Patents
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)
06/1998
06/02/1998US5758499 Hydraulic control system
05/1998
05/28/1998DE19647169A1 Steuervorrichtung für Fahrsystem bei Baufahrzeugen Control device for driving system construction vehicles
05/20/1998EP0842376A1 Dual pilot manifold assembly for a safety relief valve
05/12/1998US5750950 Hydraulic drive device for circuit breaker and circuit breaker using the same
05/12/1998US5750879 Stick-slip detection method and apparatus
04/1998
04/23/1998DE19643104A1 Valve mechanism, especially for hydraulic overload protection of presses
04/23/1998DE19641540A1 Hydraulic control valve
04/07/1998US5735122 Actuator with failfixed zero drift
03/1998
03/31/1998US5733017 Pressure accumulating control system
03/19/1998DE19637804A1 Valve unit for hydraulic overload safety in presses
03/18/1998EP0829342A1 Hydraulic system for controlling brakes, clutches and brakes-clutches
03/17/1998US5727442 Safety device at hydraulic piston-cylinder units
02/1998
02/19/1998WO1998006946A1 Apparatus for diagnosing failure of hydraulic pump for work machine
02/18/1998EP0823967A1 Safety device for an electro-hydraulic drive unit
01/1998
01/21/1998EP0819795A1 Hydraulic circuit for hydraulic machine
01/21/1998CN1170894A Control device
01/15/1998DE19628058A1 Travel/ride control unit for vehicle with hydrostatic propulsion
01/15/1998CA2193930A1 Control device
01/08/1998WO1998000200A1 Pump system
12/1997
12/30/1997US5701801 Mechanically redundant actuator assembly
12/30/1997US5701618 Hydraulic system for hydraulically actuating an ambulance lifting table
12/18/1997DE19723728A1 Process for detection of stick-slip movements in control valves or gas regulators
12/10/1997EP0811513A2 Actuator drive system and suspension apparatus
12/04/1997DE19649440C1 Pneumatically operable drive unit
12/04/1997DE19622198A1 Dynamic monitoring device for valves
12/03/1997EP0810136A1 Pressure installation
12/03/1997CN1166404A Control device for two-hand control means for controlling presses, for instance
11/1997
11/27/1997DE19621087A1 Safety circuit for actuators controlled by analogue signals e.g. for machine tools and vibratory tables
11/26/1997EP0727977B1 Hydraulic system for the hydraulic operation of an ambulance lifting platform
11/19/1997CN1165264A Circuit reset lockout
11/05/1997EP0805280A1 Safety valve for apparatus operating with pressurised fluid
11/04/1997US5683071 Pilot hydraulic system controller apparatus
10/1997
10/28/1997US5680761 For driving a hydraulic pump
10/16/1997WO1997038228A1 Safety circuit
10/09/1997DE19613848A1 Sicherheitsschaltung Safety circuit
09/1997
09/24/1997EP0797010A2 Hydraulic oil power unit
09/09/1997US5664477 For use in a hydraulic system
09/03/1997CN1158393A Rupture disk apparatus and methods
08/1997
08/27/1997EP0791869A1 A circuit reset lockout
08/24/1997CA2193929A1 Circuit reset lockout
08/21/1997DE19605173A1 Hydraulic safety valve, with non-return valve in consumer line
08/07/1997WO1997028318A1 Hydraulic circuit for hydraulic machine
08/07/1997WO1997027995A1 Hydraulic system for controlling brakes, clutches and brakes-clutches
08/05/1997US5654885 Valve position controller
07/1997
07/30/1997CN1155744A Fluid pressure drive device for circuit breaker and circuit breaker using the same
07/29/1997US5651385 Servo drive operated by a pressure medium
07/02/1997EP0782057A1 A double valve control device
06/1997
06/25/1997EP0780743A1 A two-hand control device for controlling presses
06/20/1997CA2193168A1 Control device for a two-hand control means for controlling presses, for instance
05/1997
05/28/1997EP0775836A2 Apparatus for controlling selectively engageable detents in a pilot controller
05/14/1997EP0773370A1 Hydraulic controller
05/02/1997EP0770805A2 Rupture disk apparatus and methods
04/1997
04/25/1997CA2188229A1 Rupture disk apparatus and methods
04/23/1997CN1148108A Method and device for inspecting pneumatic twisting device
04/16/1997CN1147847A Hydraulic controller
04/01/1997US5617338 Method of and system for electrically processing vacuum pressure information suitable for use in vacuum unit
03/1997
03/27/1997DE19534053A1 Hydraulic circuit protection equipment
03/20/1997DE19534114A1 Method for testing automatic thread processing machine
03/18/1997US5611199 Two stage electrohydraulic pressure control valve
03/13/1997WO1997009553A1 Dual pilot manifold assembly for a safety relief valve
03/13/1997DE19532962A1 Hydraulic overload control valve, esp. on presses
02/1997
02/06/1997WO1997004253A1 Safety circuit
01/1997
01/23/1997DE19526754A1 Sicherheitsschaltung Safety circuit
01/07/1997US5590685 High-low indicator
01/07/1997US5590684 Dual pilot manifold assembly for a safety relief valve
12/1996
12/19/1996DE19619860A1 Injection piston movement control
12/18/1996EP0748437A1 Apparatus and method for detecting leak in hydraulic system
11/1996
11/26/1996US5577532 Valve actuator
11/12/1996US5572918 Multi-functional valve
11/07/1996WO1996035077A1 Safety device for an electro-hydraulic drive unit
10/1996
10/31/1996DE19515884A1 Einrichtung zur Sicherung einer elektrohydraulischen Antriebseinheit Means for securing an electro-hydraulic drive unit
10/30/1996EP0739437A1 Device and method for controlling attachment of construction machine
10/10/1996DE19613988A1 Connecting block esp. for hydraulic braking system in vehicle trailer
09/1996
09/12/1996WO1996027741A1 Hydraulic controller
08/1996
08/28/1996EP0727977A1 Hydraulic system for the hydraulic operation of an ambulance lifting platform
07/1996
07/16/1996US5535622 Brake performance monitoring
06/1996
06/19/1996EP0717201A2 Protection system in a pressure installation
05/1996
05/23/1996WO1996015326A1 Device and method for controlling attachment of construction machine
05/08/1996CN1121987A Pneumatic control circuit
04/1996
04/25/1996DE4438771A1 Automatic switch-off system for hydraulic load with occurrence of leakage
04/23/1996US5510987 Shock prevention apparatus for hydraulic/air-pressure equipment and method thereof
04/11/1996WO1996010698A1 Device for driving a hydraulically controlled main valve
04/04/1996DE4435339A1 Anordnung zur Ansteuerung eines hydraulisch betätigbaren Hauptventils Arrangement for controlling a hydraulically operated main valve
03/1996
03/27/1996EP0702756A1 Safety arrangement on hydraulic piston-cylinder units
03/14/1996DE19531867A1 Hydraulic control system for fire department manager
03/12/1996US5497805 Drive control system for hydraulic machine
03/01/1996CA2131045A1 High-low indicator
02/1996
02/07/1996EP0695876A2 Pneumatic control circuit
01/1996
01/25/1996WO1996001954A1 Control circuit
01/09/1996CA2108051C Hydraulic pipeline valve operating system
12/1995
12/14/1995WO1995033929A1 Regulation process and electrohydraulic regulation system for a consumer in a machine
12/13/1995EP0686776A1 Multi-function valve
12/13/1995CN1030515C Energy saving and monitoring pneumatic control valve system
12/06/1995EP0685654A2 Brake performance monitoring
12/02/1995CA2150599A1 Spring applied safety device
11/1995
11/30/1995DE4420166C1 Regelungsverfahren und elektrohydraulisches Regelsystem für einen Verbraucher eines Arbeitsgeräts Control method and electro-hydraulic control system for a consumer of an implement
11/29/1995EP0684392A1 Safety valve
11/28/1995US5469703 Device for controlling a hydraulic motor
10/1995
10/31/1995US5461903 Apparatus and method for detecting leak in hydraulic system
10/05/1995DE4440310A1 Shock preventer for machines with hydraulic and/or pneumatic drives
1 ... 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24