| Patents for F15B 20 - Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems (2,348) |
|---|
| 06/15/2000 | DE19856563A1 Wegeventil Way valve |
| 06/08/2000 | DE19956717A1 Hydraulic control appliance for hydraulic shovels etc. has arrangement to prevent load from falling without connected overload relief valve |
| 06/07/2000 | EP1006284A2 Control valve system |
| 06/02/2000 | CA2290175A1 Control valve system |
| 05/31/2000 | DE19951498A1 Control system for fluidically actuated rapid coupling in working machine tool has two switches and relief valve that delivers pressurized fluid to the actuator when both switches activated |
| 05/17/2000 | EP0739437B1 Device and method for controlling attachment of construction machine |
| 05/17/2000 | EP0702756B1 Safety arrangement on hydraulic piston-cylinder units |
| 05/11/2000 | WO2000026060A1 Pressure switch to defeat platform fold operation in a hydraulic lift |
| 05/11/2000 | CA2347680A1 Pressure switch to defeat platform fold operation in a hydraulic lift |
| 05/10/2000 | EP0748437B1 Detecting leak in an hydraulic system by rate of change of level |
| 05/09/2000 | US6058826 Power steering cylinder assembly |
| 05/02/2000 | US6055851 Apparatus for diagnosing failure of hydraulic pump for work machine |
| 04/27/2000 | DE19849280A1 Control method for hydraulic drive for machine part involves acyclic braking for which brake valve is driven using different demand value for its opening state than for cyclic braking |
| 04/25/2000 | US6053202 Fail-safe closure system for remotely operable valve actuator |
| 04/19/2000 | EP0994261A2 Arrangement for hydraulically actuating a roof, boot lid or similar |
| 04/13/2000 | DE19943828A1 Hydraulic directional valve has central duct passing through main piston and connecting consumer chamber and return chamber which are set at opposite ends of main piston |
| 04/13/2000 | DE19845635A1 Pneumatic starting valve with rapid venting for path valve has two connecting channels and one rapid venting channel, being connected to baseplate with movable piston with movable seat valve in valve housing block |
| 04/06/2000 | WO2000018382A2 Hydraulic directional valve |
| 03/16/2000 | WO2000014413A1 A protection device for controlling the motion of a pneumatic actuator |
| 03/16/2000 | CA2341647A1 A protection device for controlling the motion of a pneumatic actuator |
| 03/08/2000 | EP0983442A1 Manually operated emergency control actuation device |
| 03/01/2000 | EP0982503A2 Servo-actuated piston with self-contained hydromechanical detection |
| 01/19/2000 | EP0972138A1 Hydraulic control device |
| 01/19/2000 | CN1241687A Safety valve for liquefied petroleum gas pump |
| 12/23/1999 | DE19826862A1 Electromagnetic valve with two outputs and a double lift magnet, pump and hydraulic fluid storage space |
| 12/22/1999 | EP0965000A1 Hydraulic unit |
| 12/07/1999 | US5996605 Rupture disk safety member |
| 12/07/1999 | US5996464 Fail safe valve and multiplexed fluid control systems incorporating the same |
| 11/30/1999 | US5992591 Hydraulic system for controlling brakes, clutches and brake-clutches |
| 11/18/1999 | DE19842271C1 Hydraulic rotary drive for valve |
| 11/18/1999 | DE19822092A1 Hydraulic pressure accumulator system with cylinder piston |
| 11/17/1999 | CN1235247A Valve for controlling supply pipe |
| 11/16/1999 | US5983782 Rotary actuator with hole-in-the-wall for fail safe |
| 11/11/1999 | DE19916056A1 Oil pressure controller used in commercial vehicle e.g. fork lift truck |
| 11/10/1999 | EP0823967B1 Safety device for an electro-hydraulic drive unit |
| 11/04/1999 | WO1999056053A1 Control system |
| 11/03/1999 | CN1233718A Fluid safety controlling apparatus |
| 11/02/1999 | US5974851 Rupture disk apparatus and methods |
| 10/28/1999 | WO1999036714A9 Two out of three voting solenoid arrangement |
| 10/27/1999 | EP0952358A2 Hose rupture control valve unit |
| 10/20/1999 | CN1231987A Oil pressure controller for industrial vehicles |
| 09/29/1999 | CN2340972Y Rotary cylinder |
| 09/23/1999 | WO1999036714A3 Two out of three voting solenoid arrangement |
| 09/15/1999 | EP0941408A1 Actuator with failfixed zero drift |
| 09/14/1999 | US5950427 Fail-safe electric hydraulic actuator |
| 09/14/1999 | US5950426 Hydraulic circuit for hydraulic machine |
| 08/31/1999 | CA2088185C Two line pilot valve |
| 08/18/1999 | EP0936358A1 Safety device for pneumatic actuators |
| 08/17/1999 | US5937730 Pneumatically operable drive unit with a temperature dependent irreversibly releasable lock joint |
| 08/11/1999 | CA2234785A1 Safety device for pneumatic actuators |
| 08/10/1999 | US5934308 Rupture disk apparatus and methods |
| 08/03/1999 | US5931739 Fail-safe ride simulator |
| 07/29/1999 | DE19805519C1 Overload safety for mechanical press |
| 07/27/1999 | US5927324 Cross flow with crossmirror and lock out capability valve |
| 07/22/1999 | WO1999036714A2 Two out of three voting solenoid arrangement |
| 07/14/1999 | EP0928849A2 Pump failure alarm system for hydraulic working machine |
| 07/14/1999 | EP0928739A2 Power tilt apparatus for monting an outboard engine on a boat |
| 07/07/1999 | EP0927845A1 Redundant regulation valve |
| 06/15/1999 | US5912795 Circuit reset lockout |
| 05/19/1999 | EP0916853A2 Electro-hydraulic actuator |
| 05/06/1999 | DE19748758A1 Motorized positioning drive, preferably slide or valve drive for controlling water feed to a snow cannon |
| 05/04/1999 | US5899064 Servo-actuator with fail safe means |
| 04/08/1999 | DE19742283A1 Electromagnetically actuated pneumatic valve |
| 03/11/1999 | WO1999011939A1 Protective circuit |
| 03/11/1999 | DE19738637A1 Sicherheitsschaltung Safety circuit |
| 03/04/1999 | WO1999010672A1 Fail-safe closure system for remotely operable valve actuator |
| 03/02/1999 | US5875818 Opto-electric/hydraulic servocactuation |
| 02/02/1999 | US5865453 Vehicle height adjusting suspension including differential pressure valve |
| 01/13/1999 | EP0890030A1 Safety circuit |
| 01/13/1999 | CN2303963Y Oil-leakage monitoring alarming device for use under pressure-maintaining condition |
| 01/07/1999 | EP0842376A4 Dual pilot manifold assembly for a safety relief valve |
| 12/23/1998 | CN1041344C Pilot-operated control servo valve |
| 12/22/1998 | US5850852 Crossflow with crossmirror and lock out capability valve |
| 12/16/1998 | EP0884476A2 Pressure limiting control circuit for the safe operation of a variable displacement radial or axial hydraulic piston pump or vane cell machine |
| 12/08/1998 | US5848381 Decision system for determining sensor failure of temperature sensor in automobile applications |
| 12/01/1998 | USH1761 Hydraulic circuit leak detector and shut-off mechanism |
| 11/26/1998 | WO1998053213A1 Manually operated emergency control actuation device |
| 11/26/1998 | WO1998052804A1 Hydraulic control device, specially for a fork lift |
| 11/26/1998 | DE19721739A1 Hydraulische Steueranordnung, insbesondere für einen Gabelstapler A hydraulic control arrangement, in particular for a forklift |
| 11/26/1998 | DE19721404A1 Betätigungsvorrichtung mit Nothandbetätigung Actuator with manual override |
| 11/03/1998 | US5829470 Differential volume sensing hydraulic control |
| 11/03/1998 | CA2154236C Pneumatic control circuit |
| 10/28/1998 | EP0874163A2 A double two-channel drive system for a pressurized fluid flow |
| 10/21/1998 | EP0872647A2 Vacuum control and cutoff apparatus for a pneumatic duct |
| 10/15/1998 | WO1998045603A1 Hydraulic control device |
| 10/08/1998 | DE19714141A1 Hydraulische Steueranordnung The hydraulic control arrangement |
| 09/17/1998 | WO1998040630A1 Hydraulic unit |
| 09/01/1998 | US5799561 For controlling/monitoring a pair of first/second pneumatic valves |
| 08/18/1998 | US5796571 Control device for a two-hand control means for controlling presses for instance |
| 08/11/1998 | US5791229 Control device for travelling system in construction vehicles |
| 07/28/1998 | US5784944 Device and method for controlling attachment of construction machine |
| 07/28/1998 | US5784884 Fail-safe transfer valve |
| 07/14/1998 | US5779327 Pressure supply system having a malfunction detection device |
| 07/01/1998 | CN1186182A Cross flow with crossmirror and lock out capability valve |
| 06/23/1998 | US5769113 Dual pilot manifold assembly for a safety relief valve |
| 06/23/1998 | US5768873 Method and device for testing a pneumatic splicing valve |
| 06/17/1998 | EP0848166A1 Cross flow with crossmirror and lock out capability valve |
| 06/04/1998 | WO1998023866A1 Actuator with failfixed zero drift |
| 06/04/1998 | CA2270161A1 Actuator with failfixed zero drift |
| 06/02/1998 | US5758683 On/off circuit for a hydraulic system |