method for hydraulic working machine |
| 01/04/2005 | US6836981 Hydraulic control circuit for boom cylinder in work machine |
| 12/30/2004 | US20040262827 Air cylinder with high frequency shock absorber and accelerator |
| 12/30/2004 | US20040261571 Hydraulic drive device utilizing electric motor |
| 12/29/2004 | WO2004113698A1 Fluid cooling device |
| 12/29/2004 | EP1491772A2 Method of removing a contaminant from a hydraulic system |
| 12/29/2004 | EP1490604A1 Pressure control valve for hydraulic actuation assembly |
| 12/29/2004 | EP0934472B1 Removal of air from hydraulic system |
| 12/28/2004 | US6834680 Method of purging liquids from piston accumulators |
| 12/28/2004 | US6834661 Dual mode solenoid valve with pressure regulation |
| 12/23/2004 | US20040256396 Resin tank |
| 12/23/2004 | US20040256308 Fluid filtration system including replaceable filter module |
| 12/23/2004 | US20040255772 Device for adjusting the pressure in a hydraulic jack |
| 12/23/2004 | DE10297541T5 Hydraulisches System mit verbessertem Wirkungsgrad Hydraulic system with improved efficiency |
| 12/16/2004 | WO2004058550A3 Hydraulic regenerative braking system for a vehicle |
| 12/16/2004 | US20040250860 Construction machine |
| 12/16/2004 | DE202004015491U1 Measurement of the level of dirtiness of a filter in a fluid, especially hydraulic fluid, circuit, whereby filtered and unfiltered fluid are connected to a differential pressure transducer that is linked to evaluation electronics |
| 12/16/2004 | DE10328417B3 Stationary nitrogen generation and compressed storage tank for industrial use |
| 12/15/2004 | EP1486621A2 Construction machine |
| 12/15/2004 | CN2663709Y Extracorporeal circulation and filtration device of loader hydraulic system |
| 12/15/2004 | CN2663708Y Energy-saving control device of hydraulic quantitative oil pump |
| 12/09/2004 | WO2004049085A3 Anti-condensation control system for devices driven by compressed air |
| 12/09/2004 | US20040248685 Hydraulic control system of a six-speed automatic transmission for a vehicle |
| 12/09/2004 | DE10311810B3 Damping device for damping upper and/or lower hammers in lines of hydraulic control units for working cylinders comprises a cylinder connected to a line and a piston sliding in the cylinder |
| 12/08/2004 | CN2661990Y Stream actuated heat sink |
| 12/07/2004 | US6827822 Electrodes apply current to the fluid forming chains of particles; applying pressure to cause thickening or aggregation improves force/torque transmission |
| 12/07/2004 | US6827106 Orifice of fluid passage and orifice clogging preventing mechanism |
| 12/02/2004 | WO2004104417A1 A method and device for the pneumatic operation of a tool |
| 12/02/2004 | DE19521722B4 Automatisches Ausgrabungs- oder Baggerlehrsteuersystem und Verfahren Automatic excavation or dredging teaching control system and method |
| 12/02/2004 | DE10049958B4 Fluidtechnische Anordnung sowie Ventilanordnung und Aktuator hierfür Fluidic assembly and valve assembly and actuator therefor |
| 12/01/2004 | EP1325237B1 Arrangement using fluid technology and valve arrangement and actuator for the same |
| 12/01/2004 | EP1249651B1 Fluid control valve and plate with filter |
| 12/01/2004 | CN2660202Y Portable hydraulic unit |
| 12/01/2004 | CN2660201Y Internal-external pressure balance directly driving pressure compensation valve of underwater environmental hydraulic system |
| 11/30/2004 | US6823895 Magnetorheological fluid device |
| 11/25/2004 | US20040231326 Control device for working machine |
| 11/24/2004 | EP1479920A2 Control device for working machine |
| 11/24/2004 | CN1548859A 半导体冷却器 Semiconductor coolers |
| 11/18/2004 | US20040226868 Filter for trapping foreign matter |
| 11/18/2004 | DE10320776A1 Vorrichtung zur Kompensation von viskosen Eigenschaften eines hydraulischen Mediums in einer hydraulischen Druckleitung A device for compensation of viscous properties of a hydraulic fluid in a hydraulic pressure line |
| 11/18/2004 | DE10314242A1 Servozylinder Servocylinder |
| 11/18/2004 | DE10313418B3 Pulsation damping device for hydraulic system e.g. IC engine lubrication system, supplying gas or vapor pressure acting on fluid supplied to feed pump in hydraulic circuit |
| 11/17/2004 | CN1546877A Differential pressure triggering type reversing control method for hydraulic oil cylinder |
| 11/17/2004 | CN1546874A Hydraulic oil cylinder with differential pressure triggering reversing control structure |
| 11/17/2004 | CN1546872A Linear pressure valve of underwater installation hydraulic system for environmental pressure compensation |
| 11/17/2004 | CN1546871A Leading control type pressure valve of underwater installation hydraulic system for environmental pressure compensation |
| 11/16/2004 | US6817277 Device for controlling hydraulic pressure of construction machine |
| 11/11/2004 | WO2004097227A1 Valve |
| 11/11/2004 | US20040225429 Method for controlling an electromagnetic valve, in particular for an automatic transmission of a motor vehicle |
| 11/11/2004 | US20040222319 Apparatus for compensating viscous characteristics of hydraulic fluid in a hydraulic pressure line |
| 11/11/2004 | DE10318114A1 Elektrohydraulisches Bremssystem Electro-hydraulic brake system |
| 11/11/2004 | DE102004014398A1 Filter zum Zurückhalten von Fremdstoffen Filters for retaining impurities |
| 11/10/2004 | CN2654921Y Respirator oil scale for power steering oil tank |
| 11/10/2004 | CN2654920Y Seawater environment pressure compensator for underwater hydraulic system |
| 11/10/2004 | CN1544820A Seawater environment pressure compensation in hydraulic system of underwater installations |
| 11/10/2004 | CN1544802A Method and equipment for reducing vehicle energy consumption |
| 11/04/2004 | WO2004094892A2 Inherently safe system for supplying energy to and exchanging signals with field devices in hazardous areas |
| 11/04/2004 | DE4236554B4 Ventileinrichtung zur Vermeidung von Entspannungsschlägen Valve means for preventing strokes relaxation |
| 11/04/2004 | DE102004012294A1 Hochgeschwindigkeitsantriebsverfahren und -system für Druckzylinder High-speed driving method and system for printing cylinder |
| 11/03/2004 | CN1541746A Filter for trapping foreign matter |
| 11/03/2004 | CN1174172C Fluid static-force driving device |
| 10/28/2004 | WO2004092959A1 Electrically controlled actuating element on a machine |
| 10/28/2004 | WO2004092593A1 System and method for controlling viscosity of a fluid and a working vehicle containing such a system |
| 10/28/2004 | WO2004092491A1 Hydraulic drive device |
| 10/28/2004 | US20040214678 Pressure control valve for hydraulic actuation assembly |
| 10/28/2004 | US20040211614 Hydraulically driven vehicle |
| 10/28/2004 | US20040211470 Methods and systems for performing, monitoring and analyzing multiple machine fluid processes |
| 10/28/2004 | US20040211469 Control system |
| 10/28/2004 | DE10313176A1 Agricultural soil cultivation and sowing combination has individual interlinked hydraulic pressure or leveling system for ground pressing implements and conduit with two way valve |
| 10/28/2004 | DE102004016053A1 Elektrisch gesteuertes Betätigungselement an einer Maschine Electrically controlled actuator on a machine |
| 10/27/2004 | EP1470014A2 Hydraulic energy storage systems |
| 10/27/2004 | CN2651493Y Moisture absorbing style air filtering purifier for oil supplier of electric hydraulic regulating system of power generating station turbine |
| 10/27/2004 | CN1540171A Oil pressure driving gear utilizing motor |
| 10/21/2004 | WO2004090345A1 Device and method for attenuating pressure fluctuations in hydraulic lines |
| 10/21/2004 | DE20314232U1 Hydraulisch gesteuertes Ventil Hydraulically controlled valve |
| 10/21/2004 | DE10316946A1 Vorrichtung und Verfahren zur Dämpfung von Druckschwingungen in Hydraulikleitungen Apparatus and method for damping pressure oscillations in hydraulic lines |
| 10/19/2004 | US6804957 Mobile handling device |
| 10/14/2004 | DE202004012963U1 Hydraulisches Servolenkventilgehäuse A hydraulic power steering valve housing |
| 10/14/2004 | DE10313487A1 Hydraulic system for driving load, has pressure fluid source that pumps out fluid from fluid reservoir to actuate loads, in which each load has pressure fluid supply lines that connect to pressure fluid source based on actuation of load |
| 10/13/2004 | EP1467118A2 Device for replenishing the chambers of a hydraulic actuating cylinder |
| 10/13/2004 | EP1465792A1 Valve for controlled inflation and venting of an airbag |
| 10/12/2004 | US6802791 Pressure control valve for hydraulic actuation assembly |
| 10/07/2004 | WO2004085859A1 Hydraulic cylinder device |
| 10/07/2004 | WO2004085855A1 Hydraulic device |
| 10/07/2004 | WO2004084616A1 Agricultural soil cultivation and/or sowing combination |
| 10/07/2004 | US20040195036 Power steering motor having a noise dampening piston assembly |
| 10/07/2004 | DE10313175A1 Agricultural soil cultivation and sowing combination has individual interlinked hydraulic pressure or leveling system for ground pressing implements and conduit with two way valve |
| 10/06/2004 | CN2646447Y Filtering antisoil flow resistance of fluid-electric network |
| 09/30/2004 | WO2004083646A1 Oil pressure circuit for working machines |