Measuring and testing – Volume or rate of flow – By measuring vibrations or acoustic energy
Reexamination Certificate
2005-06-01
2009-08-25
Fitzgerald, John (Department: 2856)
Measuring and testing
Volume or rate of flow
By measuring vibrations or acoustic energy
C073S061750
Reexamination Certificate
active
07578203
ABSTRACT:
This invention relates to a system for measuring solid particles, e.g. sand, in a fluid flow in a pipe, comprising at least one acoustic sensor for registering acoustic signals generated from collisions between particles and a surface. The pipe comprises a constriction through which the fluid flow passes, and that at least one of said acoustic sensors are positioned in relation to said constriction, and on a surface facing toward the flow so as to receive acoustic signals resulting from collisions between particles and the surface.
REFERENCES:
patent: 3816773 (1974-06-01), Baldwin et al.
patent: 3841144 (1974-10-01), Baldwin
patent: 3906780 (1975-09-01), Baldwin
patent: 3939709 (1976-02-01), Echtler
patent: 4135395 (1979-01-01), Sullivan et al.
patent: 4448062 (1984-05-01), Peterson et al.
patent: 4607254 (1986-08-01), Carlson
patent: 4674337 (1987-06-01), Jonas
patent: 4856344 (1989-08-01), Hunt
patent: 5083452 (1992-01-01), Hope
patent: 5257530 (1993-11-01), Beattie et al.
patent: 5311781 (1994-05-01), Gates
patent: 5571974 (1996-11-01), Nauful
patent: 5681986 (1997-10-01), Merk et al.
patent: 5747671 (1998-05-01), Hirota et al.
patent: 6698297 (2004-03-01), Gysling
patent: 2004/0000197 (2004-01-01), Gysling
patent: 2004/0007059 (2004-01-01), Tudor
patent: 0 254 882 (1988-02-01), None
patent: 0 769 695 (1997-04-01), None
patent: 2 396 011 (2004-06-01), None
patent: 166379 (1989-06-01), None
patent: 20015184 (2002-11-01), None
patent: 89/05974 (1989-06-01), None
patent: 2004/027350 (2004-04-01), None
International Search Report for PCT/NO2005/000179 mailed Aug. 8, 2005.
Norwegian Search Report for 20042353 dated Jan. 13, 2005.
International Preliminary Report on Patentability for PCT/NO2005/000179 completed Oct. 5, 2006.
Andersen Morten Ivar
Brandt Morten
Fitzgerald John
Nixon & Vanderhye P.C.
Roxar Flow Measurement AS
LandOfFree
System for sand detection at constrictions or flow obstacles... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for sand detection at constrictions or flow obstacles..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for sand detection at constrictions or flow obstacles... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4132898