| 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) |
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| 11/22/1995 | EP0683441A1 Electronic watch with minute repetition function |
| 10/11/1995 | CN1109949A Electricity/air pressure converter |
| 08/22/1995 | US5443089 Hydraulic amplifiers with reduced leakage at null |
| 08/22/1995 | CA1336784C Current to pressure transducer employing magnetic fluid |
| 08/08/1995 | US5439021 Electro-pneumatic converter |
| 05/17/1995 | EP0653567A1 Electricity/air pressure converter |
| 01/17/1995 | US5381817 Mechanical flexure for motion amplification and transducer with same |
| 01/04/1995 | EP0632203A1 Electropneumatic converter with solenoid valve control |
| 12/23/1994 | CA2126403A1 Electropneumatic converter with solenoid valve control |
| 12/22/1994 | WO1994029600A1 Pneumatic instrument particle trap |
| 10/26/1994 | CN2180819Y Plug type connection parts for plate material |
| 09/07/1994 | CN1025875C Fluid cell arrangement for compressed air motors |
| 09/06/1994 | US5343894 Piezo valve |
| 08/02/1994 | US5333637 Pneumatic instrument particle trap |
| 06/07/1994 | US5318271 Piezo valve |
| 05/18/1994 | EP0597568A1 Pneumatic servos |
| 05/01/1994 | CA2093621A1 Method of performance improvement for an i/p servo |
| 04/13/1994 | EP0591925A2 Electro-pneumatic converter calibration |
| 03/16/1994 | EP0587170A2 Electro-pneumatic converter |
| 12/22/1993 | EP0575305A1 Pneumatic distance/pressure transducer |
| 11/30/1993 | US5265637 Mechanical flexure for motion amplification and transducer with same |
| 11/02/1993 | US5257639 Electropneumatic positioner |
| 10/13/1993 | EP0565510A2 Electro-pneumatic signal transducer |
| 09/22/1993 | EP0560894A1 Apparatus and method for determining the linear position of a hydraulic cylinder. |
| 09/01/1993 | EP0558192A2 Analog output electro-pneumatic transducer |
| 08/11/1993 | EP0554415A1 Electropneumatic positioner. |
| 06/16/1993 | EP0547022A1 Piezo-electric valve |
| 06/01/1993 | US5215111 Method of performance improvement for an I/P servo |
| 05/04/1993 | US5208772 Gate EEPROM cell |
| 05/04/1993 | US5207737 Analog output electro-pneumatic transducer |
| 04/28/1993 | EP0538771A1 Method for detecting wear in moving mechanical parts |
| 04/21/1993 | EP0538236A1 Piezoelectric valve |
| 04/15/1993 | WO1993007444A1 Apparatus and method for determining the linear position of a hydraulic cylinder |
| 03/16/1993 | US5193345 Distributor of a fluid under pressure |
| 12/11/1992 | WO1992022860A1 Electropneumatic positioner |
| 12/11/1992 | CA2089176A1 Electropneumatic positioner |
| 11/17/1992 | US5163463 Mechanical flexure for motion amplification and transducer with same |
| 11/03/1992 | US5159949 Electropneumatic positioner |
| 11/03/1992 | CA1309743C Railway car pressure control valves |
| 10/13/1992 | US5154207 Pressure control valve and transducer package |
| 08/04/1992 | CA1306043C Zero and span adjustment circuit for current/pressure transducer |
| 05/20/1992 | CN2104952U Hydraulic pump |
| 04/14/1992 | US5103644 Bifluidically controlled fluid distributor |
| 03/25/1992 | CN2099870U Pressure automatic controller |
| 01/22/1992 | EP0467873A2 Mechanical flexure for motion amplification and transducer with same |
| 01/22/1992 | EP0467724A1 Distributor for fluid under pressure |
| 01/22/1992 | EP0467723A1 Fluid distributor for a two-fluid control |
| 12/31/1991 | US5076314 Nozzle flapper mechanism |
| 07/04/1991 | DE4042190A1 System for controlling energy characteristics of power press - has pneumatic-hydraulic cylinders on each side of ram to balance effects of ram mass |
| 07/04/1991 | DE4042189A1 Controlling energy characteristics of power press - by energy transfer between air-hydraulic intensifier and hydraulic cylinder linked to drive connecting rods |
| 07/04/1991 | DE4042188A1 Controlling energy characteristics of power press - by pneumatic cylinders on each side of RAM to balance effects of RAM mass |
| 06/11/1991 | US5022425 Sensitive electrical to mechanical transducer |
| 05/28/1991 | US5018435 Fluid cell arrangement for compressed air motors |
| 05/07/1991 | US5012835 Nozzle flapper mechanism |
| 01/16/1991 | CN1048584A Fluid cell arrangement for compressed air motors |
| 01/15/1991 | US4984600 Self correcting nozzle useful with current to pressure transducer |
| 01/09/1991 | EP0406478A1 Power cell arrangement for pressurized-air motors |
| 01/05/1991 | CA2018077A1 Fluid cell arrangement for compressed air motors |
| 12/04/1990 | CA1277191C Pneumatic interface apparatus |
| 10/23/1990 | US4965475 Offset adjust for moving coil transducer |
| 09/25/1990 | US4959581 Servo valve having a piezoelectric element as a control motor |
| 08/21/1990 | US4949746 Fluid control valves |
| 08/08/1990 | EP0380762A1 Current to pressure transducer employing magnetic fluid with self-correcting nozzle |
| 06/27/1990 | EP0375093A2 Sensitive electrical to mechanical transducer |
| 06/23/1990 | CA2005111A1 Sensitive electrical to mechanical transducer |
| 06/19/1990 | US4934401 Nozzle flapper mechanism |
| 05/30/1990 | EP0370667A2 Current to pressure transducer with enhanced performance features |
| 05/22/1990 | US4926896 Sensitive electrical to mechanical transducer |
| 03/07/1990 | CN2054104U Hydraulic type force converter |
| 03/06/1990 | US4905720 Current-to-pressure transducer with enhanced performance features |
| 02/06/1990 | US4898200 Electropneumatic transducer |
| 01/10/1990 | EP0350177A1 Fluid control valves |
| 12/27/1989 | EP0348266A1 Detection of a glass sheet |
| 12/19/1989 | CA1263953A1 Voice coil assembly for an electro pneumatic converter |
| 11/28/1989 | US4883089 Railway car pressure control valves |
| 07/18/1989 | US4848726 Apparatus for transducing an electrical signal into a pneumatic signal |
| 06/06/1989 | US4836011 Zero and span adjustment circuit for current/pressure transducer |
| 05/17/1989 | EP0316292A2 Zero and span adjustment circuit for current/pressure transducer |
| 04/18/1989 | US4821760 Voice coil assembly for an electropneumatic converter |
| 01/03/1989 | US4794796 Balancing-vessel transducer with inter-communicating chambers for the conversion of a pneumatic signal, low strength notwithstanding, into a quantifiable output of whatever nature |
| 08/10/1988 | EP0155953B1 Electric signal to pneumatic signal transducer |
| 06/14/1988 | US4751400 Electrohydraulic switching device |
| 02/02/1988 | US4722360 Fluid regulator |
| 12/22/1987 | CA1230661A1 Variable speed resistive network for a pneumatic servo assembly for an electro-pneumatic converter |
| 12/01/1987 | CA1229767A1 Electric signal to pressure signal transducer |
| 11/10/1987 | CA1229150A1 Solid state current to pressure transducer |
| 10/14/1987 | EP0241431A2 Balancing-vessel transducer with intercommunicating chambers for the conversion of a pneumatic signal into a quantifiable output |
| 09/16/1987 | EP0236742A1 Servo valve for pneumatic-pressure control |
| 09/16/1987 | EP0165282B1 pneumatic sensor for the control of pneumatic cycles |
| 09/08/1987 | CA1226591A1 Electro-pneumatic converter |
| 08/11/1987 | CA1225450A1 Pneumatic servo assembly for an electro-pneumatic converter |
| 07/14/1987 | CA1224260A2 Pneumatic servo assembly for an electro-pneumatic converter |
| 07/02/1987 | DE3544989A1 Modulator for acting on at least one adjusting element actuated by positive pressure or vacuum |
| 06/23/1987 | US4675567 Electro-pneumatic pressure converter |
| 05/27/1987 | CN86106721A Electric-pneumatic pressure converter |
| 04/21/1987 | US4658849 Pneumatic sensors for the control of pneumatic cycles |
| 03/10/1987 | US4649359 Explosion-proof electro-displacement converter device |
| 11/25/1986 | US4625139 Electro-pneumatic signal converter |
| 11/04/1986 | CA1213497A1 High-low pressure pilot |
| 10/21/1986 | US4617952 Switching valve and an electro-pneumatic pressure converter utilizing the same |