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Class Information
Number: 73/861.27
Name: Measuring and testing > Volume or rate of flow > By measuring vibrations or acoustic energy > Transit time of acoustic waves
Description: Subject matter responsive to the transit time of acoustic waves transmitted through the fluid along a path extending between upstream and downstream locations.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7617739 |
Non-invasive ultrasonic system to determine internal pressure in flexible tubing |
Nov. 17, 2009 |
| 7617738 |
Method and apparatus for measuring flow rate of fluid |
Nov. 17, 2009 |
| 7614309 |
Cup-shaped ultrasonic transducer for a flowmeter |
Nov. 10, 2009 |
| 7614310 |
Ultrasound flow sensor with a modulo-2Pi for a remaining part tracing |
Nov. 10, 2009 |
| 7607359 |
Ultrasonic flow rate meter having a pressure sensor |
Oct. 27, 2009 |
| 7581453 |
Ultrasonic flow meter system |
Sep. 1, 2009 |
| 7571656 |
Method for ultrasonic measurement of the flow of liquid and/or gaseous media and an apparatus for implementing thereof |
Aug. 11, 2009 |
| 7546776 |
Leak detector for detecting leak of liquid injected into blood vessel using pulse signal |
Jun. 16, 2009 |
| 7523677 |
Apparatus for ascertaining and/or monitoring volume-or mass-flow of a medium |
Apr. 28, 2009 |
| 7520180 |
Method and apparatus for the ultrasonic measurement of the flow rate of flowable media |
Apr. 21, 2009 |
| 7509878 |
Ultrasonic cavitating apparatus and ultrasonic doppler flow measurement system |
Mar. 31, 2009 |
| 7503225 |
Ultrasonic flow sensor having a transducer array and reflective surface |
Mar. 17, 2009 |
| 7481114 |
Noninvasive measurement of fluid characteristics using reversibly deformed conduit |
Jan. 27, 2009 |
| 7469599 |
Flowmeter mounted on a containment |
Dec. 30, 2008 |
| 7437948 |
Ultrasonic flowmeter and ultrasonic flow rate measurement method |
Oct. 21, 2008 |
| 7412902 |
Device for determination and/or monitoring of the volumetric and/or mass flow of a medium and having coupling element including two element portions |
Aug. 19, 2008 |
| 7383741 |
Flow rate-measuring apparatus |
Jun. 10, 2008 |
| 7380469 |
Ultrasonic flow rate measuring device |
Jun. 3, 2008 |
| 7373840 |
Ultrasonic flowmeter having a transmitting body fixed on the outer peripheral surface of the pipe |
May. 20, 2008 |
| 7360448 |
Ultrasonic flow sensor having reflecting interface |
Apr. 22, 2008 |
| 7360449 |
Ultrasonic fluid measurement instrument having a plurality of split channels formed by partition boards |
Apr. 22, 2008 |
| 7363125 |
Tracking system and autonomous mobile unit |
Apr. 22, 2008 |
| 7363174 |
Apparatus and method for measuring a fluid flow rate profile using acoustic doppler effect |
Apr. 22, 2008 |
| 7341568 |
Method and device for determining blood volume during an extracorporeal blood treatment |
Mar. 11, 2008 |
| 7305309 |
Transmission measuring system with high time resolution |
Dec. 4, 2007 |
| 7299705 |
Apparatus and method for augmenting a Coriolis meter |
Nov. 27, 2007 |
| 7289914 |
Ultrasonic flowmeter and ultrasonic flowmetering method |
Oct. 30, 2007 |
| 7254494 |
Ultrasonic signal processing method and applications thereof |
Aug. 7, 2007 |
| 7243555 |
Transmitting and receiving circuitry for an ultrasonic flowmeter, and method for operating such transmitting and receiving circuitry |
Jul. 17, 2007 |
| 7237441 |
Ultrasonic type fluid measurement device |
Jul. 3, 2007 |
| 7213468 |
Ultrasonic apparatus and method for measuring the concentration and flow rate of gas |
May. 8, 2007 |
| 7201065 |
Acoustic flow sensor |
Apr. 10, 2007 |
| 7191666 |
Check valve module for flow meters |
Mar. 20, 2007 |
| 7185547 |
Extreme temperature clamp-on ultrasonic flowmeter transducer |
Mar. 6, 2007 |
| 7159472 |
Apparatus for determining fluid flow |
Jan. 9, 2007 |
| 7152490 |
Methods for determining transducer delay time and transducer separation in ultrasonic flow meters |
Dec. 26, 2006 |
| 7093502 |
Ultrasonic gas flowmeter as well as device to measure exhaust flows of internal combustion engines and method to determine flow of gases |
Aug. 22, 2006 |
| 7096135 |
Method and system for calculating the transit time of an ultrasonic pulse |
Aug. 22, 2006 |
| 7082841 |
Ultrasonic flowmeter |
Aug. 1, 2006 |
| 7075653 |
Method and apparatus for laser-based remote methane leak detection |
Jul. 11, 2006 |
| 7073395 |
Ultrasonic flowmeter and ultrasonic flow rate measuring method |
Jul. 11, 2006 |
| 7058523 |
Electricity meter having gas consumption correction processing |
Jun. 6, 2006 |
| 7044000 |
Ultrasonic flow sensor using quasi-helical beam |
May. 16, 2006 |
| 7027936 |
Methods for measuring flow by means of an ultra sonic flow meter |
Apr. 11, 2006 |
| 7024944 |
Ultrasonic flow meter |
Apr. 11, 2006 |
| 6978683 |
Ultrasonic flow meter |
Dec. 27, 2005 |
| 6973842 |
Flow probe pipe size detector |
Dec. 13, 2005 |
| 6950768 |
Self-tuning ultrasonic meter |
Sep. 27, 2005 |
| 6947851 |
Transceiver circuit for an ultrasonic flowmeter |
Sep. 20, 2005 |
| 6941821 |
Ultrasonic flowmeter including stable flow rate calculation means based on instantaneous flow rate |
Sep. 13, 2005 |
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