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Class Information
Number: 73/202.5
Name: Measuring and testing > Volume or rate of flow > Proportional > Thermal sensing of flow
Description: Subject matter in which the rate of flow of a fluid is determined in a separated flow path by a sensed thermal effect caused by such flow.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
5062442 Apparatus for monitoring a fluid conduit system for leakage points Nov. 5, 1991
4982602 Air metering device Jan. 8, 1991
4949578 Flow metering of high temperature gases Aug. 21, 1990
4942763 Flow sensor assembly Jul. 24, 1990
4920808 Device and method for measuring the flow velocity of a free flow in three dimensions May. 1, 1990
4916948 Thermal flow sensor Apr. 17, 1990
4914947 Sampling probe flow sensor Apr. 10, 1990
4911008 Hot film anemometer Mar. 27, 1990
4879898 Apparatus for shielding and protecting an air flow rate meter disposed in the intake tube of an internal combustion engine from air column fluctuations Nov. 14, 1989
4805452 Device for the thermal measurement of the mass flow gases and liquids Feb. 21, 1989
4790182 Hot wire air flow meter Dec. 13, 1988
4764758 Incipient fire detector II Aug. 16, 1988
4723443 Intake air flow sensor Feb. 9, 1988
4672997 Modular, self-diagnostic mass-flow controller and system Jun. 16, 1987
4648270 Mass flowmeter Mar. 10, 1987
4571996 Air flow sensor Feb. 25, 1986
4562731 Air flow meter Jan. 7, 1986
4561302 Air flow rate meter Dec. 31, 1985
4548075 Fast responsive flowmeter transducer Oct. 22, 1985
4519246 Improved flow meter May. 28, 1985
4517837 Air flow rate measuring apparatus May. 21, 1985
4515014 Apparatus for measuring the mass of a flowing medium May. 7, 1985
4495802 Air flow meter assembly Jan. 29, 1985
4487062 Mass flowmeter Dec. 11, 1984
4476720 Unidirectional fluidflow sensor system Oct. 16, 1984
4475387 High temperature mass flowmeter Oct. 9, 1984
4468957 Apparatus for measuring the mass of a flowing medium Sep. 4, 1984
4463601 Method and apparatus for measuring mass airflow Aug. 7, 1984
4461173 Multirange flowmeter Jul. 24, 1984
4457169 Apparatus for measuring the mass of a flowing medium Jul. 3, 1984
4449401 Hot film/swirl fluid flowmeter May. 22, 1984
RE31570 Fluid flowmeter May. 1, 1984
4428231 Viscous link drive for fluid flowmeter Jan. 31, 1984
4420972 Air intake measuring apparatus for internal combustion engine Dec. 20, 1983
4418568 Hot film fluid flowmeter with auxiliary flow sensing Dec. 6, 1983
4403506 Apparatus for the measurement of the mass of a flowing medium Sep. 13, 1983
4395907 Air flow rate measuring device Aug. 2, 1983
4381668 Gas flow measuring apparatus May. 3, 1983
4215565 Method and apparatus for testing a fluid Aug. 5, 1980
4056975 Mass flow sensor system Nov. 8, 1977
4041757 Fluid flowmeter Aug. 16, 1977
4016759 Fluid flowmeter Apr. 12, 1977

1 2 3 4 5










 
 
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