Title:
FLUID DETECTION CABLE
Document Type and Number:
WIPO Patent Application WO2005054805
Kind Code:
A3
Abstract:
A fluid detection cable is described for use in detecting the presence of leaks or other conductive fluids in areas where a particular fluid is not desired. Sensing leads (332, 324) have a center conductor (316, 310) that may be surrounded with a conductive polymer coating (318, 312). A non-conductive polymer (320, 314) at least partially surrounds the sensing leads providing a fluid transmission path for fluid to contact the conductive polymer. The non-conductive polymer protects the sensing leads from false alarms from contact with non-fluid conductive surfaces. The cable may monitor leads (328, 330) embedded in non-conductive polymers. The sensing leads and monitor leads are joined together in various configurations including sizes conforming to low cost industry standard telephone wires and network cables that allow industry standard connectors, tols, and accessories to be used. The cable is then connected to a control system that detects a fluid that is in contact with the sensing leads of the cable, e. g. by a wireless connection.
Inventors:
RAYMOND DONALD M (US)
RAYMOND DONALD A (US)
WHITHAM JEFFREY W (US)
RAYMOND DONALD A (US)
WHITHAM JEFFREY W (US)
Application Number:
PCT/US2004/040065
Publication Date:
October 06, 2005
Filing Date:
November 30, 2004
Export Citation:
Assignee:
RAYMOND AND LAE ENGINEERING IN (US)
RAYMOND DONALD M (US)
RAYMOND DONALD A (US)
WHITHAM JEFFREY W (US)
RAYMOND DONALD M (US)
RAYMOND DONALD A (US)
WHITHAM JEFFREY W (US)
International Classes:
G01M3/16; (IPC1-7): G01M3/16
Foreign References:
| US6144209A | 2000-11-07 | |||
| EP0354733A2 | 1990-02-14 | |||
| FR2709347A1 | 1995-03-03 | |||
| US4797621A | 1989-01-10 | |||
| US5235286A | 1993-08-10 | |||
| US6175310B1 | 2001-01-16 | |||
| US3981181A | 1976-09-21 |
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