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Class Information
Number: 73/195
Name: Measuring and testing > Volume or rate of flow > System
Description: Meter systems employing two or more meters. These systems are usually for measuring and comparing two or more flows or for selectively metering small or large flows in meters of different capacity.

Sub-classes under this class:

Class Number Class Name Patents
73/197 Compound meter 49
73/196 Flow comparing 77

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8660703 Method and device for controlling a wastewater network Feb. 25, 2014
8602369 Water meter mounting bracket system and method Dec. 10, 2013
8489342 Methods and apparatus for fluid flow measurement Jul. 16, 2013
8305231 Gas appliance monitoring apparatus Nov. 6, 2012
8279080 Systems and methods for remote utility metering and meter monitoring Oct. 2, 2012
8100005 Permeate flow distribution measurement in a membrane filtration system Jan. 24, 2012
7962293 Apparatus and method for providing a stratification metric of a multiphase fluid flowing within a pipe Jun. 14, 2011
7962576 Quantity conversion interface for external program calls Jun. 14, 2011
7880641 Configurable smart utility meter box Feb. 1, 2011
7836760 Method and device for the assessment of fluid collection networks Nov. 23, 2010
7726185 System and method for measuring flow in a pipeline Jun. 1, 2010
7663503 Meter register having an encoder for measuring material flow and an algorithm to selectively block signal transmission Feb. 16, 2010
7624623 Instrument and method for detecting leaks in hermetically sealed packaging Dec. 1, 2009
7477997 Method for ascertaining interferants in small liquid samples in an automated clinical analyzer Jan. 13, 2009
7454985 Method and device for determining the hydraulic flow rate in a pump driven by a synchronous electric motor Nov. 25, 2008
7360413 Wireless water flow monitoring and leak detection system, and method Apr. 22, 2008
7266467 Method to calibrate hydraulic flow valves in situ Sep. 4, 2007
7253743 Techniques for identifying when to change an air filter Aug. 7, 2007
6955095 Accurate cryogenic liquid dispenser Oct. 18, 2005
6886409 System for controlling the flow of a fluid through a substrate May. 3, 2005
6832166 Method and system for analyzing the effect of inflow and infiltration on a sewer system Dec. 14, 2004
6758101 Steam to carbon ratio control in steam reforming of hydrocarbons Jul. 6, 2004
6732594 Accurate cryogenic liquid dispenser May. 11, 2004
6721674 Method and apparatus for in-situ calibration of quantity measurement of a fluid flowing in a channel Apr. 13, 2004
6701261 Method and system for analyzing the effect of inflow and infiltration on a sewer system Mar. 2, 2004
6681644 Flowmeter for measuring extremely low fuel mass flows Jan. 27, 2004
6637263 Flow divider Oct. 28, 2003
6595048 Accurate cryogenic liquid dispenser Jul. 22, 2003
6424923 Method for computing three dimensional unsteady flows by solution of the vorticity equation on a Lagrangian mesh Jul. 23, 2002
6397687 Water usage monitor and regulator Jun. 4, 2002
6377190 System for monitoring water consuming structures in an individual unit of a multi-unit building Apr. 23, 2002
6363957 End user requirement supply using segmentation Apr. 2, 2002
6234030 Multiphase metering method for multiphase flow May. 22, 2001
6205871 Vascular phantoms Mar. 27, 2001
6199434 Compact device for metering gas at variable pressure Mar. 13, 2001
6085586 Flow meter system with remote displays for each discharge Jul. 11, 2000
5986573 Method and apparatus for metering building structures Nov. 16, 1999
5937373 Method of controlling an underground fluid flow system Aug. 10, 1999
5869757 Apparatus for volume determination Feb. 9, 1999
5838258 System for monitoring the use of heat energy in water devices in an individual unit of a multi-unit building Nov. 17, 1998
5650565 Mini-dilution apparatus and method for exhaust emission testing Jul. 22, 1997
5635626 Measurement of a gas characteristic Jun. 3, 1997
5616841 Flow metering device for landfill gas extraction well Apr. 1, 1997
5616838 Metering apparatus for cryogenic liquids Apr. 1, 1997
5541576 Six channel dual display MFC monitor Jul. 30, 1996
5509305 Closely coupled, dual turbine volumetric flow meter Apr. 23, 1996
5463899 Simultaneous measurement of gas thermal conductivity and mass flow Nov. 7, 1995
5461930 Apparatus and method for measuring two-or three-phase fluid flow utilizing one or more momentum flow meters and a volumetric flow meter Oct. 31, 1995
5460039 Flow sensor system Oct. 24, 1995
5419189 Method for obtaining zero flowmeter reading for zero flow May. 30, 1995

1 2 3

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