Patents
Sitemap › G05 - Controlling; Regulating › G05D - Systems for controlling or regulating non-electric variables › G05D 16 - Control of fluid pressure
Patents for G05D 16 - Control of fluid pressure (11,321)
12/1991
12/03/1991US5069243 Liquid level control system
12/03/1991US5069111 Hydraulic pressure-control device with parallel compression springs
11/1991
11/28/1991WO1991017780A1 Valve system with removable fluid interface
11/26/1991US5068503 High-pressure sensor for fluid conditions and method and apparatus using same
11/26/1991US5067687 Proportional pressure control valve
11/26/1991US5067524 Differential pressure control valve
11/26/1991US5067522 Pressure balance valve spindle
11/21/1991DE4015983A1 Pressure holding valve for desalination plant - has combined pulsation damping and pressure regulating choke element in simplified appts.
11/20/1991CN2089108U Pipeline gas pressure regulator
11/19/1991WO1991018337A1 Automatic control valve
11/19/1991US5065979 Constant current vacuum regulator
11/19/1991US5065789 Back pressure regulating valve for ultra high pressures
11/19/1991US5065788 Accurate high-flow clean regulator with input-pressure balancing
11/19/1991US5065725 Pressure control valve, in particular for fuel injection systems
11/19/1991CA2063832A1 Automatic control valve
11/13/1991EP0455811A1 Variable pressure control valve
11/13/1991EP0455678A1 Indicating device for rotatably mounted component parts.
11/13/1991CN2088628U Monitoring gas burning pressure regulator
11/12/1991US5064314 Vacuum sewerage system with increased lift capabilities having electric air admission controllers
11/12/1991US5063956 Fluid delivery pressure control system
11/07/1991DE4019351A1 Vacuum valve - esp. for chlorine gas dosing in drinking water treatment equipment
11/06/1991EP0252955B1 Pressure regulator with integrated pick-off
11/05/1991US5062454 Spool control valve
11/05/1991US5062449 Vibration dampener for direct acting pressure regulator
10/1991
10/30/1991EP0453994A2 Steering controller with integral parallel control
10/29/1991US5060695 Bypass flow pressure regulator
10/29/1991US5060690 Pre-set regulator assembly
10/24/1991DE4012801A1 Overpressure safety blocking valve - has intermediate pressure regulating stage controlling valve closure cone for safety valve
10/23/1991EP0452620A2 Valve for fluid container
10/23/1991CN2087270U Pressure valve
10/22/1991US5058961 Apparatus for damping pressure fluctuations
10/22/1991US5058626 Hydraulic pressure control valve
10/17/1991DE4011593A1 Adjustable pressure reducing or limiting valve - has spring between valve plates, one driven by stepper motor via spindle and nut
10/17/1991CA2036675A1 Pressure and temperature relief valve and diaphragm valve
10/16/1991EP0452174A1 Electrically operated pressure regulating device for hydraulic circuit
10/16/1991EP0452173A1 Electrically operated pressure regulating device for hydraulic circuit
10/16/1991EP0451347A2 Bypass flow pressure regulator
10/16/1991EP0451326A1 Pressure regulating valve apparatus
10/15/1991US5056558 Dunnage airbag pressure controller
10/15/1991US5056550 Pilot regulator for valves
10/09/1991EP0450108A1 Stroke limiting device
10/08/1991US5055758 Smart fuel pump controller
10/08/1991CA1290308C Vacuum controller
10/03/1991WO1991014941A1 System for regulating the pressure in an open fluid circuit with a given flow rate
10/02/1991EP0380556A4 Improved modulating hydraulic pressure control valve and assembly method therefor
10/02/1991DE4009687A1 Tyre pressure controller esp. for motor vehicle - has compressor, pressure reservoir, and additional reservoir for pressure reduction with feedback to pressure reservoir
10/02/1991CN2085977U High-efficient energy-saving voltage regulator
10/02/1991CN1014171B Droop compensated direct acting pressure regulator
10/01/1991US5052586 Gas cylinder gauge
09/1991
09/26/1991DE4008909A1 Pressure control valve for compressed air brakes - uses spring vale in output chamber to provide non-return characteristic
09/26/1991DE4008749A1 Hydraulic pressure control for vehicle - uses regulator motor in conjunction with adjustable controllers for automatic or manual chassis suspension setting
09/25/1991EP0448308A2 System for controlling ambient pressure within an enclosed environment
09/25/1991EP0447791A2 Method for maintaining a predetermined set pressure value and device for implementing the method
09/25/1991EP0447695A1 Pressure control valve
09/24/1991US5051631 Electromagnetic solenoid valve with variable force motor
09/24/1991US5051063 Leakage-type pressure regulator for a hydraulic circuit
09/24/1991US5050636 Relief valve
09/24/1991US5050397 Air conditioner apparatus with starting control for parallel operated compressors based on high pressure detection
09/24/1991US5050240 Air cushion helmet support and ventilation system with air pressure regulator
09/18/1991EP0446611A2 Gas pressure regulator operating in accordance with the servo principle
09/18/1991CN2085010U Pressure reducing valve of compressed natural gas for automobiles using petrol and natural gas as fuel
09/18/1991CN2085009U Decompression valve
09/17/1991US5048751 Pressure and temperature relief valve and diaphragm valve
09/16/1991CA2038395A1 System for controlling ambient pressure within an enclosed environment
09/12/1991DE4106905A1 Submarine object and action recognition video camera - has pressure equalising and/or adjusting system for internal medium e.g. inert gas
09/12/1991DE4007050A1 Dispensing appts. for gas or liq. - contains two input chambers communicating with pressure chambers of regulator with dividing membrane
09/11/1991EP0446052A2 Method and apparatus of isolating pneumatic panels in liquid application systems
09/10/1991US5047965 Microprocessor controlled gas pressure regulator
09/10/1991US5046400 Control valve system
09/10/1991CA1288659C Piston restraining construction of pressure reducing valve
09/08/1991CA2035919A1 Method and apparatus of isolating pneumatic panels in liquid application systems
09/06/1991CA2011536A1 Control valve
09/04/1991EP0444398A2 Monitoring device for the pressure of a mesure chamber subjected to the pressure of a vehicle tyre
09/04/1991CN1013799B Multifunctional domestic lpg pressure regulator
08/1991
08/28/1991EP0443283A1 Pressure reducing device
08/27/1991US5043953 Pressure compensation device for an immersed volume of gas, in particular for an underwater electroacoustic transducer
08/27/1991US5042886 Method for controlling hydraulic braking pressure for a vehicle
08/27/1991US5042697 Pressure regulators
08/27/1991CA1288015C Pressure reducer for liquid and compressed gases
08/23/1991CA2036709A1 Expansion valve
08/20/1991US5040890 Sheathed particle flow controlled by differential pressure
08/14/1991EP0441344A2 Fluid pressure controller
08/14/1991EP0441066A1 Control valve with displacement-compensating seal
08/14/1991EP0440690A1 Body support system
08/14/1991DE4103194A1 Pressure balancing of two fluids - uses turbine to drive pump to rate pressure
08/13/1991US5038822 Flow rate control valving apparatus
08/13/1991CA1287548C Pressure regulating valve
08/09/1991WO1991012452A1 Proportional pressure control valve
08/09/1991CA2074367A1 Proportional pressure control valve
08/07/1991EP0439992A2 Variable area refrigerant expansion device
08/06/1991US5036878 Gas-cylinder relief valve
08/06/1991CA2035714A1 Control valve with displacement-compensating seal
07/1991
07/31/1991EP0438932A1 Hydromechanical device for fluid flow distribution
07/31/1991EP0438786A2 Gas pressure regulator
07/30/1991US5035357 Pressure control valve and system
07/30/1991US5035346 United liquid-level and pressure regulator for separators
07/30/1991US5035260 Line pressure regulator
07/30/1991CA1286946C Fuel pressure regulator
07/25/1991WO1991010813A1 Hydraulic control device
07/25/1991DE4001675A1 Gas pressure regulator - has double poppet unit to allow operating range to be varied
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