Measuring and testing – With fluid pressure – Leakage
Reexamination Certificate
2007-02-13
2007-02-13
Williams, Hezron (Department: 2856)
Measuring and testing
With fluid pressure
Leakage
Reexamination Certificate
active
10665921
ABSTRACT:
A leak detection system capable of automatically detecting a leak in a pressurized piping system. A pressure decay test is utilized to test for leaks in the piping system. Disruption to users of the piping system is reduced by only performing the pressure decay test when there is no user demand on the piping system. Thus, a leakage test is performed by first determining whether there is user demand on the piping system and proceeding with a pressure decay test only if there is no user demand present. If user demand is initiated during the performance of a pressure decay test, the system detects the user demand and halts the pressure decay test until the user demand stops.
REFERENCES:
patent: 2659383 (1953-11-01), Frager
patent: 4522229 (1985-06-01), Guido
patent: 4586142 (1986-04-01), Cota et al.
patent: 4665932 (1987-05-01), Quenin
patent: 5076321 (1991-12-01), Terry
patent: 5161563 (1992-11-01), Thompson
patent: 5179922 (1993-01-01), Bartholomew
patent: 5347264 (1994-09-01), Bjorkman
patent: 5441070 (1995-08-01), Thompson
patent: 5539384 (1996-07-01), Frasier
patent: 5636653 (1997-06-01), Titus
patent: 5920265 (1999-07-01), Johnson, Jr. et al.
patent: 6317051 (2001-11-01), Cohen
patent: 6339953 (2002-01-01), Ashworth
patent: 6549857 (2003-04-01), Fierro et al.
“Flow Meter” definition from The American Heritage Dictionary of the English Language, 3rd Edition 1992.
Davis Inotek Instruments online listing of Paddle Type Flow Switch devices.
Aqua Managers, Inc., Floodstop (FS ⅜-C) unit info., Home/Product page (www.aquamanagers.com) downloaded Nov 27, 2006.
Davis inotek (R) Instruments, PSR Series Paddle Type Flow Switch info., copyright 2004, downloaded sub-sequently (Davis.com).
FloLogic, Inc., The FloLogic Automatic Water Shutoff System unit info., Home page (www.flologic.com) downloaded Nov. 27, 2006 (copyright 2006) . . . with FloLogic System 3.0 Printable Spec sheet.
Give Systems, Inc., AQUA-STOP? water leak detection system, executive summary downloaded (www.building.org).
H2Control, Mitigator water control system, product info., home page . . . (www.themitigator.com) with “about” info., downloaded Nov. 27, 2006.
DynaQuip Controls, WaterCop automatic water shut-off systems, home page, product overview (how does it work? and where do I place sensors?), and FAQs (www.watercop.com) downloaded Nov. 27, 2006 copyright 2006.
Fitzgerald John
Hill Stanley K.
Michigan Aqua Tech
Rudy Christopher John
Williams Hezron
LandOfFree
Leak detection system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Leak detection system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Leak detection system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3850248