| 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) |
|---|
| 12/09/1980 | US4237930 Safety valve |
| 12/02/1980 | CA1090677A1 Hydraulic valve assembly |
| 11/11/1980 | US4232699 Hydro-mechanical failure detection and latching apparatus |
| 11/11/1980 | US4232588 Electrically controlled pipe fracture safety device |
| 11/04/1980 | CA1088848A1 Jam proof piston |
| 10/29/1980 | EP0017868A1 Operation monitored valve arrangement |
| 10/15/1980 | EP0017537A2 Electrohydraulic doser actuator |
| 10/14/1980 | US4227547 Valve safety indicating means |
| 06/17/1980 | CA1079704A1 Valve actuating equipment |
| 05/06/1980 | US4201052 Power transmission |
| 04/22/1980 | CA1076000A1 Hydraulic apparatus |
| 01/01/1980 | US4181148 Self monitoring double valve |
| 09/18/1979 | CA1062747A1 Accumulator for use in a hydraulic system |
| 08/07/1979 | CA1059877A1 Self-actuating fluid holding system |
| 05/29/1979 | CA1055586A1 Flow-sensing switch for backup steering system |
| 04/03/1979 | US4147093 Self-actuating fluid holding system |
| 03/27/1979 | CA1051317A1 Flow compensating emergency hydraulic system |
| 03/13/1979 | US4143583 Redundant EHV fault detector |
| 02/06/1979 | US4138088 Device for controlling hydraulic motors |
| 01/30/1979 | CA1047367A1 Vent control for cylinder mounted load check valves |
| 01/16/1979 | CA1046380A1 Load limiting device |
| 12/19/1978 | US4130049 Vent control for cylinder mounted load check valves |
| 11/28/1978 | US4127144 Self-depressurizing metering valve |
| 09/12/1978 | US4113621 Hydraulic apparatus |
| 08/29/1978 | CA1037522A1 Towing valve arrangement for fail-safe brake system |
| 07/25/1978 | US4102248 Protective system for pneumatically operated devices |
| 06/06/1978 | US4093092 Load limiting device |
| 05/23/1978 | US4090429 Fail-safe fluid control valve |
| 04/25/1978 | US4085587 Fail safe liquid power device |
| 03/28/1978 | US4080873 Servoactuator |
| 11/29/1977 | US4059960 Method and apparatus for testing the movability of valve plugs |
| 11/08/1977 | US4057004 Fail-safe fluid control valve |
| 08/16/1977 | US4041990 Accumulator for use in a hydraulic system |
| 08/16/1977 | US4041842 Dual-solenoid safety valve |
| 06/07/1977 | US4027595 Hydraulic apparatus |
| 02/15/1977 | US4007666 Servoactuator |
| 01/18/1977 | US4003400 Self-depressurizing metering valve |
| 11/30/1976 | US3994648 Endless conveyor spacing control for continuous molding |
| 08/03/1976 | US3972503 Servo pressure operated piston arrangements |
| 06/29/1976 | US3965919 Hydraulic safety valve base |
| 05/25/1976 | US3958657 Flow compensating emergency hydraulic system |
| 03/16/1976 | US3944295 Towing valve arrangement for fail-safe brake system |
| 03/16/1976 | US3943824 Hydraulic system |
| 03/16/1976 | US3943714 Fail-safe limit switch stopping system for air motor |
| 03/02/1976 | US3940931 Automatic control circuit for an electrically powered hydraulic pump |
| 02/10/1976 | US3937254 Device for monitoring control elements |
| 02/03/1976 | US3935792 Pilot pump bleed control for earthmoving scrapers |
| 01/13/1976 | US3931738 Device for monitoring fluid pressure in mechanisms such as hydrostatic fluid bearings |