Measuring and testing – With fluid pressure – Leakage
Reexamination Certificate
2003-09-19
2008-10-07
Larkin, Daniel S (Department: 2856)
Measuring and testing
With fluid pressure
Leakage
C073S040000
Reexamination Certificate
active
07430897
ABSTRACT:
The invention provides an apparatus and method for detecting the location of a gas leak within a test region. The invention comprises an array of calibrated sensors for measuring a plurality of gas concentrations, a control system coupled to the sensor array for calculating and optionally displaying a direction of higher gas concentration, and, an actuator for moving the sensor array under control of the control system, wherein the control system causes the array of sensors to measure the gas concentrations and move in the direction of higher concentration until a stopping condition is achieved. The stopping condition may be achieved when the measured gas concentration exceeds a predetermined threshold or when the concentration otherwise likely corresponds to the leak location based on a comparison with previously measured values.
REFERENCES:
patent: 3786675 (1974-01-01), Delatorre et al.
patent: 3925666 (1975-12-01), Allan et al.
patent: 5214412 (1993-05-01), Gavlak et al.
patent: 5279795 (1994-01-01), Hughes et al.
patent: 5301538 (1994-04-01), Recla
patent: 5440916 (1995-08-01), Stone et al.
patent: 5979239 (1999-11-01), Youngquist et al.
patent: 6018169 (2000-01-01), Tohyama
patent: 6156447 (2000-12-01), Bette et al.
patent: 6157033 (2000-12-01), Chudnovsky
patent: 6265222 (2001-07-01), DiMeo, Jr. et al.
patent: 6293137 (2001-09-01), Liu et al.
patent: 6422061 (2002-07-01), Sunshine et al.
patent: 6492043 (2002-12-01), Knights et al.
patent: 6519041 (2003-02-01), Berthold
patent: 6596236 (2003-07-01), DiMeo, Jr. et al.
patent: 6701772 (2004-03-01), Kreichauf et al.
patent: 2003/0024813 (2003-02-01), Taniguchi
patent: 05196534 (1993-08-01), None
patent: 07333097 (1995-12-01), None
patent: WO 9846376 (1998-10-01), None
patent: WO 03012387 (2003-02-01), None
patent: WO 2003012387 (2003-02-01), None
Hu Cheng
Qu Xidong
Stanley Kevin G.
Wu Jonathan Q. M.
Larkin Daniel S
National Research Council of Canada
Oyen Wiggs Green & Mutala LLP
LandOfFree
Method and apparatus for detecting and locating gas leaks 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 apparatus for detecting and locating gas leaks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for detecting and locating gas leaks will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4014841