Patents
Patents for F15B 5 - Transducers converting variations of physical quantities, e.g. expressed by variations in positions of members, into fluid-pressure variations or vice versa; Varying fluid pressure as a function of variations of a plurality of fluid pressures or variations of other quantities (494)
09/1986
09/23/1986US4612950 Pressure measuring and regulating device
08/1986
08/13/1986EP0191011A1 Electropneumatic signal converter
08/13/1986EP0190277A1 Electro-pneumatic transducers
06/1986
06/17/1986US4595029 Electro-pneumatic converter
04/1986
04/22/1986US4583567 Valves
04/15/1986US4583029 Variable speed resistive network for a pneumatic servo assembly of an electro-pneumatic converter
04/09/1986EP0177150A2 Electropneumatic converters
04/02/1986EP0175894A2 Non-volatile semiconductor storage cell
04/01/1986US4579137 Electro-pneumatic current to pressure transducer and pneumatic and electronic control circuits therefor
04/01/1986CA1202542A1 Valves
02/1986
02/27/1986WO1986001264A1 Electro-pneumatic transducers
01/1986
01/28/1986US4567394 Electro-pneumatic signal converter
01/15/1986EP0168163A1 Electro-pneumatic converter
01/07/1986CA1198963A1 Valves
12/1985
12/27/1985EP0165282A1 pneumatic sensor for the control of pneumatic cycles.
11/1985
11/26/1985US4554938 Device for converting electric signals into pneumatic signals
10/1985
10/01/1985US4543977 Valves
09/1985
09/18/1985EP0154914A2 Pressure measuring and controlling device
08/1985
08/13/1985US4534376 Electric signal to pressure signal transducer
08/06/1985US4532951 Transducer utilizing electrical and pneumatic signals
07/1985
07/10/1985EP0147552A1 Electro-pneumatic converter
07/09/1985CA1190103A1 Pneumatic controller
06/1985
06/20/1985WO1985002659A1 Improvement to pneumatic sensors for the control of pneumatic cycles
06/11/1985US4522220 Diaphragm module for pneumatic control systems
04/1985
04/30/1985US4513826 Hydraulic control arrangement for actuating lifting mechanism of an agricultural machine
04/23/1985US4512357 Pressure transducer
03/1985
03/14/1985WO1985001133A1 Electric signal to pressure signal transducer
01/1985
01/08/1985US4492246 Solid state current-to-pressure and current-to-motion transducer
11/1984
11/27/1984CA1178538A1 Turboflapper nozzle systems
10/1984
10/16/1984CA1176349A1 Electro-pneumatic signal converter
10/03/1984EP0120594A2 Electro-pneumatic transducer assemblies
08/1984
08/22/1984EP0116166A1 Force balanced two-way control valve
07/1984
07/04/1984EP0112625A1 Pressure regulating and balance valves
07/04/1984EP0112624A1 Balance valves
06/1984
06/12/1984US4453559 Pneumatic controller
04/1984
04/17/1984US4442854 Electro-pneumatic signal converter
03/1984
03/14/1984EP0102528A2 Voltage to pressure transducer
03/06/1984CA1163168A1 Electro-hydraulic control structure
01/1984
01/10/1984US4425509 Turboflapper nozzle systems
12/1983
12/27/1983CA1159324A1 Fluid signal transmitting apparatus
12/27/1983CA1159292A1 Slice lip adjustment device
11/1983
11/29/1983US4417599 Vacuum signal integrator
09/1983
09/21/1983EP0088915A1 Hydraulic control device for actuating the lifting device of an agricultural vehicle
09/14/1983EP0088371A2 Device for transforming an electric signal into a pneumatic pressure signal
08/1983
08/17/1983EP0085945A1 Membrane module for a pneumatic control system
07/1983
07/27/1983EP0084214A2 Electromagnetic-pneumatic current to pressure transducer
04/1983
04/27/1983EP0077765A1 Pneumatic controller
03/1983
03/16/1983EP0074187A1 Fluid control systems
02/1983
02/22/1983US4374487 Pilot with cantilevered spring
02/16/1983EP0072133A2 Vacuum signal regulator
02/15/1983CA1141186A1 Leverless pressure transducer
11/1982
11/10/1982EP0064357A1 Relay valves with output pressure predominance
10/1982
10/05/1982US4352367 Electro-hydraulic control structure
07/1982
07/28/1982EP0056450A2 Electro-pneumatic transducer
05/1982
05/18/1982US4329910 Transducer assembly providing position output proportional to electrical input signal
02/1982
02/24/1982EP0046431A1 Electrohydraulic servovalve
02/09/1982US4314578 Fluid signal transmitting apparatus
11/1981
11/17/1981US4300352 Hydraulic pressure integrator
09/1981
09/15/1981CA1109099A1 Self-relieving fluid coupling
06/1981
06/23/1981CA1103478A1 Method and apparatus for overrange protection of the transducer in a differential pressure transmitter
06/16/1981US4273150 Leverless pressure transducer
06/09/1981US4271859 Temperature sensor
03/1981
03/11/1981EP0024409A1 A signal converting unit intended to be incorporated in a pneumatic control system
03/10/1981US4254790 Pressure control unit for the control of the pressure of at least one gas depending on the pressure of another gas
03/03/1981US4253603 Temperature responsive control apparatus
02/1981
02/24/1981US4252651 Dialysis machine
09/1980
09/04/1980WO1980001826A1 A signal converting unit intended to be incorporated in a pneumatic control system
08/1980
08/26/1980US4219042 Pneumatic relay
08/12/1980US4216795 Position feedback attachment
07/1980
07/22/1980US4213478 Transducer assembly providing pneumatic output proportional to electrical input signal
06/1980
06/24/1980CA1080080A1 Servo valve
06/17/1980US4207914 Fluid relay apparatus
05/1980
05/06/1980US4201245 Dwell relay
04/1980
04/22/1980US4199130 Valve arrangement
01/1980
01/29/1980CA1070578A1 Electronic to pneumatic actuator or transducer
12/1979
12/18/1979CA1068314A1 Actuating device
11/1979
11/13/1979CA1066088A1 Pneumatic detector for chromatogaphic analyzer
10/1979
10/30/1979US4172464 Vibration resistant flapper and nozzle
01/1979
01/23/1979US4135407 Method and apparatus for overrange protection of the transducer in a differential pressure transmitter
10/1978
10/03/1978US4118612 Actuating device for an invalid of plural electrical control circuits
08/1978
08/15/1978US4106510 Servo valve
06/1978
06/20/1978US4095455 Pneumatic detector for chromatographic analyzer
11/1977
11/22/1977US4059130 Proximity sensor with zero adjustment
08/1977
08/09/1977US4040290 Vibration amplitude transducer
07/1977
07/05/1977US4033171 Pneumatic detector for chromatographic analyzer
06/1977
06/07/1977US4027481 Fluid pressure responsive transducer apparatus
02/1977
02/08/1977US4006721 Control apparatus for exhaust gas recirculation system
10/1976
10/19/1976US3986437 Double-acting rotary hydraulic jack
09/1976
09/28/1976US3982554 Electromagnetic flapper valve
02/1976
02/24/1976US3939758 Pressure sensor
02/17/1976US3939231 Carburettors and associated components
01/1976
01/20/1976US3933080 Pneumatic actuators
01/13/1976US3931832 Timing device for pneumatic control systems
01/13/1976US3931738 Device for monitoring fluid pressure in mechanisms such as hydrostatic fluid bearings
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