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Class Information
Number: 73/861.12
Name: Measuring and testing > Volume or rate of flow > By measuring electrical or magnetic properties > Electromagnetic induction (e.g., faraday type) > With detecting electrodes
Description: Subject matter wherein electrodes are placed in contact with the fluid or are capacitively coupled therewith to detect a potential gradient produced in the fluid along a path through the fluid extending transverse to both the magnetic field and a component of the flow direction.

Sub-classes under this class:

Class Number Class Name Patents
73/861.14 For dielectric fluids 18
73/861.16 Including electrically interconnected or synchronized input and output circuit 63
73/861.13 Including permanent magnet or d.c. field 39
73/861.15 Plural pairs of detecting electrodes 70

Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8561478 Rotating fluid measurement device and method Oct. 22, 2013
8528417 Electromagnetic flowmeter having a measuring tube with an electrically-insulating internal coating positioned in a recess Sep. 10, 2013
8464595 Method for manufacturing a plastic, especially a polyurethane, as well as method for manufacturing, with such plastic, a liner for a measuring tube of an in-line measuring device Jun. 18, 2013
8453516 Electromagnetic flowmeter with automatic span correction Jun. 4, 2013
8448524 Magnetic inductive flow meter May. 28, 2013
8438934 Wriggler for gas meter endpoint May. 14, 2013
8434371 Electromagnetic fluid velocity sensor with adjustable electrodes May. 7, 2013
8408070 Electromagnetic flowmeter and method incorporating the same Apr. 2, 2013
8381598 Method of measuring the flow rate of a liquid flowing in a fluidic channel and implementation device Feb. 26, 2013
8375806 Electrode shaft for a magneto-inductive flow measuring device having a plurality of frustoconical sealing lips Feb. 19, 2013
8374805 Coriolis mass flowmeter Feb. 12, 2013
8365612 Electromagnetic flowmeter having a sealing member formed of two different materials Feb. 5, 2013
8349038 Self optimizing odorant injection system Jan. 8, 2013
8322196 Vibrating wire viscometers Dec. 4, 2012
8322229 Measurement apparatus including an electrode and having an anchoring portion Dec. 4, 2012
8312767 Apparatus and method for fluid flow measurement with sensor shielding Nov. 20, 2012
8286502 Electromagnet flowmeter having a measuring tube with a varying cross section Oct. 16, 2012
8286503 Electromagnetic flowmeter having a measuring tube with varying cross section and wall thickness Oct. 16, 2012
8250931 Methods and compositions for inhibiting corrosion in non-aqueous, non-conductive liquids Aug. 28, 2012
8245580 Compliant coil form Aug. 21, 2012
8171802 Method for measuring the volume flow of electrically conductive liquids through a vessel May. 8, 2012
8136411 Transducer having a robust electrical connection to a piezoelectric crystal Mar. 20, 2012
8136410 Sensor assembly for a fluid flowmeter Mar. 20, 2012
8136412 Electromagnetic flowmeter Mar. 20, 2012
8127622 Electromagnetic flowmeter having a detachable measuring tune from the body Mar. 6, 2012
8122775 Wriggler for gas meter endpoint Feb. 28, 2012
8120370 Capacitive electromagnetic flowmeter Feb. 21, 2012
8074525 Magnetic-inductive flowmeter Dec. 13, 2011
8068998 Electromagnetic flowmeter Nov. 29, 2011
8051722 Apparatus for measuring volume- or mass-flow of a medium in a pipeline Nov. 8, 2011
8047080 Electromagnetic flowmeter and zero point measurement method thereof Nov. 1, 2011
8042410 Magneto-inductive flow measuring device Oct. 25, 2011
8046194 Method for predictive maintenance and/or method for determining electrical conductivity in a magneto-inductive flow-measuring device Oct. 25, 2011
8006569 Magnetic flow meter Aug. 30, 2011
7992451 Magnetoinductive flow meter having an electromagnet unit which includes combined magnetic flux-concentrating means Aug. 9, 2011
7971493 Method for operation of a flow measurement device, and a flow measurement device itself Jul. 5, 2011
7963173 Magnetic flowmeter for measuring flow Jun. 21, 2011
7950293 Method for measuring flow rates in liquid melts May. 31, 2011
7950292 Capacitive electromagnetic flowmeter May. 31, 2011
7946184 Electromagnetic flowmeter having temperature measurement value for correcting electrical conductivity value May. 24, 2011
7942067 Method for measuring flow rate from electromagnetic pump May. 17, 2011
7938019 Sealed electrode assembly for fluid measurements May. 10, 2011
7938020 High pressure magnetic flowmeter with stress resistant electrode assembly May. 10, 2011
7930816 Methods for manufacturing flow meter insert Apr. 26, 2011
7921733 Magnetic flowmeter with coil ground path detection Apr. 12, 2011
7921734 System to detect poor process ground connections Apr. 12, 2011
7921736 Magneto-inductive flow measuring device Apr. 12, 2011
7921735 In-line measuring device with measuring tube Apr. 12, 2011
7908932 Magneto-inductive measuring transducer Mar. 22, 2011
7882749 Method and apparatus for ascertaining volume- or mass-flow Feb. 8, 2011

1 2 3 4 5 6 7 8

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