| Patents for G05D 16 - Control of fluid pressure (11,321) |
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| 02/28/1991 | DE4025578A1 Flow or pressure regulating valve - has inbuilt by=pass port providing fail=safe function |
| 02/28/1991 | CA2019795A1 Digital notch filter |
| 02/27/1991 | EP0414145A2 Fundamental gauge casing for high-purity gases |
| 02/27/1991 | CN2072180U Auto-adjusting valve |
| 02/27/1991 | CN2072179U Controller for fluid pressure |
| 02/20/1991 | EP0413172A1 Method to control the pressure with a magnetic valve. |
| 02/19/1991 | US4993447 Pressure-regulating method and apparatus |
| 02/12/1991 | US4992027 Hydraulic control valve for fuel pumping system |
| 02/12/1991 | US4991621 Pressure regulator |
| 02/12/1991 | US4991620 Tank blanketing valve |
| 02/07/1991 | WO1991001522A1 Compensated pressure controller |
| 02/07/1991 | DE3925405A1 Pressure control unit esp. for vehicle windscreen wiper - has solenoid controlled relief valve to control pressure in load stage |
| 02/06/1991 | EP0356441B1 Hydraulic pressure-regulating device, in particular for powershift gearbox in motor vehicles |
| 02/05/1991 | US4990076 Pressure control apparatus and method |
| 01/31/1991 | DE4019817A1 Diaphragm controlled pressure regulator valve - has ball shaped flexible element that is gas filled to provide reference pressure |
| 01/31/1991 | DE4003319A1 Automatic regulation of oil concentration in refrigerator evaporator - has diaphragm responding to pressure difference to control concentration |
| 01/30/1991 | EP0410570A2 Air conditioner apparatus with starting control for parallel operated compressors based on high pressure detection |
| 01/29/1991 | US4988074 Proportional variable force solenoid control valve |
| 01/29/1991 | US4987933 Fluid flow control method and apparatus for minimizing particle contamination |
| 01/29/1991 | US4987916 Liquid flow control device |
| 01/24/1991 | WO1991000970A1 Hose clamp |
| 01/23/1991 | EP0409664A2 Pressure regulators and valve actuators therefor |
| 01/23/1991 | EP0408844A2 Pressure regulating procedure, in particular in a brake installation of a vehicle |
| 01/23/1991 | CN2069958U Automatic two-way stabilized voltage multi-functional jetting device |
| 01/23/1991 | CN1011329B Piston structure of reducing valve |
| 01/22/1991 | US4986738 Airflow control system pump and housing |
| 01/22/1991 | US4986298 Vacuum regulator with antibinding valve stem connector assembly and method |
| 01/22/1991 | CA2021370A1 Ultra precision pressure regulator |
| 01/17/1991 | DE4015063A1 Membrane controlled differential pressure regulator valve - has internal spring biassing system for valve plate actuator membrane, e.g. for hot water heating system |
| 01/16/1991 | EP0407721A1 Device for the damping of pressure pulsations |
| 01/16/1991 | CN2069580U Row type cooling water controller for material-beating of bottle-making machine |
| 01/15/1991 | US4984603 Flow control valve assembly |
| 01/15/1991 | US4984602 Pressure control apparatus and apparatus for effecting extraction chromatographic separation, and fractionation by employing the same |
| 01/10/1991 | WO1991000562A1 Doser system for regulating pressure in a control chamber of a test stand |
| 01/10/1991 | DE3921667A1 Pneumatic pressure regulator with switchable output pressure - has delivery valve interacting with reference pressure surface with pressure-isolated regions |
| 01/08/1991 | US4982758 Regulator with fluid supported and operated diaphragm |
| 01/08/1991 | US4982726 Electronic endoscope system with suction channel of controllable strength of suction |
| 01/08/1991 | US4982466 Body support system |
| 01/02/1991 | EP0405339A2 Diaphragm controlled differential pressure control valve |
| 01/02/1991 | CN2068659U Energy-saving thermostatic valve for water heating system controlled by indoor temp. |
| 01/02/1991 | CN2068629U Small oxygen feeder |
| 01/02/1991 | CA1278489C High response unloading valve |
| 12/27/1990 | EP0403829A2 Rotary compressor with oleopneumatic delivery control device |
| 12/25/1990 | US4979540 Cartridge-type direct loaded safety and pressure-relief valve having flow path for preventing supersonic flow and minimizing valve hysteresis |
| 12/25/1990 | US4979537 Pressure regulator |
| 12/19/1990 | EP0403319A1 Manometric regulator with leak for hydraulic circuit |
| 12/19/1990 | CN1047928A Multifunctional domestic lpg pressure regulator |
| 12/19/1990 | CA2000188A1 Doser system for regulating pressure in a control chamber of a test stand |
| 12/18/1990 | US4978370 Method and apparatus for reduction of the pressure in a liquid mixture |
| 12/13/1990 | WO1990015377A1 Pressure regulator for spray cans and membrane herewith applied |
| 12/12/1990 | EP0402018A1 Pressure control apparatus |
| 12/12/1990 | CN2067344U Improved pressure adjuster |
| 12/06/1990 | DE3942532A1 EM actuator controlling pneumatic diaphragm actuator - has linear actuator to displace valve controlling pressure in pneumatic actuator chamber |
| 12/04/1990 | US4974630 Gas pressure regulator having side-drafted throttling means |
| 12/04/1990 | US4974629 Gas pressure regulator for saving resetting operation |
| 11/30/1990 | CA2017805A1 Pressure regulator for spray cans and membrane herewith applied |
| 11/29/1990 | DE4015780A1 Compression control for electromagnetic reciprocating-piston pump |
| 11/29/1990 | DE3917243A1 Pressurised oil delivery arrangement for transmission system - has adjustable pump using low drive power and smaller components |
| 11/28/1990 | CN2066541U Adjustable static relief pressure valve |
| 11/28/1990 | CN1047374A Boost modified, drop compensated direct acting pressure regulator |
| 11/27/1990 | US4972872 Relief valve |
| 11/27/1990 | US4972871 Boost modified, droop compensated direct acting pressure regulator |
| 11/27/1990 | US4972870 Multi-function static-errorless pressure control valve |
| 11/27/1990 | US4972868 Flow restrictor and diverter for direct acting pressure regulator |
| 11/22/1990 | EP0398862A2 Signal converter |
| 11/22/1990 | EP0398858A2 Boost modified, droop compensated direct acting pressure regulator |
| 11/22/1990 | EP0398050A2 Pressure regulator |
| 11/20/1990 | US4971116 Pressure control valve |
| 11/20/1990 | US4971114 Electromagnetic proportional pressure control valve |
| 11/20/1990 | US4971104 Self powered servo actuated backpressure regulating valve |
| 11/20/1990 | US4971049 Pressure sensor control device for supplying oxygen |
| 11/20/1990 | US4970941 Electrical measured value processing for a control valve |
| 11/20/1990 | CA1276523C Fuel pressure regulator |
| 11/20/1990 | CA1276522C Automatically set pressure reducing valve |
| 11/15/1990 | WO1990013860A1 I/p converter with simulated compensation |
| 11/15/1990 | CA2016694A1 Boost modified, droop compensated direct acting pressure regulator |
| 11/13/1990 | CA1276321C Patient support apparatus |
| 11/07/1990 | CN2065272U Externally-regulating energy-saving pressure reducing valve for liquefied petroleum gas |
| 11/06/1990 | US4968218 Method of controlling the air output of a screw compressor |
| 11/06/1990 | US4967550 Active control of unsteady motion phenomena in turbomachinery |
| 10/31/1990 | EP0395229A2 Submodulation of a pulse-width modulated solenoid operated control valve |
| 10/31/1990 | DE3914278A1 Pressure regulator with incorporated valve - has slider controlling different couplings to determine pressure regulator function |
| 10/31/1990 | CN2064906U Pressure type control instrument |
| 10/31/1990 | CN1046590A Guiding gas-pressure controlling valve |
| 10/30/1990 | US4966307 Integrated multifunction regulator station for gas supply to a secondary mains |
| 10/30/1990 | US4966195 Transmission pressure regulator |
| 10/30/1990 | US4966188 Pneumatically operated gas-pressure controller |
| 10/30/1990 | US4966183 Pressure regulator |
| 10/25/1990 | DE3922978A1 System for controlling liquid or vapour pressure in buffer vessel - uses electronic comparator and three=way membrane valve |
| 10/25/1990 | CA2015177A1 Pipeline pressure control system |
| 10/24/1990 | EP0393248A2 Transmission pressure regulator |
| 10/18/1990 | DE4007427A1 Vacuum setting for vacuum forming of plastics - with membrane between setting chamber and central chamber leading to forming plant |
| 10/18/1990 | DE3918418A1 Electrical measurement value acquisition for control valve - using pressure sensors interacting with chamber of holder body, enabling use of standard value |
| 10/17/1990 | EP0392313A2 Fuel pressure regulator valve |
| 10/11/1990 | WO1990012198A1 Modulator adjustment device |
| 10/11/1990 | CA2030802A1 Modulator adjustment device |
| 10/10/1990 | EP0391332A2 Pressure control valve device |
| 10/09/1990 | US4961441 Method and system for controlling a pressure regulator |
| 10/09/1990 | CA1275023A1 Control device for at least one hydraulically operated load |
| 10/03/1990 | EP0390306A1 Valve, and set point pressure controller utilizing the same |