Patents
Patents for G01F 7 - Volume-flow measuring devices with two or more measuring ranges; Compound meters (817)
08/1994
08/23/1994US5339687 Flowmeter
08/17/1994EP0610174A1 Improved flow meter
08/09/1994US5335553 Fluidic gas meter provided with a printed wiring board
08/04/1994WO1994017369A1 Method and apparatus for sensing flow in two directions and automatic calibration thereof
07/1994
07/27/1994EP0460044B1 Flowmeter
07/19/1994CA1330726C Fluid metering system
05/1994
05/11/1994WO1994010540A1 Method and apparatus for measuring the flow rate of a medium flow
03/1994
03/31/1994DE4232774A1 Compound water meter with Woltmann counter - has main and small flow meters and automatic changeover valve operated by differential and spring press.
03/29/1994US5298886 Fluidic flowmeter equipped with a micro flow sensor
03/29/1994US5297427 Wide-range laminar flowmeter
03/17/1994WO1994005977A1 Wide-range laminar flowmeter
03/09/1994EP0585920A2 Flow meter for the determination of flowing media
03/08/1994US5291780 Flow meters
12/1993
12/21/1993CA1325477C Fluid meter
12/14/1993US5269334 Fluid flow control system
11/1993
11/02/1993US5257537 Self actuating throttle valve
09/1993
09/16/1993WO1993018372A1 Flow circuit and flow meter
08/1993
08/04/1993EP0529053A4 Delivery of aerosol medications for inspiration
07/1993
07/27/1993US5230245 Flow meter and measuring method therefor
06/1993
06/24/1993WO1993012406A1 Flowmeter
06/24/1993CA2125976A1 Flowmeter
06/09/1993EP0545752A1 Method and device for measuring the flow rate in conduits transporting a thermal regulation fluid
05/1993
05/25/1993CA1318132C Method and apparatus for applying multicomponent materials
05/19/1993CN1020818C Signal regulater
03/1993
03/20/1993CA2076595A1 Flow range extending valve
03/03/1993EP0529053A1 Delivery of aerosol medications for inspiration
10/1992
10/29/1992WO1992015353A3 Delivery of aerosol medications for inspiration
10/06/1992US5153823 Device to measure and/or control flow-through and/or quantity of heat
09/1992
09/22/1992US5148829 Multi-orifice plate and fitting with positioner and differential selector
09/06/1992WO1992015353A2 Delivery of aerosol medications for inspiration
09/02/1992EP0501242A1 Method for determining the flow of exhaust gases
08/1992
08/27/1992DE4104451A1 Rain overflow arrangement with measurement system for overflow reservoir - has several measurement devices with different ranges connected in series and=or in parallel
06/1992
06/30/1992US5125753 Device to measure flow-through and/or quantity of heat
06/02/1992US5117856 Flow range extending valve
02/1992
02/26/1992EP0471865A1 Positive displacement flowmeter
02/18/1992US5088322 Extended range flow meter
02/04/1992US5085076 Integrated water strainer, meter, and crossover check valve
01/1992
01/08/1992EP0465182A2 Flow meter and method of fluid flow measurement
09/1991
09/05/1991WO1991013321A1 Improved flow meter
06/1991
06/04/1991US5020373 Composite flow meter
04/1991
04/02/1991US5004159 Method and apparatus for applying single of multicomponent materials
04/02/1991US5003810 For use in domestic gas metering
03/1991
03/07/1991DE3929381A1 Combination water meter for large and small flows - has changeover valve for Woltmann meter and auxiliary meter operated according to flow rate
01/1991
01/31/1991DE3924147A1 Combination water meter with main, by=pass channel meters - has by=pass arranged to eliminate separation of by=pass and meter housing flanges
01/22/1991US4986133 Flow meter
10/1990
10/24/1990EP0393938A1 Flowmeters
10/23/1990US4964297 Viscosimeter
10/19/1990WO1990013007A1 Flow meters
10/19/1990CA2053273A1 Flow meters
10/17/1990EP0392272A1 Measuring and/or controlling device for fluid flow and/or quantities of heat
10/17/1990EP0392271A1 Measuring device for fluid flow and/or quantities of heat
09/1990
09/11/1990US4956795 Signal conditioners
08/1990
08/19/1990WO1990009567A1 Flowmeter
08/07/1990US4945754 Test water meter with digital display
07/1990
07/03/1990US4938073 Expanded range magnetic flow meter
07/03/1990US4938053 Fluid metering system
06/1990
06/20/1990EP0373929A1 Composite flow meter
06/13/1990DE3922609A1 Float body throughput meter with replaceable float - has smallest effective cross-section in centre and narrowing halves for industrial and laboratory use
03/1990
03/06/1990US4905509 Hot wire air flow meter arrangement for monitoring intake air flow rate in internal combustion engine
02/1990
02/13/1990US4899582 Air system analyzer
12/1989
12/05/1989US4884441 Variable capacity flowmeter
10/1989
10/17/1989US4873872 Float for fluid measurements
08/1989
08/30/1989EP0330233A1 Hot wire air flow meter arrangement for monitoring intake air flow rate in internal combustion engine
08/16/1989CN1034818A Signal regulater
08/02/1989EP0326510A2 Method and apparatus for applying single or multicomponent materials
06/1989
06/08/1989DE3740531A1 Compound water meter with a partial-flow meter as main meter
05/1989
05/02/1989US4825707 Fluid flow indicator including a hall effect transducer
03/1989
03/15/1989CN2034268U Metering mechanism with two-phase current flow
03/08/1989EP0306193A1 Fluid meter
03/01/1989EP0305134A1 Fluid metering system
02/1989
02/09/1989DE3725581A1 Vorrichtung zum messen des flottenverbrauchs einer applikationseinheit Apparatus for measuring the fleet consumption of an application unit
01/1989
01/31/1989US4800754 Wide-range, adjustable flowmeter
12/1988
12/13/1988US4790194 Flow measurement device
12/13/1988US4790181 Thermal mass flow meter and method of making same
09/1988
09/01/1988DE3732703A1 Compound water meter
03/1988
03/29/1988US4733559 Thermal fluid flow sensing method and apparatus for sensing flow over a wide range of flow rates
03/17/1988DE3630885A1 Inductive flowmeter
02/1988
02/23/1988US4726237 Fluid metering apparatus and method
12/1987
12/22/1987CA1230502A1 Method and apparatus for accurately measuring volume of gas flowing as a result of differential pressure
05/1987
05/12/1987US4664090 Air flow measuring system for internal combustion engines
04/1987
04/29/1987EP0219967A1 Air flow measuring apparatus for internal combustion engines
03/1987
03/31/1987US4653321 Method of automatically measuring fluid flow rates
03/26/1987DE3533129A1 Switch-over valve for a compound water counter
03/03/1987US4646940 Method and apparatus for accurately measuring volume of gas flowing as a result of differential pressure
01/1987
01/06/1987US4633578 Miniature thermal fluid flow sensors and batch methods of making same
09/1986
09/09/1986US4610162 Fluidic flowmeter
09/09/1986CA1211215A1 Pulverized coal relative distribution meter
01/1986
01/21/1986US4565098 Hybrid sensing system for vortex flowmeter
12/1985
12/20/1985CN85200318U Float flowmeter with automatic transfer means
10/1985
10/22/1985US4548076 Air flow volume measuring apparatus
06/1985
06/25/1985US4524616 Adjustable laminar flow bypass
06/12/1985EP0144193A2 Pulverized coal relative flow measurement
04/1985
04/23/1985US4512200 Pulverized coal relative distribution meter
12/1984
12/11/1984US4487217 Reversing valve for combination meter
10/1984
10/02/1984CA1175256A1 Compound liquid flow meter
07/1984
07/24/1984US4461173 For measuring the mass flow rate of a gas
07/17/1984US4459860 Flow sensor with extended low flow range
03/1984
03/20/1984US4437344 Compound liquid flow meter with fast crossover characteristic
02/1984
02/07/1984US4429571 Compound liquid flow meter
07/1983
07/27/1983EP0084225A1 Flow sensor with extended low flow range
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