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