Flow meter

Measuring and testing – Volume or rate of flow – By measuring electrical or magnetic properties

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07665368

ABSTRACT:
An electromagnetic flow meter for measuring flow rate of a fluid passing therethrough includes a conduit defining a fluid inlet, a fluid outlet and a measuring section positioned between the inlet and the outlet. The flow meter also includes a single coil for generating a magnetic field across the measuring section and electrodes for detecting induced electrical potential due to the fluid passage. The flow meter also includes means for conditioning the flow through the measuring section. The combination of the single coil and the flow conditioning means provides a flow meter with a desired level of accuracy. The single coil and the electrodes may be arranged so that the integral of a weight function, which defines the sensitivity of the flow meter to fluid velocity through different parts of the measuring section, over the first half of a measuring section closest to the coil is between 0.4 and 1.3 times the integral of the weight function over the other half of the measuring section.

REFERENCES:
patent: 3309924 (1967-03-01), Kolin et al.
patent: 3449951 (1969-06-01), Westersten
patent: 3835705 (1974-09-01), Hadjidjanian
patent: 4015471 (1977-04-01), Marsh
patent: 4019385 (1977-04-01), Watanabe
patent: 4388834 (1983-06-01), Schmoock
patent: 4420983 (1983-12-01), Langdon
patent: 4430901 (1984-02-01), Rogers
patent: 4434666 (1984-03-01), Hemp et al.
patent: 4614121 (1986-09-01), Hansen et al.
patent: 4741215 (1988-05-01), Bohn et al.
patent: 4899593 (1990-02-01), Inami et al.
patent: 4920795 (1990-05-01), Codazzi et al.
patent: 5150061 (1992-09-01), Castel et al.
patent: 5583299 (1996-12-01), Murase
patent: 5646353 (1997-07-01), Mesch et al.
patent: 5708213 (1998-01-01), Batey
patent: 5773723 (1998-06-01), Lewis et al.
patent: 5852247 (1998-12-01), Batey
patent: 5880376 (1999-03-01), Sai et al.
patent: 6237424 (2001-05-01), Salmasi et al.
patent: 6595069 (2003-07-01), Frey et al.
patent: 6817249 (2004-11-01), Yamazaki
patent: 7117749 (2006-10-01), Turner
patent: 7213467 (2007-05-01), Turner et al.
patent: 7228748 (2007-06-01), Keech et al.
patent: 7369949 (2008-05-01), Yamamoto
patent: 7523675 (2009-04-01), Sulzer et al.
patent: 2004/0250629 (2004-12-01), Turner et al.
patent: 2007/0220993 (2007-09-01), Yamamoto
patent: 2007/0272030 (2007-11-01), Yamamoto
patent: 2008/0028867 (2008-02-01), Yamamoto
patent: 19708857 (1998-07-01), None
patent: 10046195 (2002-04-01), None
patent: 0 638 785 (1995-02-01), None
patent: 2081449 (1982-02-01), None
patent: 2314902 (1998-01-01), None
patent: 2324606 (1998-10-01), None
patent: 2 328 021 (1999-02-01), None
patent: 2358064 (2001-07-01), None
patent: 2371368 (2002-07-01), None
patent: 2376529 (2002-12-01), None
patent: 2377030 (2002-12-01), None
patent: 2385667 (2003-08-01), None
patent: 2 409 525 (2005-06-01), None
patent: 2 411 236 (2005-08-01), None
patent: 58085118 (1983-05-01), None
patent: 04295722 (1992-10-01), None
patent: 2002333354 (2002-11-01), None
patent: WO 01/50094 (2001-07-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Flow meter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flow meter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flow meter will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4207618

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.