Coriolis-type mass flowmeter

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5343764
SERIAL NO

07879156

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ATTORNEY / AGENT: (SPONSORED)

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, MA532

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chitty, Gordon W Norfolk, MA 8 322
DeCarlo, Joseph P Wrentham, MA 5 205
Hussain, Yousif Surrey, GB 30 290
Mattar, Wade M Wrentham, MA 32 662
Thompson, Duane T Franklin, MA 7 312

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (6)
* 4658657 Mass flow meter 17 1985
* 4628744 S-tube Coriolis force flow meter 28 1985
* 4823614 Coriolis-type mass flowmeter 121 1986
* 4759223 Fluid mass flow meter 8 1986
* 4798091 Dual S-tube Coriolis force flowmeter 17 1986
* 4831885 Acoustic wave supressor for Coriolis flow meter 43 1987
 
BOPP & REUTHER GMBH, D-6800 MANNHEIM 31, (1)
* 4793192 Electromagnetic pulse receiver for a flow meter 14 1986
 
ABB Kent-Taylor Limited (2)
* 4733569 Mass flow meter 43 1985
* 4782711 Method and apparatus for measuring mass flow 58 1986
 
FISCHER & PORTER COMPANY (1)
* 4747312 Double-loop Coriolis type mass flowmeter 45 1987
 
THE BABCOCK & WILCOX COMPANY (1)
* 4703660 Apparatus and method for continuously measuring mass flow 17 1986
 
EMERSON ELECTRIC CO. (2)
* 4784000 Magnetic flowmeter coil driver and method 13 1987
* 4784001 Magnetic flowmeter with isolation amplifier and ranging circuit therefor and method 10 1987
 
S & F ASSOCIATES, A PARTNERSHIP (SEE RECORD FOR PARTNERS) (1)
* 4422338 Method and apparatus for mass flow measurement 114 1981
 
St Lab., Inc. (1)
* 4381680 Mass flow meter 15 1980
 
K-FLOW DIVSION OF KANE STEEL CO., INC., A CORP. OF NEW JERSEY (1)
* 4716771 Symmetrical mass flow meter 27 1986
 
SMITH METER INC. (2)
* 4559833 Meter for measuring mass flow rate 24 1984
* 4655089 Mass flow meter and signal processing system 46 1985
 
HALLIBURTON COMPANY (1)
* 4311054 Mass flowmeter with sensor gain control 32 1980
 
INVENSYS SYSTEMS, INC. (1)
* 4891991 Coriolis-type mass flowmeter 74 1986
 
BA BUSINESS CREDIT, INC. (2)
* 4691578 Coriolis-type mass flowmeter 26 1986
* 4756197 Coriolis-type mass flowmeter 23 1987
 
The United States of America as represented by the United States Department of Energy (1)
* 4470294 Method and apparatus for simultaneous determination of fluid mass flow rate, mean velocity and density 31 1982
 
ELSAG INTERNATIONAL B.V., A CORP. OF THE NETHERLANDS (2)
* 4622858 Apparatus and method for continuously measuring mass flow 42 1985
* 4763530 Apparatus and method for continuously measuring mass flow 9 1986
 
DANFOSS A/S (1)
* 4680974 Mass flow meter on the coriolis principle 35 1986
 
EXAC CORPORATION (1)
* 4781069 Mode selection apparatus for multiple tube coriolis type mass flow meters 20 1986
 
STAINTON, DAVID H. (1)
* 4444059 Oscillating tube mass flow rate meter 18 1982
 
MICRO MOTION, INC. (8)
* RE31450 Method and structure for flow measurement 121 1982
* 4491025 Parallel path Coriolis mass flow rate meter 151 1982
* 4491009 Electronic circuit for vibrating tube densimeter 22 1983
* 4660421 Apparatus for mass flow rate and density measurement 45 1985
* 4768385 Parallel path Coriolis mass flow meter 23 1986
* 4817448 Auto zero circuit for flow meter 74 1986
* 4756198 Sensor apparatus for mass flow rate measurement system 33 1987
* 4823613 Density insensitive coriolis mass flow rate meter 34 1988
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
OVAL CORPORATION (5)
* 7739920 Coriolis flowmeter having a fixing member with non-parallel inlet and outlet portions 0 2004
* 7409873 Coriolis flowmeter 1 2004
* 2008/0047,360 Coriolis Flowmeter 1 2004
* 2007/0163,363 Coriolis flowmeter 2 2004
* 7698956 Coriolis flow meter with vibrating direction restriction means 0 2007
 
INVENSYS SYSTEMS, INC. (59)
* 5546814 Parallel-flow coriolis-type mass flowmeter with flow-dividing manifold 7 1994
* 5926096 Method and apparatus for correcting for performance degrading factors in a coriolis-type mass flowmeter 72 1996
6178828 Free standing Coriolis driver 8 1998
6311136 Digital flowmeter 117 1998
6505519 Correcting for two-phase flow in a digital flowmeter 91 2001
6754594 Digital flowmeter 25 2001
6507791 Digital flowmeter 56 2001
6758102 Correcting for two-phase flow in a digital flowmeter 47 2003
* 2003/0154,804 Correcting for two-phase flow in a digital flowmeter 1 2003
6950760 Startup and operational techniques for a digital flowmeter 34 2003
* 2003/0212,509 Startup and operational techniques for a digital flowmeter 3 2003
6917887 Digital flowmeter 26 2003
* 2004/0031,328 Digital flowmeter 3 2003
7059199 Multiphase Coriolis flowmeter 14 2004
* 2005/0081,643 Multiphase coriolis flowmeter 7 2004
6981424 Correcting for two-phase flow in a digital flowmeter 29 2004
* 2004/0206,189 Correcting for two-phase flow in a digital flowmeter 0 2004
7065455 Correcting frequency in flowtube measurements 8 2004
7188534 Multi-phase coriolis flowmeter 11 2005
* 2005/0193,832 Multi-phase Coriolis flowmeter 12 2005
7136761 Digital flowmeter 17 2005
7146280 Startup and operational techniques for a digital flowmeter 0 2005
7124646 Correcting for two-phase flow in a digital flowmeter 23 2005
* 2005/0284,237 Correcting for two-phase flow in a digital flowmeter 9 2005
7207229 Multiphase Coriolis flowmeter 6 2006
7509219 Correcting frequency in flowtube measurements 15 2006
* 2006/0243,062 Correcting Frequency in Flowtube Measurements 2 2006
7505854 Startup techniques for a digital flowmeter 16 2006
* 2007/0027,639 Startup Techniques for a Digital Flowmeter 2 2006
7404336 Correcting for two-phase flow in a digital flowmeter 20 2006
7571062 Digital flowmeter 16 2006
* 2007/0124,090 DIGITAL FLOWMETER 7 2006
7698954 Multi-phase Coriolis flowmeter 3 2007
7726203 Multiphase Coriolis flowmeter 1 2007
8000906 Digital flowmeter 25 2007
* 2010/0107,778 DIGITAL FLOWMETER 1 2007
7784360 Correcting for two-phase flow in a digital flowmeter 15 2008
* 2009/0019,947 Correcting for Two-Phase Flow in a Digital Flowmeter 3 2008
7904256 Startup techniques for a digital flowmeter 14 2009
8126661 Wet gas measurement 0 2009
8117921 Multi-phase coriolis flowmeter 2 2010
* 2011/0016,988 MULTI-PHASE CORIOLIS FLOWMETER 3 2010
8467986 Drive techniques for a digital flowmeter 0 2010
* 2011/0035,166 DRIVE TECHNIQUES FOR A DIGITAL FLOWMETER 3 2010
8224593 Startup techniques for a digital flowmeter 0 2011
9021892 Correcting for two-phase flow in a digital flowmeter 0 2012
8887579 Correcting for two-phase flow in a digital flowmeter 0 2012
8661914 Correcting for two-phase flow in a digital flowmeter 0 2012
8483979 Startup and operational techniques for a digital flowmeter 0 2012
9046400 Digital flowmeter 1 2013
8892370 Digital flowmeter 0 2013
9014997 Drive techniques for a digital flowmeter 0 2013
9046401 Correcting for two-phase flow in a digital flowmeter 1 2013
9279710 Digital flowmeter 0 2014
9200936 Digital flowmeter 0 2014
9091580 Digital flowmeter 0 2014
9080909 Digital flowmeter 0 2014
8972207 Digital flowmeter 0 2014
8965715 Digital flowmeter 0 2014
* Cited By Examiner