GB2404031B - A variable area flow meter - Google Patents

A variable area flow meter

Info

Publication number
GB2404031B
GB2404031B GB0414912A GB0414912A GB2404031B GB 2404031 B GB2404031 B GB 2404031B GB 0414912 A GB0414912 A GB 0414912A GB 0414912 A GB0414912 A GB 0414912A GB 2404031 B GB2404031 B GB 2404031B
Authority
GB
United Kingdom
Prior art keywords
flow meter
variable area
area flow
variable
meter
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.)
Expired - Fee Related
Application number
GB0414912A
Other versions
GB0414912D0 (en
GB2404031A (en
Inventor
Easa Taheri Oskouei
Steve Barratt
Nadim Tahir
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.)
AES Engineering Ltd
Original Assignee
AES Engineering 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
Application filed by AES Engineering Ltd filed Critical AES Engineering Ltd
Publication of GB0414912D0 publication Critical patent/GB0414912D0/en
Publication of GB2404031A publication Critical patent/GB2404031A/en
Application granted granted Critical
Publication of GB2404031B publication Critical patent/GB2404031B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
    • G01F1/22—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by variable-area meters, e.g. rotameters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
    • G01F1/22—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by variable-area meters, e.g. rotameters
    • G01F1/26—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by variable-area meters, e.g. rotameters of the valve type

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
GB0414912A 2003-07-02 2004-07-02 A variable area flow meter Expired - Fee Related GB2404031B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0315497.8A GB0315497D0 (en) 2003-07-02 2003-07-02 Variable area flow meter

Publications (3)

Publication Number Publication Date
GB0414912D0 GB0414912D0 (en) 2004-08-04
GB2404031A GB2404031A (en) 2005-01-19
GB2404031B true GB2404031B (en) 2008-01-30

Family

ID=27676534

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0315497.8A Ceased GB0315497D0 (en) 2003-07-02 2003-07-02 Variable area flow meter
GB0414912A Expired - Fee Related GB2404031B (en) 2003-07-02 2004-07-02 A variable area flow meter

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0315497.8A Ceased GB0315497D0 (en) 2003-07-02 2003-07-02 Variable area flow meter

Country Status (2)

Country Link
US (1) US20050044964A1 (en)
GB (2) GB0315497D0 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE542112C2 (en) * 2017-11-14 2020-02-25 Mirola Ip Ab A flow indicator for oxygen addition to rebreathing systems
EP3527242A1 (en) * 2018-02-16 2019-08-21 Debiotech S.A. Infusion status indicator of a drug delivery device
EP3752220A1 (en) * 2018-02-16 2020-12-23 Debiotech S.A. Status indicator of a drug delivery system
US20210213192A1 (en) * 2018-07-11 2021-07-15 Debiotech S.A. Drug Delivery System

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3133440A (en) * 1960-09-14 1964-05-19 Wallace & Tiernan Inc Stabilizing apparatus for floats for variable flow meters
US3408865A (en) * 1966-10-13 1968-11-05 Roy L. Chenault Fluid flow indicating meter
US4361051A (en) * 1980-11-20 1982-11-30 Defasselle Robert J Flowmeter
BE1002318A6 (en) * 1988-07-25 1990-11-27 P D Chemie N V Control device for the flow of a fluid and pump design equipped with it

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2052022A (en) * 1932-11-10 1936-08-25 Brown Instr Co Flow meter
DE1955280B2 (en) * 1969-11-04 1972-12-14 Obstfelder, Heinz Jürgen von, 4330 Mülheim FLOW CONTROL UNIT
US4489614A (en) * 1980-11-20 1984-12-25 Defasselle Robert J Flowmeter
FI61759C (en) * 1981-07-20 1983-06-10 Safematic Ltd Oy VOLUMSTROEMSMAETARE FOER ETT STROEMMANDE MEDIUM

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3133440A (en) * 1960-09-14 1964-05-19 Wallace & Tiernan Inc Stabilizing apparatus for floats for variable flow meters
US3408865A (en) * 1966-10-13 1968-11-05 Roy L. Chenault Fluid flow indicating meter
US4361051A (en) * 1980-11-20 1982-11-30 Defasselle Robert J Flowmeter
BE1002318A6 (en) * 1988-07-25 1990-11-27 P D Chemie N V Control device for the flow of a fluid and pump design equipped with it

Also Published As

Publication number Publication date
US20050044964A1 (en) 2005-03-03
GB0315497D0 (en) 2003-08-06
GB0414912D0 (en) 2004-08-04
GB2404031A (en) 2005-01-19

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Legal Events

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

Effective date: 20100702