Patents for G05D 7 - Control of flow (11,410)
07/1992
07/01/1992EP0491684A1 Flow control system.
06/1992
06/30/1992CA1304335C Metering valve temperature compensation
06/24/1992EP0286649B1 Proportional valve control apparatus for fluid systems
06/23/1992US5124934 Constant feed water device
06/23/1992US5123592 Pressure independent control for air distribution system
06/17/1992EP0490027A2 Pressure compensated control valve
06/17/1992DE4039326A1 Dosing and=or controlling flow of liquid or gas - using cylindrical body contg. stepped piston with inlet and outlet near step for operation independent of pressure in inlet and outlet
06/16/1992CA1303703C Flow control device for a reciprocating feed pump
06/16/1992CA1303702C Condition responsive pump control utilizing integrated, commanded, and sensed flowrate signals
06/10/1992EP0489150A1 Method and device for controlling air supply in a network of passages.
06/09/1992US5119987 Ventilating apparatus
06/09/1992US5119683 Solenoid controller with flyback pulses useful for diagnostics and/or control
06/03/1992EP0488318A2 Control method of and apparatus for material charging at top of blast furnace
06/02/1992CA1302204C Time control device for water conditioning apparatus
06/02/1992CA1302183C Flow rate meter and automatic animal feeder installation employing such flow meter
05/1992
05/29/1992WO1992009023A1 Process and device for mass flow regulation
05/29/1992WO1992009017A1 Methods and devices for control of fluidic systems
05/29/1992WO1992008666A1 Method and device for preventing the puncture of a load-sensing and pressure-compensating control system for a hydraulic crane
05/20/1992CN2105092U Carbon-dioxide flow controller
05/19/1992CA1301049C Noncontrolling type valve
05/14/1992WO1992008177A1 Hybrid control method and system for controlling the flow of liquid coating material
05/14/1992DE4035620A1 Verfahren und vorrichtung zur massenstromregelung Method and device for mass flow control
05/13/1992EP0485335A1 Spring-loaded fluid control device, controlled by the fluid pressure
05/06/1992EP0483401A1 Device, e.g. a lung ventilator, for controlling a fluid flow, particularly a gas flow
05/06/1992EP0483311A1 Automatic control valve
05/05/1992CA1300088C Apparatus and method for dispensing fluid materials
04/1992
04/28/1992US5108070 Flow control solenoid valve apparatus
04/28/1992US5107886 Constant flow orifice valve
04/21/1992US5107441 System for evaluating the flow performance characteristics of a device
04/16/1992WO1992006422A1 Method and device for the automatic regulation of a fluid flow rate in a fluid distribution network as a function of pressure variations
04/16/1992DE4032661A1 Control of fluid mass flow by coriolis flowmeter - acts on speed of pump to restore desired flow rate after correction of temporary excessive deviation
04/16/1992DE4030539A1 Time-controlled powder dosing appts. - useful for powder feed to plasma powder weld deposition torch
04/15/1992EP0480080A1 Coating apparatus
04/15/1992EP0479921A1 Flight craft with fluid systems which incorporate butterfly valves, and butterfly valve methods and apparatus.
04/15/1992EP0326581B1 Flowmeter for measuring volumetric flow
04/08/1992CN2101273U Infrared controlled automatic flusher
04/07/1992US5103401 System for precisely controlling discharge rates of loss-in-weight feeder systems
04/07/1992US5101862 Rotary actuator and valve control system
04/07/1992US5101854 Low-output flow regulator
04/07/1992US5101670 Automated proportional integrated sampling system
04/05/1992CA2052670A1 Variable gate flow analyzing method and apparatus
04/02/1992DE4029620A1 Dispensing method e.g. for fluid, bulk or granular material - using variation of dispenser delivery rate from initial demand dependent value to reduce values near end of process
04/01/1992EP0477811A2 Liquid delivery system
04/01/1992EP0305435B1 Portable and autonomous instrument for analyzing a gaseous composition by means of flame spectrophotometry
04/01/1992CN1059975A Constant flow regulator
04/01/1992CN1016116B Method and apparatus for measuring liquid
03/1992
03/31/1992US5100100 Fluid control and shut off valve
03/31/1992US5099875 Fluid flow regulator
03/26/1992DE4030159A1 Flow regulating valve with circular gap forming throttle - has piston responding to pressure difference to control orifice under spring pressure
03/24/1992US5098667 Particulate flow control
03/24/1992US5098666 Hydraulic chambers with hermetic seals, feeder pipes, storage containers and controllers
03/24/1992US5097863 Flow control apparatus
03/19/1992WO1992004667A1 Flow controlling device for a discharge system such as a drainage system
03/18/1992EP0475743A1 Pressure-compensated infusion regulator
03/18/1992EP0475097A2 Flow governor
03/12/1992DE4028794A1 Measuring installation choking waste water throughput - contains inductive flow meter, electrically driven slider and electronic controller
03/11/1992EP0473919A1 Device for measurement and dosage of mass flows
03/11/1992CN1059397A Pressure-responsive fluid saving device
03/04/1992EP0473001A1 Device for controlling of fluid flow and for opening a conduit for pressurized liquids
03/04/1992EP0472798A2 Pressure-responsive fluid saving device
03/03/1992US5092739 Distributing a fluid over land
03/03/1992US5092230 Steam infusion float control
03/03/1992US5092227 Apparatus for controlling the ventilation of laboratory fume hoods
03/01/1992CA2194855A1 Process gas distribution system and method
03/01/1992CA2034818A1 Self-adjusting suction regulator
02/1992
02/27/1992DE4026442A1 Flow regulator for flowing liquids - has elastic annular ring with central journal and is easier to set to desired rate
02/25/1992US5090444 Valve particularly useful for flushing fluid lines
02/21/1992CA2025512A1 Pressure-responsive fluid saving device
02/20/1992WO1992002748A1 Sanitary fittings
02/19/1992EP0471341A2 Flow regulation valve, especially for gasified fluids
02/19/1992CN1015574B Adjustable device for flow
02/18/1992CA1295917C Gas governor apparatus and gas piping system
02/12/1992EP0470743A1 Electrochemical control valve
02/11/1992US5086806 Automatic flow control system and flood protector
02/06/1992DE4024482A1 Flow control valve - has ball control element in bore between inlet and outlet channels with annular gap acting as choke
02/05/1992EP0469391A1 Sanitary armature
02/04/1992US5085248 Flow control device
01/1992
01/29/1992EP0467914A1 Method for producing a heatable and refrigerable element for a system handling small quantities of liquid, and an element manufactured by the method.
01/23/1992WO1992000813A1 Constant liquid delivery device
01/23/1992WO1992000768A1 Fluid control apparatus and methods
01/22/1992EP0466871A1 Variable air volume ventilating system and method of operating same
01/15/1992EP0465857A2 Stepper motor throttle controller
01/15/1992CN2093414U Heat quantity controller for heating system
01/14/1992US5081600 Loss-in-weight feeder system
01/14/1992US5080131 Mass flow controller
01/14/1992CA1294345C Electronic controlled gas valve and method
01/09/1992DE4020787A1 Producing actual flow value for gaseous medium control - by drawing calibrated flow of atmospheric air into parallel flow subsequently returned to flow channel
01/08/1992EP0464476A1 Flow rate regulating mechanism for gas lighters and similar devices and method of producing a microcell polymer filter for use therein
01/08/1992CN1057713A Flow rate regulating mechanism for gas lighters and similar devices and method of producing microcell polymer filter
01/08/1992CN1015290B Automatic regulating method and apparatus of glass flow in floatation production
01/07/1992US5078173 Droop compensated bypass valve
01/03/1992WO1992000492A1 Method and device for controlling air supply in a network of passages
01/03/1992CA2065252A1 Method and device for controlling air supply in a network of passages
01/02/1992DE4019503A1 Control of regulator valve of central heating system - is based upon valve stove and flow characteristic held in memory
01/01/1992CN2092117U Valve with flow changeable with temp
12/1991
12/31/1991US5076890 Method for pulp quality control and regulation
12/27/1991EP0462432A2 Integrated process control valve
12/27/1991CA2044980A1 Slurry distributor
12/18/1991EP0252138B1 Adjustable flow regulating valve
12/18/1991CN1057104A Method for producing heatable and refrigerable element for system handling small quantities of liquid, and element manufactured by method