WO2004074946A3 - Loss surveillance device for water distribution systems and flow sensor used in said device - Google Patents

Loss surveillance device for water distribution systems and flow sensor used in said device Download PDF

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Publication number
WO2004074946A3
WO2004074946A3 PCT/IB2004/000448 IB2004000448W WO2004074946A3 WO 2004074946 A3 WO2004074946 A3 WO 2004074946A3 IB 2004000448 W IB2004000448 W IB 2004000448W WO 2004074946 A3 WO2004074946 A3 WO 2004074946A3
Authority
WO
WIPO (PCT)
Prior art keywords
loss
flow
distribution systems
water distribution
flow sensor
Prior art date
Application number
PCT/IB2004/000448
Other languages
French (fr)
Other versions
WO2004074946A2 (en
Inventor
Carlo Camarlinghi
Original Assignee
Camarlinghi Giorgio
Carlo Camarlinghi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from ITPI20030014 external-priority patent/ITPI20030014A1/en
Priority claimed from ITPI20040003 external-priority patent/ITPI20040003A1/en
Application filed by Camarlinghi Giorgio, Carlo Camarlinghi filed Critical Camarlinghi Giorgio
Publication of WO2004074946A2 publication Critical patent/WO2004074946A2/en
Publication of WO2004074946A3 publication Critical patent/WO2004074946A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

A loss surveillance device, installed at the beginning of water distribution systems, is apt to automatically interrupt the flow of water in case of anomalous system working due to water loss. The device includes, in particular, a sensor for detecting the flow of fluids inside pipes, said sensor working in a wide range of flow rates thanks to a an electric resistor in contact with the flow to be detected, and to an electric control circuit apt to the feeding of said resistor and to measure the corresponding electric resistance according to an appropriate measuring cycle.
PCT/IB2004/000448 2003-02-24 2004-02-23 Loss surveillance device for water distribution systems and flow sensor used in said device WO2004074946A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ITPI20030014 ITPI20030014A1 (en) 2003-02-24 2003-02-24 SAFETY DEVICE FOR WATER SYSTEMS.
ITPI2003A000014 2003-02-24
ITPI20040003 ITPI20040003A1 (en) 2004-01-21 2004-01-21 FLOW SWITCH, IN PARTICULAR FOR SAFETY DEVICES FOR WATER SYSTEMS, AND SAFETY DEVICE USING THE FLOW SWITCH.
ITPI2004A000003 2004-01-21

Publications (2)

Publication Number Publication Date
WO2004074946A2 WO2004074946A2 (en) 2004-09-02
WO2004074946A3 true WO2004074946A3 (en) 2004-10-28

Family

ID=32910545

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2004/000448 WO2004074946A2 (en) 2003-02-24 2004-02-23 Loss surveillance device for water distribution systems and flow sensor used in said device

Country Status (1)

Country Link
WO (1) WO2004074946A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006054912A1 (en) * 2006-11-22 2008-05-29 Judo Wasseraufbereitung Gmbh Connection adapter for mounting water treatment device at pipe line, has electronic control device to receive measuring signals from flow rate measuring device, where actuator and electronic control device close or open closure device
MX2018016378A (en) * 2018-12-19 2019-08-29 Cesar Eduardo Martinez Perez Self-powered valve and automatic closure in case of leakage, and its met.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3880003A (en) * 1973-11-21 1975-04-29 Halliburton Co Fluid flowmeter
US4518955A (en) * 1981-05-06 1985-05-21 Knut Meyer Method and apparatus for detecting leakage in a fluid conduit system
FR2573868A1 (en) * 1984-11-27 1986-05-30 Nedellec Yves Safety device for detecting and limiting leaks in a pipe
US5086806A (en) * 1991-04-05 1992-02-11 Boyd Coffee Company Automatic flow control system and flood protector
US5409037A (en) * 1994-06-06 1995-04-25 Wheeler; Jaye F. Automatic device for the detection and shutoff of excess water flow in pipes
GB2287340A (en) * 1994-03-08 1995-09-13 Elimileak Ltd Flow measuring and leak detecting systems
US5971011A (en) * 1998-02-21 1999-10-26 Price; Stephen Jeffrey Water shut-off valve and leak detection system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3880003A (en) * 1973-11-21 1975-04-29 Halliburton Co Fluid flowmeter
US4518955A (en) * 1981-05-06 1985-05-21 Knut Meyer Method and apparatus for detecting leakage in a fluid conduit system
FR2573868A1 (en) * 1984-11-27 1986-05-30 Nedellec Yves Safety device for detecting and limiting leaks in a pipe
US5086806A (en) * 1991-04-05 1992-02-11 Boyd Coffee Company Automatic flow control system and flood protector
GB2287340A (en) * 1994-03-08 1995-09-13 Elimileak Ltd Flow measuring and leak detecting systems
US5409037A (en) * 1994-06-06 1995-04-25 Wheeler; Jaye F. Automatic device for the detection and shutoff of excess water flow in pipes
US5971011A (en) * 1998-02-21 1999-10-26 Price; Stephen Jeffrey Water shut-off valve and leak detection system

Also Published As

Publication number Publication date
WO2004074946A2 (en) 2004-09-02

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