Data processing: measuring – calibrating – or testing – Calibration or correction system – Fluid or fluid flow measurement
Reexamination Certificate
2011-07-12
2011-07-12
Nghiem, Michael P (Department: 2857)
Data processing: measuring, calibrating, or testing
Calibration or correction system
Fluid or fluid flow measurement
Reexamination Certificate
active
07979230
ABSTRACT:
Descriptions are provided for implementing flowmeter zero checking techniques. In operating a flowmeter, it may be the case that, even if previously calibrated, the flowmeter will produce erroneous measurements, that is, the flowmeter will indicate a non-zero flow during a period of zero flow. Therefore, zero checking features are provided that allow for fast and accurate determinations of the zero-flow values, for use in adjusting later measurements. The zero-checking features include a button attached to an exterior of a flowmeter, so that it is easily accessible to an operator of the flowmeter. The button, in conjunction with an internal zero checking system, allows for a display of a zero value in response to a request from the operator of the flowmeter.
REFERENCES:
patent: 4676112 (1987-06-01), Uematsu et al.
patent: 4817448 (1989-04-01), Hargarten
patent: 4852409 (1989-08-01), Herzl
patent: 4996871 (1991-03-01), Romano
patent: 5228327 (1993-07-01), Bruck
patent: 5321991 (1994-06-01), Kalotay
patent: 5419189 (1995-05-01), Lew et al.
patent: 5524084 (1996-06-01), Wang
patent: 5672832 (1997-09-01), Cucci
patent: 5796012 (1998-08-01), Gomi
patent: 6152177 (2000-11-01), Gerner
patent: 6243661 (2001-06-01), Baldwin et al.
patent: 6272438 (2001-08-01), Cunningham
patent: 6311136 (2001-10-01), Henry
patent: 6367336 (2002-04-01), Martina
patent: 6374190 (2002-04-01), Schupfner
patent: 6378354 (2002-04-01), Sharp
patent: 6505519 (2003-01-01), Henry
patent: 6687635 (2004-02-01), Horne
patent: 6997032 (2006-02-01), Mattar
patent: 7337084 (2008-02-01), Dutton
patent: 2004/0200259 (2004-10-01), Mattar
Endress & Hauser, “promass 63—Mass Flow Measuring System”; BA 014D/06/en/08.97, 7 pages, 1997.
Fish & Richardson P.C.
Invensys Systems Inc.
Nghiem Michael P
LandOfFree
Coriolis flowmeter with zero checking feature does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coriolis flowmeter with zero checking feature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coriolis flowmeter with zero checking feature will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2680998