Patents
Sitemap › F15 - Fluid-pressure actuators; Hydraulics or pneumatics in general › F15B - Systems acting by means of fluids in general; Fluid-pressure actuators, e.g. servomotors; Details of fluid-pressure systems, not otherwise provided for › F15B 20 - Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
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)
01/1986
01/07/1986EP0120006A4 Two-fluid nonflammable hydraulic system.
12/1985
12/17/1985US4558630 Hydraulic mechanism with elastically backed piston parts and cooperating valve means
10/1985
10/08/1985US4545407 Jam compensating control valve
09/1985
09/25/1985EP0155771A1 Improvements relating to hydraulic fluid supply systems
09/24/1985US4542767 Monitor for double safety valves
09/17/1985US4541324 Vacuum actuator with fail-safe system
08/1985
08/28/1985EP0153253A1 High pressure hydraulic directional valve with mechanical actuated discharge valve
08/21/1985EP0055714B1 A double-acting hydraulic piston cylinder device
08/21/1985EP0053608B1 Valve system
08/20/1985US4535590 Thermal servo-motor, particularly for valves
08/07/1985EP0056369B1 Pressure reducing valve for dead engine lowering
07/1985
07/24/1985EP0149386A1 Urgent-venting device for pneumatic actuators
07/17/1985EP0148352A1 Device to supply fluid to a consumer
06/1985
06/11/1985US4522175 Rotational speed control apparatus for internal combustion engines
06/11/1985US4522109 Leak-detecting hydraulic system
04/1985
04/09/1985CA1185294A1 Tiltcab truck with a safety latch cylinder
04/02/1985US4507919 Fail safe actuator
01/1985
01/17/1985WO1985000204A1 Improvement to electro-fluidic relays
01/15/1985US4493509 Two-fluid nonflammable hydraulic system
12/1984
12/12/1984EP0128002A2 Pilot valves for two-stage hydraulic devices
11/1984
11/06/1984US4480811 Fail-safe actuator device
10/1984
10/17/1984EP0121932A2 Rotation speed control apparatus for internal combustion engines
10/03/1984EP0120006A1 Two-fluid nonflammable hydraulic system.
09/1984
09/25/1984US4473095 Safety valve for a press
09/18/1984US4471797 Hydraulic circuit breaker reset device
09/11/1984US4470337 Fail-fixed servovalve with positive fluid feedback
08/1984
08/07/1984CA1172137A1 Hydraulic piston cylinder device with a valve element
06/1984
06/26/1984US4456031 Electro-hydraulic servo valve system
05/1984
05/09/1984EP0107740A1 Multi-way valve
04/1984
04/27/1984EP0072793A4 Control for dead engine lower.
04/12/1984WO1984001333A1 Two-fluid nonflammable hydraulic system
01/1984
01/31/1984US4428196 Aircraft split hydraulic system
01/17/1984CA1160541A1 Regenerative and anticavitation hydraulic system for an excavator
12/1983
12/20/1983CA1158958A1 Steering gear for ships
11/1983
11/09/1983EP0093348A2 Electro-hydraulic servo valve system
11/08/1983US4413547 Servo-control device for aircraft flight control
11/01/1983US4412670 Fail-safe actuator and hydraulic system incorporating the same
10/1983
10/26/1983EP0092123A2 Failure prediction system suitable for use in hydraulic system
10/25/1983US4411332 Tiltcab truck with a safety latch cylinder
10/06/1983EP0056369A4 Pressure reducing valve for dead engine lowering.
10/06/1983EP0053608A4 Valve system.
08/1983
08/02/1983CA1151029A1 Safety systems
05/1983
05/31/1983CA1147242A1 Fail safe device for actuators
05/11/1983WO1983001604A1 Tiltcab truck with a safety latch cylinder
05/11/1983EP0078348A1 A device for tilting a vehicle cabin from and into the drive position
04/1983
04/27/1983EP0077598A1 Electrohydraulic doser actuator
04/20/1983EP0077253A1 Security device between a control system of a security actuator, and a logic control circuit thereof
03/1983
03/08/1983US4375780 Fail-fixed electrohydraulic servosystem
03/02/1983EP0072793A1 Control for dead engine lower.
03/01/1983USRE31161 Safety valve assembly for controlling clutch and brake in power press or the like
02/1983
02/08/1983CA1140837A1 Fail-safe actuator and hydraulic system incorporating the same
12/1982
12/28/1982US4365573 Steering gear for ships
11/1982
11/23/1982US4359931 Regenerative and anticavitation hydraulic system for an excavator
10/1982
10/12/1982US4353392 Safety valve assembly
09/1982
09/28/1982US4351357 Fail safe compensator used in a hydraulic servo control system
09/21/1982US4350081 Fail-safe device for actuators
08/1982
08/24/1982US4345620 Safety valve assembly
07/1982
07/28/1982EP0056770A2 A regenerative and anti-cavitation hydraulic system for an excavator
07/28/1982EP0056369A1 Pressure reducing valve for dead engine lowering.
07/20/1982US4340086 Hydraulic control valve unit
07/13/1982US4338965 Self-monitoring dual-spool servovalve
07/08/1982WO1982002229A1 Control for dead engine lower
07/06/1982US4337689 Safety system for a double acting servomotor
06/1982
06/22/1982US4335745 Hydraulic distributor, especially for servo-control systems of aircraft and helicopters
06/16/1982EP0053608A1 Valve system.
06/08/1982CA1125145A1 Power transmission
05/1982
05/18/1982US4330013 Valve safety indicating means
05/18/1982CA1123709A1 Differential area electrohydraulic doser actuator
05/04/1982CA1122880A1 Hydraulic control valve unit
03/1982
03/18/1982WO1982000862A1 Actuator system for a control surface of an aircraft
02/1982
02/09/1982US4314502 Safety control system for double-acting cylinder
12/1981
12/24/1981WO1981003689A1 Valve system
12/24/1981WO1981003685A1 Pressure reducing valve for dead engine lowering
12/10/1981WO1981003527A1 Hydraulic piston cylinder device with a valve element
11/1981
11/11/1981EP0039643A1 Fluid safety valve
10/1981
10/20/1981US4295630 Fail-safe actuator and hydraulic system incorporating the same
09/1981
09/29/1981US4291613 Monitor for double safety valves
08/1981
08/12/1981EP0033698A1 Safety valve for hydraulic systems
08/12/1981EP0033669A1 Servocontrol and its use in flight control devices of aircraft
07/1981
07/28/1981CA1105803A1 Self monitoring double valve
07/21/1981CA1105391A1 Redundant ehv fault detector
07/14/1981US4278011 Automatic hydraulic shut-off system
07/07/1981US4276809 Simplified fail-fixed servovalve
07/07/1981CA1104466A1 Reset means for fluid control circuit
06/1981
06/23/1981US4274328 Automatic hydraulic shut-off system
06/16/1981US4272959 Diaphragm breakage condition detecting device for a pressure control device
05/1981
05/26/1981US4269225 Safety valve assembly
05/26/1981US4269111 Hydraulic apparatus
05/20/1981EP0028681A1 Security device for self-propelling working units
05/19/1981US4268007 Valve actuating equipment
05/05/1981US4265269 Device for automatically cutting off damaged branches of pneumatic and hydraulic systems
04/1981
04/14/1981US4261450 Failure detecting apparatus for a dual valve
03/1981
03/24/1981US4257455 Double safety valve for stamping presses and the like
03/17/1981US4256017 Differential area electrohydraulic doser actuator
02/1981
02/03/1981US4248134 Reset means for fluid control circuit
01/1981
01/28/1981EP0023120A1 Fluid-operated actuator comprising a detachably mounted fail-safe unit
01/07/1981EP0021977A1 Hydraulic directional valve, especially for servocontrols in aeroplanes and helicopters
01/07/1981EP0021732A1 Hydraulic steering gear for ships
01/07/1981EP0020892A1 Safety circuit
01/06/1981CA1092946A1 Control system
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