Measuring and testing – Volume or rate of flow – By measuring vibrations or acoustic energy
Reexamination Certificate
2011-07-19
2011-07-19
Patel, Harshad (Department: 2855)
Measuring and testing
Volume or rate of flow
By measuring vibrations or acoustic energy
Reexamination Certificate
active
07980142
ABSTRACT:
The present invention is directed to an ultrasonic flow rate measuring device capable of improving the measurement accuracy. Such an ultrasonic flow rate measuring device comprises first to third ultrasonic flow rate sensors in the measurement passage which are equipped with first ultrasonic wave transmitter-receivers and second ultrasonic wave transmitter-receivers. First to third ultrasonic wave propagation paths connecting the first ultrasonic wave transmitter-receiver and the second ultrasonic wave transmitter-receivers, respectively, intersect at different angles with the flow direction of fluid flowing through the measurement passages. The ultrasonic flow rate measuring device of the present invention obtains a flow rate measurement selectively from one of the first to third ultrasonic flow rate sensors in response to a flow rate Q.
REFERENCES:
patent: 4102186 (1978-07-01), Brown
patent: 4545244 (1985-10-01), Yasuda et al.
patent: 4596133 (1986-06-01), Smalling et al.
patent: 5437194 (1995-08-01), Lynnworth
patent: 7237441 (2007-07-01), Umekage et al.
patent: 7360449 (2008-04-01), Umekage et al.
patent: 2010/0005902 (2010-01-01), Iwanaga et al.
patent: 1612520 (2006-01-01), None
patent: 62-009224 (1987-01-01), None
patent: 2001-208585 (2001-08-01), None
patent: 2002-257607 (2002-09-01), None
patent: 2002-267513 (2002-09-01), None
patent: 2002-372445 (2002-12-01), None
patent: 2004-251700 (2004-09-01), None
patent: 2004-257744 (2004-09-01), None
European Search Report for European Application No. 07831457.2, dated Oct. 16, 2009, 8 pages.
International Search Report issued Jan. 29, 2008 in International application No. PCT/JP2007/071726, 2 pages.
Adachi Akihisa
Nakabayashi Yuji
Satou Masato
Brinks Hofer Gilson & Lione
Panasonic Corporation
Patel Harshad
LandOfFree
Ultrasonic flow rate measuring device having a plurality of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultrasonic flow rate measuring device having a plurality of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrasonic flow rate measuring device having a plurality of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2714526