Patents
Patents for G01F 7 - Volume-flow measuring devices with two or more measuring ranges; Compound meters (817)
01/2001
01/31/2001CN1282417A Flowmeter
12/2000
12/27/2000EP1061849A1 Fluid flow probe and transducer
11/2000
11/22/2000CN2407331Y Accurate automatic oil-gas-water flowmeter
11/22/2000CN2407330Y High accurate automatic oil-water flowmeter
10/2000
10/04/2000EP1041367A1 Flowmeter
09/2000
09/07/2000DE19906632A1 Method for monitoring flow speeds using calorimetric flow sensor by reducing heat action in proximity of the heated area as result of reduced volume exchange of flowing medium due to interaction of cylinder
08/2000
08/03/2000WO2000044666A1 Metering means for fuel pumps
07/2000
07/12/2000CN1260039A Gasmeter
06/2000
06/27/2000US6079627 Method and apparatus for measuring airflows in HVAC systems
06/27/2000US6079263 Compound water meter having impeller rotatably supported between main meter measuring and switch-over valve insets
05/2000
05/31/2000DE19839958C1 Durchflußmeßgerät Flowmeter
05/31/2000DE19839952C1 Durchfluß-Meßvorrichtung Flow-measuring apparatus
05/25/2000DE19839954C1 Durchflußmesser Flowmeter
05/23/2000US6065492 Gas mass flow metering valve
05/17/2000EP1000323A1 Gasmeter
05/04/2000DE19839956C1 Fehlerdetektor für Leitungssysteme Error detection for piping systems
03/2000
03/29/2000CN1050902C Complex water meter
03/16/2000WO2000014491A1 Flow measuring device
03/16/2000WO2000014490A1 Flowmeter
03/16/2000WO2000014488A1 Fault detector for pipings
03/16/2000WO2000014487A1 Flow measuring arrangement
01/2000
01/12/2000EP0971211A2 Exhaust gas sampling method using a flow rate detector with variable Venturi
01/12/2000EP0529053B1 Delivery of aerosol medications for inspiration
01/11/2000US6012483 Switch-over valve having pivot axle articulated closure wings
01/11/2000CA2147619C Method and apparatus for measuring the flow rate of a medium flow
12/1999
12/02/1999WO1999061872A1 Compound water meter
12/02/1999DE19823310A1 Verbundwasserzähler Composite water meter
11/1999
11/24/1999EP0959330A2 Transmitting system for a positive displacement flowmeter
11/16/1999US5983700 Calibration method of a flow sensor output
11/09/1999CA2047735C Flowmeter
10/1999
10/21/1999DE19914576A1 Enlarging measuring range of vol. flow meter units for fluid with throttle orifice so that flowing fluid pressure before and after valve is measured and pressure difference is converted to signal
09/1999
09/30/1999WO1999049284A1 Method and apparatus for measuring airflows in hvac systems
09/16/1999WO1999045840A1 Fluid flow probe and transducer
06/1999
06/30/1999CN1221107A Combined water meter
06/24/1999WO1999031467A1 Flowmeter
06/24/1999CA2310050A1 Flowmeter
06/23/1999EP0923711A1 Fluid flow measurement device
03/1999
03/09/1999US5880378 Critical flow venturi with variable and continuous range
03/03/1999EP0899545A1 Compound water meter
02/1999
02/11/1999WO1999006800A1 Gasmeter
02/09/1999US5869758 Method and apparatus for measuring the flow rate of a medium flow
01/1999
01/27/1999CN2305658Y Water meter chamber
01/19/1999US5861556 Flowmeter
01/19/1999US5861546 Intelligent gas flow measurement and leak detection apparatus
12/1998
12/30/1998CN1203357A Combined water-meter
12/10/1998DE19736812C1 Composite water meter
11/1998
11/17/1998US5837904 Flowmeter tubes and method of installing them
11/03/1998US5831158 Combination water meter
10/1998
10/28/1998EP0874226A1 Compound water meter
10/27/1998US5826570 Hand held device for delivering aerosolized medication to a patient
10/21/1998EP0872716A1 Compound water flow meter
09/1998
09/29/1998US5813397 Delivery of aerosol medication for inspiration
06/1998
06/18/1998DE19651202A1 Combined water meter
04/1998
04/28/1998US5743252 Method for releasing controlled amount of aerosol medication
04/21/1998US5741977 High void fraction multi-phase fluid flow meter
03/1998
03/18/1998EP0649515B1 Flowmeter
03/12/1998WO1998010250A1 Fluid flow measurement device
01/1998
01/28/1998EP0821221A2 Compound water meter
10/1997
10/02/1997DE19615857C1 Precision air flow quantity dosing device for internal combustion engine
10/01/1997EP0798008A2 Flowmeter tubes and method of installing them
09/1997
09/09/1997US5665923 Full range-high accuracy air flow sensing device
08/1997
08/12/1997US5655516 Delivery of aerosol medications for inspiration
06/1997
06/19/1997DE19546927A1 Measuring unit with sensor selectively insertable in connection tube of tube part
05/1997
05/07/1997EP0772026A2 Improved gas mass flow metering valve
04/1997
04/10/1997DE19616330C1 Combined water meter for large and small flow rates
04/03/1997DE19633416A1 Vol. flow and density measurement device for gases and liquids
03/1997
03/19/1997EP0763718A1 Flowmeter
03/19/1997EP0670034B1 Method and apparatus for measuring the flow rate of a medium flow
03/04/1997US5608647 Method for releasing controlled amount of aerosol medication
12/1996
12/31/1996US5589642 High void fraction multi-phase fluid flow meter
11/1996
11/19/1996US5576486 Electronic flowmeter system with a stopper against undesirable flows, leak detector and bypass for measuring low flows
09/1996
09/18/1996CN1131274A High void fraction multi-phase fluid flow meter
09/10/1996US5554805 Flowmeter with a variable constriction
08/1996
08/06/1996US5542410 To a patient for inspiration
07/1996
07/09/1996US5533412 Pulsed thermal flow sensor system
05/1996
05/21/1996US5517855 Combined water meter
03/1996
03/26/1996CA2082168C Delivery of aerosol medications for inspiration
03/20/1996EP0702211A2 A high void fraction multi-phase fluid flow meter
12/1995
12/14/1995WO1995033979A1 Flowmeter
11/1995
11/28/1995US5469750 Method and apparatus for sensing flow in two directions and automatic calibration thereof
10/1995
10/19/1995DE4412683A1 Compound watermeter with automatic flowrate discrimination
09/1995
09/20/1995CN1108761A Complex water meter
09/12/1995US5450336 Method for correcting the drift offset of a transducer
09/06/1995EP0670034A1 Method and apparatus for measuring the flow rate of a medium flow.
08/1995
08/30/1995EP0669520A1 Volume flow meter
08/23/1995EP0668487A1 Compound water meter
06/1995
06/08/1995WO1995015481A1 Method of and apparatus for measuring sewage water discharge of gravitational sewerage channels
06/07/1995EP0656527A1 Compound flow meter and leak detector system with a valve that is shut under abnormal flow conditions
05/1995
05/24/1995DE4403178C1 Vol. flow meter
04/1995
04/26/1995EP0649515A1 Flowmeter
04/11/1995US5404871 Delivery of aerosol medications for inspiration
04/11/1995US5404758 Flowmeter for determining flowing mediums
03/1995
03/25/1995CA2106935A1 Fluid flow control system
03/08/1995EP0642001A2 Positive displacement flowmeter
03/07/1995US5394866 Automatic aerosol medication delivery system and methods
02/1995
02/28/1995US5392768 Method and apparatus for releasing a controlled amount of aerosol medication over a selectable time interval
01/1995
01/19/1995WO1995002164A1 Pulsed thermal flow sensor system
01/11/1995EP0632882A1 Flow circuit and flow meter
01/03/1995US5377524 Self-testing capacitive pressure transducer and method
08/1994
08/23/1994US5339695 Fluidic gas flowmeter with large flow metering range
1 2 3 4 5 6 7 8 9