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Class Information
Number: 73/861.02
Name: Measuring and testing > Volume or rate of flow > With indirect temperature or density compensation > Electrical
Description: Subject matter wherein the transducer outputs are combined electrically.










Sub-classes under this class:

Class Number Class Name Patents
73/861.03 Digital 85


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8640552 MEMS airflow sensor die incorporating additional circuitry on the die Feb. 4, 2014
7725270 Industrial flow meter having an accessible digital interface May. 25, 2010
7698953 Device for measuring the mechanical load exerted by a fluid using an electromechanical transducer Apr. 20, 2010
7530962 Method for detecting the disconnection of an extracorporeal device using a patient's endogenous electrical voltages May. 12, 2009
7493820 Gas pump filter optimization and alarm system with GPS and web enabled monitoring Feb. 24, 2009
7380468 Device for integrating electrodes characterizing the flow of a multiphase fluid in a tubing Jun. 3, 2008
7366621 Program product to measure density, specific gravity, and flow rate of fluids Apr. 29, 2008
7360445 Flow sensor Apr. 22, 2008
RE39724 Respiratory humidification system Jul. 17, 2007
7000466 Oil flow sensing Feb. 21, 2006
6915703 Capacitance meter Jul. 12, 2005
6865495 Flow metering Mar. 8, 2005
6789420 Oil flow sensing Sep. 14, 2004
6732589 Pressure sensor, a method for manufacturing a pressure sensor and a combustion engine having a pressure sensor May. 11, 2004
6556142 System and method to communicate flow information between a service distribution line and a destination point Apr. 29, 2003
6453753 Volume or mass flowmeter Sep. 24, 2002
6377171 On-line filter monitoring system Apr. 23, 2002
6272933 Respiratory humidification system Aug. 14, 2001
6148677 Gas flow area measurement Nov. 21, 2000
6035721 Process for compensating for the incorrect operation of measuring devices caused by external influences Mar. 14, 2000
6029527 Fluid flow rate measuring and controlling device and method Feb. 29, 2000
5932812 Method and devices use in flow measurement Aug. 3, 1999
5922969 Method and apparatus for measuring the volume of flowing liquids Jul. 13, 1999
5881722 Portable drag compressor powered mechanical ventilator Mar. 16, 1999
5875765 Fuel vapor source Mar. 2, 1999
5835884 Method of determining a characteristic of a fluid Nov. 10, 1998
5694926 Portable drag compressor powered mechanical ventilator Dec. 9, 1997
5691914 Fluid flow measurement correcting system, and methods of constructing and utilizing same Nov. 25, 1997
5687100 Vibrating tube densimeter Nov. 11, 1997
5684245 Apparatus for mass flow measurement of a gas Nov. 4, 1997
5597020 Method and apparatus for dispensing natural gas with pressure sensor calibration Jan. 28, 1997
5557050 System for metering gas supplied under high pressure Sep. 17, 1996
5551282 Method and apparatus for measuring volume correction using molar quantities Sep. 3, 1996
5493915 Fluid dynamic torsional vortex sensor Feb. 27, 1996
5469749 Multiple-function fluid measuring and transmitting apparatus Nov. 28, 1995
5463903 Torque flowmeter Nov. 7, 1995
5450760 Turbine flowmeter with capacitive transducer Sep. 19, 1995
5415029 Air flow detector for engine control unit May. 16, 1995
5357809 Volumetric flow corrector having a densitometer Oct. 25, 1994
5343758 Method and apparatus for measuring gas flow Sep. 6, 1994
5325066 Density compensated pipeline monitor Jun. 28, 1994
5323657 Volumetric flow corrector and method Jun. 28, 1994
5295397 Slotted orifice flowmeter Mar. 22, 1994
5237523 Flowmeter fluid composition and temperature correction Aug. 17, 1993
5152174 Mass flow rate sensor and method Oct. 6, 1992
5152181 Mass-volume vortex flowmeter Oct. 6, 1992
5135684 Multiphase process mixing and measuring system Aug. 4, 1992
5060522 Mass-volume vortex flowmeter Oct. 29, 1991
5048323 Fluid metering Sep. 17, 1991
5044209 Reaction force flowmeter Sep. 3, 1991

1 2 3










 
 
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