GB2320351A - Flow control means - Google Patents

Flow control means

Info

Publication number
GB2320351A
GB2320351A GB9804545A GB9804545A GB2320351A GB 2320351 A GB2320351 A GB 2320351A GB 9804545 A GB9804545 A GB 9804545A GB 9804545 A GB9804545 A GB 9804545A GB 2320351 A GB2320351 A GB 2320351A
Authority
GB
United Kingdom
Prior art keywords
flow
sensing means
fluid
move
closed condition
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
GB9804545A
Other versions
GB2320351B (en
GB9804545D0 (en
Inventor
Jack Frank Pennell
David Neil Wragg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ryford Ltd
Original Assignee
Ryford Ltd
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 GBGB9518066.7A external-priority patent/GB9518066D0/en
Priority claimed from GBGB9615670.8A external-priority patent/GB9615670D0/en
Application filed by Ryford Ltd filed Critical Ryford Ltd
Priority to GB9804545A priority Critical patent/GB2320351B/en
Priority claimed from PCT/GB1996/002183 external-priority patent/WO1997009662A1/en
Publication of GB9804545D0 publication Critical patent/GB9804545D0/en
Publication of GB2320351A publication Critical patent/GB2320351A/en
Application granted granted Critical
Publication of GB2320351B publication Critical patent/GB2320351B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means
    • G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
    • G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
    • G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means

Abstract

A flow control means comprising a flow sensing means (18), a valve means (15), actuating means (16) to move said valve means between an open and a closed condition, and a control means (17) to cause said actuating means to move said valve means between said open and closed conditions, in accordance with a predetermined flow of said fluid. The flow sensing means may comprise at least one of: a) means to move said valve means to said closed condition to interrupt the flow of fluid therethrough after uninterrupted flow of fluid past said flow sensing means for a predetermined period, b) means to move said valve means a said closed condition to interrupt flow of fluid therethrough upon intermittent flow of fluid past said sensing means. The flow sensing means may comprise at least one of: a) a first flow sensing means (18a) adapted to sense a relatively high flow rate and wherein said control means (17) causes said actuating means (16) to move said valve means to said closed condition to interrupt said flow of fluid therethrough after said uninterrupted flow of fluid past said first flow sensing means for said predetermined time period, and or upon said intermittent flow of fluid past said first flow sensing means, b) a second flow sensing means (18b) adapted to sense a relatively low flow rate and wherein said control means (17) is adapted to cause said actuating means (16) to move said value means to said closed condition to interrupt flow of fluid therethrough upon said intermittent flow of fluid past said second flow sensing means and or after uninterrupted flow of fluid past said second flow sensing means for a predetermined time period.
GB9804545A 1995-09-05 1996-09-05 Flow control means Expired - Fee Related GB2320351B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9804545A GB2320351B (en) 1995-09-05 1996-09-05 Flow control means

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB9518066.7A GB9518066D0 (en) 1995-09-05 1995-09-05 Flow control means
GBGB9615670.8A GB9615670D0 (en) 1996-07-25 1996-07-25 Flow control means
GB9804545A GB2320351B (en) 1995-09-05 1996-09-05 Flow control means
PCT/GB1996/002183 WO1997009662A1 (en) 1995-09-05 1996-09-05 Flow control means

Publications (3)

Publication Number Publication Date
GB9804545D0 GB9804545D0 (en) 1998-05-06
GB2320351A true GB2320351A (en) 1998-06-17
GB2320351B GB2320351B (en) 1999-09-29

Family

ID=27267888

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9804545A Expired - Fee Related GB2320351B (en) 1995-09-05 1996-09-05 Flow control means

Country Status (1)

Country Link
GB (1) GB2320351B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2360365A (en) * 2000-03-16 2001-09-19 John Michael Smith Controlling a water supply to minimise leakages
GB2377311A (en) * 2001-02-28 2003-01-08 Gareth Paul Kinsey Fluid Flow control with automatic valve closure to protect premises when abnormal flow conditions are sensed.
US7215788B2 (en) 1995-03-31 2007-05-08 1 . . . Limited Digital loudspeaker
US7319641B2 (en) 2001-10-11 2008-01-15 1 . . . Limited Signal processing device for acoustic transducer array

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589435A (en) * 1984-09-24 1986-05-20 Aldrich Donald C Water shutoff valve
US4797666A (en) * 1986-09-16 1989-01-10 Baxter Carlton J Method and apparatus for monitoring fluid flow
US4926901A (en) * 1989-06-28 1990-05-22 Waltenburg Harold D Fluid supply line flow control device
US5000224A (en) * 1989-10-17 1991-03-19 Water Conservation, Inc. Water shut-off valve assembly
US5007453A (en) * 1989-04-19 1991-04-16 Yehuda Berkowitz Fluid flow control device
US5056554A (en) * 1987-02-20 1991-10-15 White F Grove Fluid loss, damage prevention and control system
US5086806A (en) * 1991-04-05 1992-02-11 Boyd Coffee Company Automatic flow control system and flood protector
GB2251506A (en) * 1990-12-14 1992-07-08 Platon Flow Control Leak detector
US5377529A (en) * 1993-11-15 1995-01-03 Boyd; Mark A. Leak detecting device, and method of constructing and utilizing same
EP0656527A1 (en) * 1993-12-02 1995-06-07 S.F.M. Sophisticated Water Meters Ltd. Compound flow meter and leak detector system with a valve that is shut under abnormal flow conditions

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4589435A (en) * 1984-09-24 1986-05-20 Aldrich Donald C Water shutoff valve
US4797666A (en) * 1986-09-16 1989-01-10 Baxter Carlton J Method and apparatus for monitoring fluid flow
US5056554A (en) * 1987-02-20 1991-10-15 White F Grove Fluid loss, damage prevention and control system
US5007453A (en) * 1989-04-19 1991-04-16 Yehuda Berkowitz Fluid flow control device
US4926901A (en) * 1989-06-28 1990-05-22 Waltenburg Harold D Fluid supply line flow control device
US5000224A (en) * 1989-10-17 1991-03-19 Water Conservation, Inc. Water shut-off valve assembly
GB2251506A (en) * 1990-12-14 1992-07-08 Platon Flow Control Leak detector
US5086806A (en) * 1991-04-05 1992-02-11 Boyd Coffee Company Automatic flow control system and flood protector
US5377529A (en) * 1993-11-15 1995-01-03 Boyd; Mark A. Leak detecting device, and method of constructing and utilizing same
EP0656527A1 (en) * 1993-12-02 1995-06-07 S.F.M. Sophisticated Water Meters Ltd. Compound flow meter and leak detector system with a valve that is shut under abnormal flow conditions

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7215788B2 (en) 1995-03-31 2007-05-08 1 . . . Limited Digital loudspeaker
GB2360365A (en) * 2000-03-16 2001-09-19 John Michael Smith Controlling a water supply to minimise leakages
GB2360365B (en) * 2000-03-16 2002-04-24 John Michael Smith Controlling a water supply
GB2377311A (en) * 2001-02-28 2003-01-08 Gareth Paul Kinsey Fluid Flow control with automatic valve closure to protect premises when abnormal flow conditions are sensed.
US7319641B2 (en) 2001-10-11 2008-01-15 1 . . . Limited Signal processing device for acoustic transducer array

Also Published As

Publication number Publication date
GB2320351B (en) 1999-09-29
GB9804545D0 (en) 1998-05-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20000905