Patents for G05D 7 - Control of flow (11,410)
02/1995
02/15/1995CN2189758Y Gas-flow regulator
02/14/1995US5388984 Method of continuous modulation of a fluid flow rate by means of an electrically controlled sequential valve
02/02/1995CA2167058A1 Liquid material dispenser and valve
02/01/1995EP0636959A2 Hybrid valving system for varying fluid flow rate
02/01/1995EP0636529A1 Flow control valve for pumps of power-assisted steering
02/01/1995EP0355153B1 Liquid level control system
01/1995
01/31/1995US5385505 Pressure maintenance system for substantially sealed space
01/31/1995US5385329 Method and apparatus for enhancing stability in hydraulic flow control
01/30/1995CA2129071A1 Flow control valve
01/26/1995DE4324555A1 Simple control device for adjusting slides, gates, flaps, throttles and valves for flows and ducts or pipelines for flowing media of large cross-sectional area
01/24/1995US5383489 Flow control valve with enhanced flow control piston
01/19/1995WO1995002126A1 Pump controller
01/18/1995EP0566574B1 Intelligent mass flow controller
01/12/1995DE4331057C1 Optimising the stirrer rotational speed in a mechanical metering device
01/11/1995EP0633035A1 Multichannel dosage system
01/11/1995EP0548149B1 Flow controlling device for a discharge system such as a drainage system
01/10/1995US5380485 Apparatus for conducting and controlling chemical reactions
01/10/1995US5379792 Damper with blade for sensing pressure differential
01/10/1995US5379791 Dual-head flow controller and method
01/05/1995DE4320715A1 Valve for low flow rates in a liquid channel
01/05/1995CA2166067A1 Multiple electromagnetic tiles for boundary layer control
01/04/1995EP0632355A2 Discharge flow control system and method in hydraulic pump
01/04/1995EP0632354A2 Pressure vessel for supplying a liquid at a constant flow rate
01/04/1995EP0632255A1 Method to control dosing efficiency in a loss-in-weight feeder
01/04/1995EP0632203A1 Electropneumatic converter with solenoid valve control
12/1994
12/27/1994US5375413 For regulating air flow within a refrigeration device
12/23/1994CA2126403A1 Electropneumatic converter with solenoid valve control
12/22/1994DE4421303A1 Apparatus and process for taking up and letting out a liquid
12/21/1994EP0629568A2 Method and apparatus for controlling the drive of self-excited vibrating parts feeder
12/20/1994US5373737 Sensor device for mass flow controller
12/15/1994DE4319660A1 Servo-valves for the control of volume flows
12/15/1994DE4319015A1 Device for controlling a mass flow
12/14/1994EP0628460A1 Changeover valve and flow control valve assembly having the same
12/07/1994EP0627601A1 Air flow regulating device
12/07/1994EP0626803A1 Fluid regulator
12/06/1994US5370354 For a variable fluid
11/1994
11/29/1994CA1333298C Computer aided tuning of turbine controls
11/24/1994DE4316484A1 Flow limiter for district heating installations
11/23/1994EP0625740A2 Amplifying system for solenoid controlled proportion valve
11/22/1994US5365962 Flow control system and method of operating a flow control system
11/17/1994DE4316759A1 Directional valve with a proportional function
11/15/1994US5363876 Flow control devices
11/10/1994DE4321975C1 Method for monitoring the metering capacity of a metering device
11/09/1994EP0623398A1 Method and apparatus for controlling fume hood face velocity using variable by-pass resistance
11/02/1994EP0622716A2 A method and system for maintaining a desired air flow through a fume hood
11/01/1994CA2041900C Hydraulic drilling jar
10/1994
10/26/1994EP0621523A2 Method for providing high-precision volumetric flow at low flow rate and apparatus therefor
10/26/1994EP0621452A1 Device for the automatic air flow control in an air conditioning installation, ventilating installation or alike
10/19/1994EP0620329A1 Flow regulator particularly for rainwater receiving basin
10/19/1994EP0620199A2 Modular section control for I.S. machine
10/19/1994EP0620197A2 Valve block assembly for I.S. machine
10/19/1994CN1026270C Arrangement of gas carrier carrying fluidable material and operation of same
10/11/1994US5354516 Gas feeder
10/05/1994EP0618429A1 Method and device for dosing, particularly for powders
09/1994
09/29/1994WO1994021938A1 Flow control valve
09/21/1994EP0616276A1 Apparatus for delivering metered quantities of a fluid substance
09/21/1994EP0615592A1 A pressure regulator for maintaining a stable flow level of a fluid
09/20/1994US5348036 Automatic control valve
09/20/1994US5347982 Flame monitor safeguard system
09/15/1994DE4408452A1 Durchflußregler Flow
09/14/1994EP0615099A1 Fluid distribution network with controller
09/13/1994CA2070016C Electric multi-point positioner
09/07/1994EP0614135A1 Liquid dispensing reservoir having a flow rate that is independent of the liquid level
09/01/1994WO1994019734A1 Method and apparatus for enhancing stability in hydraulic flow control
08/1994
08/31/1994CN1091400A Micrc computer control system for pre-watering cement to granulate
08/25/1994DE4405640A1 Powder-feed apparatus, apparatus for electrostatic powder application and powder-flow-rate measuring apparatus
08/25/1994DE4339489A1 Device for shutting off and releasing a gas flow in a gas pipe
08/25/1994DE4305362A1 Method for adjusting a pulsed electromagnetic valve
08/24/1994EP0452437B1 Control valve
08/23/1994US5341307 Apparatus and method for controlling flow rate in vibratory feeders
08/17/1994EP0610418A1 Method for liquid flow measuring and apparatus to practise this method
08/17/1994EP0610226A1 Compressed air control system
08/04/1994WO1994017463A1 Improved automatic recirculation valve
08/04/1994DE4341579A1 Control valve for refrigerating plant
08/03/1994EP0608919A1 Terminal element
08/03/1994EP0608218A1 Methods and devices for control of fluidic systems
08/02/1994US5335166 Method of operating a sand screw
08/02/1994US5333646 Electromagnetic valve for controlling the flow of a fluid in a pipe
08/02/1994US5333638 Automatic recirculation valve
08/02/1994US5333454 Flow control valve unit
08/02/1994CA2113390A1 By-pass valve metering system
07/1994
07/27/1994EP0607451A1 Flow rate control valve and its control method
07/26/1994US5332337 Particle feeding device and method for pyrolytic carbon coaters
07/26/1994US5331995 Flow control system for medical ventilator
07/26/1994CA2098173C Flow regulator
07/26/1994CA1331045C Method for controllably positioning a solenoid plunge
07/21/1994WO1994015686A1 A balloon with accompanying helium supplying cartridge
07/19/1994US5329966 Gas flow controller
07/19/1994US5329965 Hybrid valving system for varying fluid flow rate
07/19/1994CA2042056C Constant flow valve
07/19/1994CA1330835C Terminal element
07/14/1994DE4300545A1 Device for influencing a flow-medium pressure prevailing in an elastic line through which flow takes place
07/13/1994EP0605669A1 Flow control device for infusion systems
07/13/1994CN1089372A Controller for mass flow of materials
07/13/1994CN1025462C 流量控制器 Flow Controllers
07/06/1994CN2171131Y Controller for gas flow
07/06/1994CN2171130Y Controller for gas flow
07/05/1994US5327473 Time period configurable fluid flow control circuit
07/05/1994US5325884 Compressed air control system
06/1994
06/29/1994EP0604236A1 Nitrogen oxide removal control apparatus