| Patents for G05D 16 - Control of fluid pressure (11,321) |
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| 07/05/1994 | US5325884 Compressed air control system |
| 06/30/1994 | DE4244292A1 Three- or two-way valve for gas flow |
| 06/29/1994 | EP0604070A1 Magneto-pneumatic timing device |
| 06/29/1994 | EP0603553A1 Method for calibrating a pressure relief valve |
| 06/29/1994 | EP0603395A1 Fluid pressure apparatus |
| 06/28/1994 | US5323799 Fully mechanical pressure relief system |
| 06/23/1994 | DE4243118A1 Maintaining constant press. in hydraulic system |
| 06/15/1994 | CN2169156Y Mini-computer saturated vapour pressure controller |
| 06/14/1994 | US5320124 Regulator adaptable for maintaining a constant partial vacuum in a remote region |
| 06/09/1994 | WO1994012819A1 Electromagnetic type detent device of control valve |
| 06/09/1994 | WO1994012222A1 Valve for the treatment of hydrocephalus |
| 06/09/1994 | DE4328503A1 Vehicle automatic transmission switching valve - controls converter bridge coupling of transmission using slider in pressure chamber moving against force of suspension |
| 06/08/1994 | CN2168275Y Internal-pressure automatic regulating device for sealed container |
| 06/07/1994 | US5318354 Proportional control valve with differential sensing area |
| 06/07/1994 | US5318269 Electronic control system for magnetic valves operated individually or in cascade |
| 05/31/1994 | US5316448 Process and a device for increasing the efficiency of compression devices |
| 05/31/1994 | US5315818 Fuel control system |
| 05/26/1994 | WO1994011797A1 Electro-hydraulic control device and pressure reducing valve |
| 05/26/1994 | WO1994011225A1 Hydraulic pressure relief valve |
| 05/26/1994 | DE4316034C1 Servo-controlled pressure regulating valve - has EM input stage that operates to provide pilot flow to one side of diaphragm moving main poppet to control flow to outlet |
| 05/26/1994 | DE4239364A1 Hydraulic pressure reducing valve with pilot stage and main spool - uses pilot to provide compensating action when valve responds to sudden fall in inlet pressure |
| 05/26/1994 | DE4239321A1 Fork lift stacking truck with hydraulic work platform activator - has electrically operated two-way flow regulation to maintain stable platform load position |
| 05/25/1994 | EP0598252A2 Diaphragm pressure regulators and method of making |
| 05/25/1994 | EP0598114A1 Apparatus and method for insuring and controlling turbulent flow for cleaning ducts |
| 05/24/1994 | CA2056317C High pressure fluid regulator |
| 05/24/1994 | CA1329753C Liquid level control system |
| 05/19/1994 | DE4237932A1 Volume flow control esp. for vehicle steering hydraulics - pumping hydraulic fluid, e.g. oil into main and auxiliary chambers using pump and throttle valve in main chamber |
| 05/18/1994 | EP0597568A1 Pneumatic servos |
| 05/18/1994 | CN1086902A Digital control high voltage constant voltage source device |
| 05/17/1994 | US5311905 Remote dump and safety valve |
| 05/17/1994 | CA2102583A1 Diaphragm for pressure regulators and method of making |
| 05/11/1994 | WO1994010618A1 System for controlling flow through a process region |
| 05/11/1994 | WO1994010617A1 Remote region vacuum regulator |
| 05/11/1994 | WO1994010489A1 Method and apparatus for monitoring recirculation control system performance |
| 05/11/1994 | WO1994009962A1 Pressure controlling and/or regulating device for a fluid medium, in particular air or gas |
| 05/11/1994 | EP0596768A1 Pressurized fluid-flow control valve for passage between two inlet and outlet conduits |
| 05/11/1994 | DE4237901A1 Elektrohydraulische Steuervorrichtung und Druckminderventil Electrohydraulic control device and pressure-reducing valve |
| 05/11/1994 | DE4237806A1 Gas pressure measurement and simulation arrangement - achieves optimal time characteristic selecting control type using manually or automatically defined gas press. and dynamically varied test press. |
| 05/11/1994 | CA2147885A1 Method and apparatus for monitoring recirculation control system performance |
| 05/10/1994 | US5311452 Plasma processing apparatus using capacitance manometer and pressure control method thereof |
| 05/10/1994 | US5309944 Electromagnetic proportional pressure reducing valve |
| 05/05/1994 | DE4236856A1 Pressure measurement system - has electronic switching for the setting valves with a control to store the measured values for an automatic pressure measurement action |
| 05/05/1994 | DE4236460A1 Drucksteuer- und/oder Regelvorrichtung für ein fluidisches Medium, insbesondere Luft oder Gas Pressure controlling and / or regulating device for a fluid medium, in particular air or gas |
| 05/03/1994 | US5307834 Gas flow control regulator |
| 05/01/1994 | CA2093621A1 Method of performance improvement for an i/p servo |
| 04/28/1994 | DE4235849A1 Combination metering valve for low or high viscosity liquids - passes liquid through chamber containing valve needle whose movement is controlled by its pressure and which is attached to a diaphragm |
| 04/27/1994 | EP0521090B1 System for regulating the pressure in an open fluid circuit with a given flow rate |
| 04/26/1994 | US5306076 Proportional control valve with pressure compensation |
| 04/26/1994 | US5305664 Hydraulic control device for an automatic transmission having a shift valve and a control valve coaxially aligned in a valve chamber |
| 04/26/1994 | US5305604 Control valve for bootstrap hydraulic systems |
| 04/21/1994 | DE4304263C1 Suction appts for loading-unloading of bulk material in large scale transportation or for domestic and industrial vacuum cleaner - uses fuzzy-logic control and has dust sensor deflecting loading of air with particles and producing signal proportional to loading |
| 04/21/1994 | DE4234626A1 Pressure-controlled valve for industrial vehicle - has three valve chambers separated by air-tight seal and barrier, and compact housing |
| 04/20/1994 | EP0592945A1 Hydraulic system for an injection moulding machine |
| 04/20/1994 | CA2108616A1 Post-pressure compensator assembly for fluid control valve |
| 04/19/1994 | US5303734 Pressure regulator |
| 04/19/1994 | US5303733 Pressure regulating unit for beverage dispensing system |
| 04/15/1994 | CA2107612A1 Hydraulic device for use in a production machine |
| 04/14/1994 | WO1994007745A1 Integrated cabin pressure controller |
| 04/14/1994 | DE4234036A1 Valve arrangement, esp. for driving hydraulic load on mobile machine - has non=return valve between control valve and press. sensing line or press. chamber |
| 04/13/1994 | EP0591925A2 Electro-pneumatic converter calibration |
| 04/13/1994 | EP0498855B1 Dual mode pneumatic control system |
| 04/12/1994 | CA2068172C Head pressure controller for air conditioning and refrigeration system |
| 04/06/1994 | EP0589905A1 Gas supply system |
| 04/05/1994 | US5299775 Flow modulating control valve assembly |
| 04/05/1994 | US5299420 Redundant control system for a work vehicle |
| 03/31/1994 | DE4332446A1 Fuel pressure regulator having two chambers sepd. by flexible diaphragm |
| 03/31/1994 | DE4232240A1 Fulling inflating vehicle pneumatic tyre - using portable pump coupled to central tyre pressure monitoring device providing required tyre pressure for each wheel |
| 03/31/1994 | DE4231998A1 Pressure regulating valve with proportional solenoid - has spool with displacement provided by proportional solenoid operating a small valve to vary pressure applied to end of valve spool |
| 03/30/1994 | CN2160044Y Piston type gas regulator |
| 03/29/1994 | US5297987 Pressure control servo loop |
| 03/29/1994 | US5297857 Direct acting electro-hydraulic braking system with regulated leak rate |
| 03/29/1994 | CA2026217C Automatic changeover manifold |
| 03/24/1994 | DE4332056A1 Liquid pressure regulation valve - has valve slider exposed to reaction piston and solenoid electromagnet acting in pressure reduction direction. |
| 03/24/1994 | DE4232586A1 Switching valve with regulation of output pressure - has inlet valve stage that closes when output pressure exceeds reference with vent valve stage opening to control pressure |
| 03/24/1994 | DE4231799A1 Chopper amplifier controlled solenoid valve operation - has up to 20 percent variation in frequency generated as pseudo-random signal provided by controller |
| 03/23/1994 | EP0588698A1 Pneumatic pressure controller with electronic control and fluid pressure regulating method using such a regulator |
| 03/23/1994 | EP0588672A1 Implantable valve for the treatment of hydrocephalus |
| 03/17/1994 | WO1994005534A1 Method of establishing reference braking torques |
| 03/17/1994 | DE4230875A1 Pilot controlled pressure regulating valve for vehicle active suspension level control - has external pilot electrically actuated stage controlling input to valve with control spool and axially aligned poppet |
| 03/17/1994 | DE4230874A1 Pressure maintaining valve for active suspension level control - has in line spool arrangement with poppet stage having inset elastomer face seal to provide pressure maintenance |
| 03/16/1994 | EP0587170A2 Electro-pneumatic converter |
| 03/16/1994 | EP0587043A2 Method and arrangement for control and regulation of a pressure generator for several different hydraulic consumers connected in parallel |
| 03/16/1994 | EP0586569A1 Direct acting electro-hydraulic braking system with regulated leak rate |
| 03/16/1994 | CA2106102A1 Electronic control pneumatic pressure regulator and fluid pressure regulating process using said regulator |
| 03/15/1994 | US5293750 Control system for liquefied gas container |
| 03/15/1994 | CA2017982C Pressure control apparatus and method |
| 03/10/1994 | DE4230101A1 Verfahren zur Einstellung von Sollbremsmomenten Method for setting target braking torques |
| 03/09/1994 | EP0586078A2 A gas flow control regulator |
| 03/09/1994 | EP0585810A1 Pressure regulator |
| 03/08/1994 | US5291915 Adjustable pressure relief valve |
| 03/08/1994 | US5291822 Diaphragm for pressure regulators and method of making |
| 03/03/1994 | WO1994004224A1 Oxygen breathing controls |
| 03/03/1994 | CA2140642A1 Oxygen breathing controls |
| 03/01/1994 | CA2104757A1 Pressure regulator |
| 02/23/1994 | CN2157439Y Hydraulic curve regulator for thermal network |
| 02/23/1994 | CN1082493A Pressure relief valve |
| 02/22/1994 | US5287867 Apparatus and method for insuring and controlling turbulent flow for cleaning ducts |
| 02/17/1994 | WO1994003349A1 System for inflating tyres |
| 02/17/1994 | DE4226893A1 Hydraulic pressure control system eg for mould closure unit - has operating piston with functional dia pressurised by pump via switching valve, and eliminates any sudden pressure release shocks |
| 02/17/1994 | DE4226495A1 Electromagnetic operated pressure regulating valve - contains interacting counter=force and control pistons, passages connecting pressure source, load connection and pressure-free container. |