| 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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| 01/07/1997 | US5590525 Method of preventing cavitation in an axial piston pump during an aiding load and system and valve employing the same |
| 12/27/1996 | EP0525118B1 Hydraulic circuit and control system therefor |
| 12/18/1996 | EP0597109B1 Hydraulically driving system |
| 12/12/1996 | DE19622163A1 Hydraulic installation with automatic filter rinsing |
| 12/11/1996 | EP0621925B1 Hydraulic control system having poppet and spool type valves |
| 12/05/1996 | WO1996038673A1 A method in a pneumatic oscillating device to observe an obstacle and to continue oscillating and corresponding oscillating device |
| 12/05/1996 | WO1996038671A1 Compressed air maintenance device |
| 12/03/1996 | US5579868 Procedure for operating an elevator, and an elevator machinery |
| 12/03/1996 | CA2034686C Apparatus for water-cooling oil used in a hydraulic system for actuating an injection molding machine |
| 11/21/1996 | WO1996036814A1 Arrangement in a pressing tool for sheet metal forming |
| 11/21/1996 | DE19518431A1 Electrohydraulic proportional valve remote control method |
| 11/14/1996 | WO1996035896A1 Method and valve for filling fluid system |
| 11/14/1996 | DE19516389A1 Ventilation element for bore of hydraulic master- or slave-cylinder of motor vehicle |
| 11/14/1996 | CA2220050A1 Method and valve for filling fluid system |
| 11/05/1996 | US5570621 Adaptive control for hydraulic systems |
| 10/31/1996 | DE19613845A1 Drive circuit for fluid-operated actuator |
| 10/31/1996 | DE19515640A1 Electric circuit for controlling fluidic power valve e.g. for machine presses |
| 10/29/1996 | US5568759 Hydraulic circuit having dual electrohydraulic control valves |
| 10/22/1996 | US5568022 Integrated compliance servovalve |
| 10/17/1996 | WO1996032546A1 Bucket type digging machine |
| 10/16/1996 | CN1133407A Controller for cylinder positioning |
| 10/16/1996 | CN1133198A Machine oil seperator |
| 10/15/1996 | US5564274 Cold oil protection circuit for a hydraulic system |
| 10/10/1996 | DE19613393A1 Double sided pressure relief valve for hydraulic motor |
| 10/10/1996 | DE19612224A1 Oil feed system for tractor vehicle |
| 10/09/1996 | EP0608245B1 Electro-pneumatic control device |
| 10/09/1996 | CN1132834A Electromagnetic valve control device |
| 10/08/1996 | US5561979 Control arrangement for a hydrostatic system |
| 10/03/1996 | WO1996030655A1 Hydraulic circuit |
| 10/03/1996 | WO1996030654A1 Hydraulic circuit |
| 10/02/1996 | EP0735281A2 Aeration valve for hydraulic circuits |
| 10/02/1996 | EP0735274A1 A liquid pump |
| 10/02/1996 | DE19515962A1 Hydraulische Schaltung Hydraulic circuit |
| 10/02/1996 | DE19511525A1 Hydraulic cylinder with functional bolt |
| 10/02/1996 | DE19511482A1 Hydraulische Schaltung Hydraulic circuit |
| 10/01/1996 | US5560275 Drive of the fluid or electric type with a control |
| 10/01/1996 | US5560205 Attenuation of fluid borne noise |
| 09/26/1996 | WO1996023980A3 Device for actuating a hydrostatic drive |
| 09/26/1996 | DE19510430A1 Hydrostatic drive with closed- or open-circuit and electronic control via data media |
| 09/19/1996 | WO1996028664A1 Electrofluidic standard module and custom circuit board assembly |
| 09/19/1996 | WO1996028238A1 Air de-oiling element |
| 09/12/1996 | WO1996027741A1 Hydraulic controller |
| 09/12/1996 | DE19508815A1 Luftentölelement Exhaust filter |
| 09/11/1996 | CN1130726A Line structure for preheating hydraulic circulation |
| 09/10/1996 | US5553828 Electro-hydraulic actuator |
| 09/06/1996 | WO1996027051A1 Electrohydraulic proportional control valve assemblies |
| 09/04/1996 | EP0565645B1 Exhaust pressurizing control for a fluid system |
| 09/04/1996 | CN2234523Y Hydraulic device for full-automatic sinterer of diamond products |
| 09/03/1996 | US5551770 Method for estimating pressure in a pressure actuated controller |
| 09/03/1996 | US5551478 Multiplexing hydraulic control network with latching valves |
| 08/28/1996 | EP0728263A1 Method of cooling the hydraulic fluid in the working circuit of a construction machine, in particular a hydraulic excavator |
| 08/28/1996 | EP0727977A1 Hydraulic system for the hydraulic operation of an ambulance lifting platform |
| 08/22/1996 | DE19606098A1 Control device for hydrostatic system |
| 08/14/1996 | EP0592424B1 High force thermochemical actuator |
| 08/08/1996 | WO1996023996A1 Pressure reduction valve |
| 08/08/1996 | WO1996023980A2 Device for actuating a hydrostatic drive |
| 08/08/1996 | DE19545772A1 Position control for reciprocating cylinder drive |
| 08/08/1996 | DE19503736A1 Electromagnetic actuator for operation of an air valve |
| 08/07/1996 | CN2232506Y Hydraulic turbine electrolyte speed regulater controlled by electric machine |
| 07/31/1996 | EP0707696A4 Separable connector for pressure fluid components |
| 07/30/1996 | US5540554 Method and apparatus for controlling hydraulic systems of construction equipment |
| 07/30/1996 | US5540052 Pulse hydraulic systems and methods therefor |
| 07/25/1996 | WO1996007836A3 Magnetorheological fluid devices and process of controlling force in exercise equipment utilizing same |
| 07/24/1996 | EP0630494B1 Control system for glassware forming machine |
| 07/18/1996 | WO1996021817A1 Two-way seat-type valve |
| 07/18/1996 | DE4447611A1 Hydraulic pressure intensifier, and its use in a water-hydraulic welding system |
| 07/18/1996 | DE19500747A1 Zwei-Wege-Sitzventil Two-way poppet valve |
| 07/17/1996 | CN2231338Y Pneumatic motor steel ball type centrifugal speed regulator |
| 07/16/1996 | US5535588 Filter arrangement for single-acting telescopic hydraulic cylinders |
| 07/16/1996 | US5535587 Hydraulic drive system |
| 07/10/1996 | CN1126507A Power sensing regenerator |
| 07/10/1996 | CN1126506A Method and apparatus in a fluid-operating system |
| 07/10/1996 | CN1126284A Apparatus and method for reinforcing electric rheological effect |
| 07/02/1996 | US5531971 Process for purifying semiconductor process gases to remove lewis acid and oxidant impurities therefrom |
| 06/27/1996 | DE19547308A1 Vibration damping for pumped hydraulic systems |
| 06/13/1996 | WO1996018040A1 Heterogeneous energy accumulation or dissipation structure, methods for using such structure and associated apparatus |
| 06/05/1996 | EP0715108A1 Solenoid valve controller |
| 06/05/1996 | EP0714425A1 Process and composition for purifying semiconductor process gases to remove lewis acid and oxidant impurities therefrom |
| 06/05/1996 | CN1123887A Motor cavitation prevention device for hydraulic system |
| 05/30/1996 | DE4442128A1 Fluid collecting bowl for pneumatic service equipment |
| 05/22/1996 | EP0712467A1 Method of preventing cavitation in an axial piston pump during an aiding load and system and valve employing the same |
| 05/21/1996 | US5519636 Electronic control device for a valve range of modular design |
| 05/19/1996 | CA2163179A1 Thermally activated two-way valve |
| 05/14/1996 | US5516425 Oil filter for the cleaning of lubricating oil |
| 05/14/1996 | US5516042 Thermally activated two-way valve |
| 05/09/1996 | WO1996013669A1 Energy recovery device |
| 05/09/1996 | DE4439454A1 System for preheating of hydraulic circuits |
| 05/07/1996 | US5513551 Hydraulic control system |
| 05/02/1996 | WO1996012991A1 Multiplexing hydraulic control network with latching valves |
| 05/02/1996 | DE4438621A1 Water-hydraulic welding system with piston valve and pressure transmitter |
| 04/30/1996 | US5511457 Steering control system for an autonomous machine |
| 04/25/1996 | WO1996011796A1 Hydraulic press drive |
| 04/25/1996 | CA2202523A1 Hydraulic press drive |
| 04/24/1996 | EP0707696A1 Separable connector for pressure fluid components |
| 04/23/1996 | US5511044 Thrust producing apparatus |
| 04/23/1996 | US5510987 Shock prevention apparatus for hydraulic/air-pressure equipment and method thereof |
| 04/23/1996 | CA1338271C Control means for a hydraulic servomotor |
| 04/18/1996 | WO1996011349A1 Valve, especially for hydraulic water or emulsion systems |
| 04/18/1996 | WO1996011306A1 Vibrating device for an operating machine for a hydraulic shovel |
| 04/18/1996 | DE4436666A1 Hydraulisches Antriebssystem für eine Presse A hydraulic drive system for a press |