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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
8650946 Thermal flow sensor having an electromagnetic actuator for a cyclic flow modulator Feb. 18, 2014
8573051 Flow rate measurement device having an auxiliary passage arrangement that prevents liquid breaking into the detection passage Nov. 5, 2013
8549908 Thermal anemometer flow meter for the measurement of wet gas flow Oct. 8, 2013
8521449 Three dimensional air flow sensors for data center cooling Aug. 27, 2013
8499786 Mass flow controller with enhanced operating range Aug. 6, 2013
8448503 Hot-film air-mass meter having a flow separating element May. 28, 2013
8418549 Flow sensor assembly with integral bypass channel Apr. 16, 2013
8418548 Plug-in sensor having an optimized flow outlet Apr. 16, 2013
8397586 Flow sensor assembly with porous insert Mar. 19, 2013
8347706 Flow-rate measurement apparatus Jan. 8, 2013
8251091 Temperature insensitive mass flow controller Aug. 28, 2012
8234914 Device for measuring flowing media Aug. 7, 2012
8212999 Liquid droplet measurement apparatus and liquid droplet measurement method Jul. 3, 2012
8205493 Plug-in sensor having improved fluid mechanics Jun. 26, 2012
8191417 Flow rate measuring apparatus including a recess for changing air flow direction Jun. 5, 2012
8190404 Computational radiator flow distribution method May. 29, 2012
8181514 Flow rate measuring apparatus including a recess for changing air flow direction May. 22, 2012
8184271 Differentiation of flow cytometry pulses and applications May. 22, 2012
8170724 Systems and associated methods for controllably cooling computer components May. 1, 2012
8104340 Flow sensing device including a tapered flow channel Jan. 31, 2012
RE42529 Thermal flow rate measuring device Jul. 12, 2011
7971479 Fluid flow rate measurement apparatus Jul. 5, 2011
7971480 Mass flow controller having a first pair of thermal sensing elements opposing a second pair of thermal sensing elements Jul. 5, 2011
7963161 Heating resistor type air flow rate measuring device utilizing an auxiliary passage Jun. 21, 2011
7942052 Flow rate measuring apparatus including a recess for changing air flow direction May. 17, 2011
7938577 Fluid temperature control device May. 10, 2011
7926343 Flow rate measuring device Apr. 19, 2011
7905139 Mass flow controller with improved dynamic Mar. 15, 2011
7891240 Thermal type flow measuring device Feb. 22, 2011
7707880 Monitoring method and system for determining rack airflow rate and rack power consumption May. 4, 2010
7661303 Flow measuring device having heating resistor in inclined position with respect to the flow direction Feb. 16, 2010
7661877 Thermal flow detecting apparatus and method for detecting flow using the same Feb. 16, 2010
7651263 Method and apparatus for measuring the temperature of a gas in a mass flow controller Jan. 26, 2010
7647844 Device and method of detecting flow rate/liquid kind, and device and method of detecting liquid kind Jan. 19, 2010
7614295 Flow sensor Nov. 10, 2009
7574908 Flow rate measuring device Aug. 18, 2009
7559237 Air flow measuring device provided with a vent in air passage Jul. 14, 2009
7552015 Apparatus and method for displaying mass flow controller pressure Jun. 23, 2009
7530267 Flow rate measuring apparatus May. 12, 2009
7523659 Flow measurement apparatus Apr. 28, 2009
7467546 Equipment for measuring gas flow rate Dec. 23, 2008
7437925 Intake system having a flow detecting device including a pressure receiving surface at the outflow passage of the bypass Oct. 21, 2008
7401509 Device for determining air mass in a line and including a separation outlet having a wind shield structure Jul. 22, 2008
7383725 Flow detecting device having heating element Jun. 10, 2008
7377161 Air flow measuring device provided with a vent in air passage May. 27, 2008
7377185 Device and method of detecting flow rate/liquid kind, and device and method of detecting liquid kind May. 27, 2008
7360414 Device for determining at least one parameter of a medium flowing in a conduit and having a separation opening in the bypass passage Apr. 22, 2008
7363182 System and method for mass flow detection device calibration Apr. 22, 2008
7313954 Apparatus for measuring flow characteristics Jan. 1, 2008
7305877 Device for determining at least one parameter of a medium flowing in a line having diversion surface Dec. 11, 2007

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