US Patent No: 5,343,764

Number of patents in Portfolio can not be more than 2000

Coriolis-type mass flowmeter

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Importance

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Abstract

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A rigid central manifold block defines a coaxial inlet and outlet of the flowmeter and supports at least one continuous conduit loop substantially encircling the block and having its inlet and outlet ends closely spaced and rigidly connected to the block. Preferably, the loop includes a straight section perpendicular to the inlet and outlet ends. Dual drive means are preferably provided for oscillating the straight section back and forth about its perpendicular bisector and complementary position detectors employed at or near the opposite ends of the straight section, preferably at the same location as the drive units, provide readouts which are combined algebraically and synchronously demodulated to yield a Coriolis-related output indicative of mass flow. Preferably, a second loop, identical and parallel to the first, is supported by the same block. The block is channeled to serve as a manifold and interchangeable manifolds are disclosed for series and parallel flow through the two loops, respectively. The plane of the loop or loops can be oriented perpendicular or parallel (in line) to the process line.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
INVENSYS SYSTEMS, INC.FOXBORO, MA481

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chitty, Gordon W Norfolk, MA 8 282
DeCarlo, Joseph P Wrentham, MA 5 168
Hussain, Yousif Weston Favell, GB 51 222
Mattar, Wade M Wrentham, MA 52 522
Thompson, Duane T Franklin, MA 7 250

Cited Art Landscape

Patent Info (Count) # Cites Year
 
MICRO MOTION, INC. (8)
* RE31450 Method and structure for flow measurement 105 1982
* 4,491,025 Parallel path Coriolis mass flow rate meter 135 1982
* 4,491,009 Electronic circuit for vibrating tube densimeter 21 1983
* 4,660,421 Apparatus for mass flow rate and density measurement 44 1985
* 4,768,385 Parallel path Coriolis mass flow meter 21 1986
* 4,817,448 Auto zero circuit for flow meter 61 1986
* 4,756,198 Sensor apparatus for mass flow rate measurement system 33 1987
* 4,823,613 Density insensitive coriolis mass flow rate meter 33 1988
 
ABB KENT TAYLOR LIMITED (2)
* 4,733,569 Mass flow meter 33 1985
* 4,782,711 Method and apparatus for measuring mass flow 46 1986
 
BA BUSINESS CREDIT, INC. (2)
* 4,691,578 Coriolis-type mass flowmeter 26 1986
* 4,756,197 Coriolis-type mass flowmeter 23 1987
 
ELSAG INTERNATIONAL B.V., A CORP. OF THE NETHERLANDS (2)
* 4,622,858 Apparatus and method for continuously measuring mass flow 42 1985
* 4,763,530 Apparatus and method for continuously measuring mass flow 8 1986
 
EMERSON ELECTRIC CO. (2)
* 4,784,000 Magnetic flowmeter coil driver and method 13 1987
* 4,784,001 Magnetic flowmeter with isolation amplifier and ranging circuit therefor and method 10 1987
 
SMITH METER INC. (2)
* 4,559,833 Meter for measuring mass flow rate 23 1984
* 4,655,089 Mass flow meter and signal processing system 34 1985
 
BOPP & REUTHER GMBH, D-6800 MANNHEIM 31, (1)
* 4,793,192 Electromagnetic pulse receiver for a flow meter 14 1986
 
DANFOSS A/S (1)
* 4,680,974 Mass flow meter on the coriolis principle 35 1986
 
ENERGY, UNITED STATES DEPARTMENT OF (1)
* 4,470,294 Method and apparatus for simultaneous determination of fluid mass flow rate, mean velocity and density 21 1982
 
EXAC CORPORATION (1)
* 4,781,069 Mode selection apparatus for multiple tube coriolis type mass flow meters 19 1986
 
FISCHER & PORTER COMPANY (1)
* 4,747,312 Double-loop Coriolis type mass flowmeter 45 1987
 
HALLIBURTON COMPANY (1)
* 4,311,054 Mass flowmeter with sensor gain control 32 1980
 
INVENSYS SYSTEMS, INC. (1)
* 4,891,991 Coriolis-type mass flowmeter 60 1986
 
K-FLOW DIVSION OF KANE STEEL CO., INC., A CORP. OF NEW JERSEY (1)
* 4,716,771 Symmetrical mass flow meter 26 1986
 
S & F ASSOCIATES, A PARTNERSHIP (SEE RECORD FOR PARTNERS) (1)
* 4,422,338 Method and apparatus for mass flow measurement 97 1981
 
St Lab., Inc. (1)
* 4,381,680 Mass flow meter 14 1980
 
STAINTON, DAVID H. (1)
* 4,444,059 Oscillating tube mass flow rate meter 18 1982
 
The Babcock & Wilcox Company (1)
* 4,703,660 Apparatus and method for continuously measuring mass flow 17 1986
 
Other [Check patent profile for assignment information] (6)
* 4,658,657 Mass flow meter 16 1985
* 4,628,744 S-tube Coriolis force flow meter 28 1985
* 4,823,614 Coriolis-type mass flowmeter 107 1986
* 4,759,223 Fluid mass flow meter 8 1986
* 4,798,091 Dual S-tube Coriolis force flowmeter 17 1986
* 4,831,885 Acoustic wave supressor for Coriolis flow meter 40 1987
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
INVENSYS SYSTEMS, INC. (35)
* 5,546,814 Parallel-flow coriolis-type mass flowmeter with flow-dividing manifold 6 1994
* 5,926,096 Method and apparatus for correcting for performance degrading factors in a coriolis-type mass flowmeter 59 1996
6,178,828 Free standing Coriolis driver 5 1998
6,311,136 Digital flowmeter 100 1998
6,505,519 Correcting for two-phase flow in a digital flowmeter 77 2001
6,754,594 Digital flowmeter 14 2001
6,507,791 Digital flowmeter 46 2001
6,758,102 Correcting for two-phase flow in a digital flowmeter 37 2003
6,950,760 Startup and operational techniques for a digital flowmeter 22 2003
6,917,887 Digital flowmeter 16 2003
7,059,199 Multiphase Coriolis flowmeter 13 2004
6,981,424 Correcting for two-phase flow in a digital flowmeter 17 2004
7,065,455 Correcting frequency in flowtube measurements 5 2004
7,188,534 Multi-phase coriolis flowmeter 9 2005
7,136,761 Digital flowmeter 7 2005
7,146,280 Startup and operational techniques for a digital flowmeter 0 2005
7,124,646 Correcting for two-phase flow in a digital flowmeter 10 2005
7,207,229 Multiphase Coriolis flowmeter 6 2006
7,509,219 Correcting frequency in flowtube measurements 4 2006
7,505,854 Startup techniques for a digital flowmeter 5 2006
7,404,336 Correcting for two-phase flow in a digital flowmeter 9 2006
7,571,062 Digital flowmeter 6 2006
7,698,954 Multi-phase Coriolis flowmeter 2 2007
7,726,203 Multiphase Coriolis flowmeter 1 2007
8,000,906 Digital flowmeter 15 2007
7,784,360 Correcting for two-phase flow in a digital flowmeter 4 2008
7,904,256 Startup techniques for a digital flowmeter 4 2009
8,126,661 Wet gas measurement 0 2009
8,117,921 Multi-phase coriolis flowmeter 1 2010
8,467,986 Drive techniques for a digital flowmeter 0 2010
8,224,593 Startup techniques for a digital flowmeter 0 2011
8,887,579 Correcting for two-phase flow in a digital flowmeter 0 2012
8,661,914 Correcting for two-phase flow in a digital flowmeter 0 2012
8,483,979 Startup and operational techniques for a digital flowmeter 0 2012
8,892,370 Digital flowmeter 0 2013
 
OVAL CORPORATION (3)
* 7,739,920 Coriolis flowmeter having a fixing member with non-parallel inlet and outlet portions 0 2004
* 7,409,873 Coriolis flowmeter 1 2004
* 7,698,956 Coriolis flow meter with vibrating direction restriction means 0 2007
* Cited By Examiner