Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Mechanical measurement system
Reexamination Certificate
2004-12-09
2008-12-23
Wachsman, Hal D (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Mechanical measurement system
C702S050000, C702S049000, C702S100000, C073S861010
Reexamination Certificate
active
07469188
ABSTRACT:
Method and apparatus for determining the flow rates and/or composition of a fluid comprising a multi-component mixture of a gas and at least one liquid in a pipe. Electromagnetic loss and phase measurements are performed in at least two directions of the pipe; the degree of annular flow is determined based on these measurements; the permittivity of the flow mixture is calculated, including corrections for the degree of annular flow; the mixture density is measured and compensated for the degree of annular flow; the temperature and pressure are obtained; the velocity of liquid and gas are determined, and based on the knowledge of densities and permittivities of the components of the fluid mixture, and the result from the above steps, the volume and mass flow rates of the gas and liquid(s) of the fluid mixture are calculated.
REFERENCES:
patent: 4458524 (1984-07-01), Meador et al.
patent: 4829831 (1989-05-01), Kefer et al.
patent: 5103181 (1992-04-01), Gaisford et al.
patent: 5135684 (1992-08-01), Mohn et al.
patent: 5367911 (1994-11-01), Jewell et al.
patent: 5485743 (1996-01-01), Taherian et al.
patent: 5929342 (1999-07-01), Thompson
patent: RE36597 (2000-03-01), Agar et al.
patent: 6097786 (2000-08-01), Groves et al.
patent: 6272934 (2001-08-01), Rajan et al.
patent: 6332111 (2001-12-01), Fincke
patent: 6335959 (2002-01-01), Lynch et al.
patent: 6405604 (2002-06-01), Berard et al.
patent: 6466035 (2002-10-01), Nyfors et al.
patent: 6601458 (2003-08-01), Gysling et al.
patent: 6655221 (2003-12-01), Aspelund et al.
patent: 6813962 (2004-11-01), Gysling et al.
patent: 2004/0244501 (2004-12-01), Nyfors et al.
patent: 0 510 774 (1992-10-01), None
patent: 2313445 (1997-11-01), None
patent: 2330660 (1999-04-01), None
patent: 90/02940 (1990-03-01), None
patent: 90/02941 (1990-03-01), None
patent: 00/45133 (2000-08-01), None
patent: 03/034051 (2003-04-01), None
International Search Report dated May 9, 2005.
International Search Report dated May 22, 2000.
Multi Phase Meters AS
Nields & Lemack
Wachsman Hal D
LandOfFree
Method and flow meter for determining the flow rate of a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and flow meter for determining the flow rate of a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and flow meter for determining the flow rate of a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4039296