GB1265693A - - Google Patents

Info

Publication number
GB1265693A
GB1265693A GB1265693DA GB1265693A GB 1265693 A GB1265693 A GB 1265693A GB 1265693D A GB1265693D A GB 1265693DA GB 1265693 A GB1265693 A GB 1265693A
Authority
GB
United Kingdom
Prior art keywords
tube
pressure drop
july
venturi
throat
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
Application number
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 filed Critical
Publication of GB1265693A publication Critical patent/GB1265693A/en
Expired 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
    • G01F1/34—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 measuring pressure or differential pressure
    • G01F1/36—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 measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/37—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 measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of communicating tubes or reservoirs with movable fluid levels, e.g. by U-tubes
    • G01F1/372—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 measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of communicating tubes or reservoirs with movable fluid levels, e.g. by U-tubes with electrical or electro-mechanical indication
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7759—Responsive to change in rate of fluid flow
    • Y10T137/776—Control by pressures across flow line valve

Abstract

1,265,693. Fluid-pressure servomotor systems. UNIVERSAL OIL PRODUCTS CO. July 3, 1969 [July 9, 1968], No.33621/69. Heading G3P. [Also in Division G1] The cross-sectional area of a flexible throat of a Venturi tube 1 is varied by evacuating an air-tight compartment 4 surrounding the throat in response to changes in the pressure drop across the Venturi. When the pressure drop between points a and c reaches a pre-set value mercury 6 in a manometer 5 closes a pair of electric contacts d, e to open a solenoid valve 19 and allow compressed air to inflate a tube 14 which rotates a valve 13 against a spring 16 to increase the vacuum in chamber 4. The tube 1 is thus expanded and the original pressure drop restored. A water mist may be passed through the tube together with a particle laden gas in a scrubber system. (For Figure see next page)
GB1265693D 1968-07-09 1969-07-03 Expired GB1265693A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74351068A 1968-07-09 1968-07-09

Publications (1)

Publication Number Publication Date
GB1265693A true GB1265693A (en) 1972-03-01

Family

ID=24989059

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1265693D Expired GB1265693A (en) 1968-07-09 1969-07-03

Country Status (6)

Country Link
US (1) US3511268A (en)
JP (1) JPS5022195B1 (en)
CA (1) CA921360A (en)
FR (1) FR2012591A1 (en)
GB (1) GB1265693A (en)
SE (1) SE367261B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109738032A (en) * 2019-03-14 2019-05-10 湖南大麓科技有限公司 A kind of pipeline flow measurement device and method

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442954A (en) * 1982-07-30 1984-04-17 National Instrument Company, Inc. Self-pressurizing pinch valve
US20140261421A1 (en) * 2013-03-15 2014-09-18 Apex Medical Corp. Gas flow detector and positive airway pressure apparatus containing the same
TWI594731B (en) * 2013-03-15 2017-08-11 雃博股份有限公司 Gas flow detector and positive airway pressure apparatus containing the same
US9718082B2 (en) * 2014-01-26 2017-08-01 Tokyo Electron Limited Inline dispense capacitor
US11905191B1 (en) 2021-02-17 2024-02-20 Aquastar Pool Products, Inc. Ozone injector device
US11084745B1 (en) 2021-02-17 2021-08-10 Aquastar Pool Products, Inc. Ozone injector device
USD972069S1 (en) 2021-02-17 2022-12-06 Aquastar Pool Products, Inc. Ozone injector device
US11358888B1 (en) 2021-02-17 2022-06-14 Aquastar Pool Products, Inc. Ozone injector device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1969366A (en) * 1934-08-07 Fluid flow controller
US1981576A (en) * 1928-05-25 1934-11-20 Pittsburgh Equitable Meter Co Fluid pressure regulator
US1934713A (en) * 1931-04-10 1933-11-14 Gen Zeolite Co Fluid flow controller
US2467150A (en) * 1943-11-12 1949-04-12 Carl H Nordell Valve
US2877791A (en) * 1955-08-15 1959-03-17 Fisher Governor Co Flexible diaphragm flow control valve
US3441245A (en) * 1966-03-25 1969-04-29 Galigher Co Fluid-actuated,anti-flutter,pinch-sleeve,throttling valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109738032A (en) * 2019-03-14 2019-05-10 湖南大麓科技有限公司 A kind of pipeline flow measurement device and method

Also Published As

Publication number Publication date
SE367261B (en) 1974-05-20
US3511268A (en) 1970-05-12
JPS5022195B1 (en) 1975-07-29
FR2012591A1 (en) 1970-03-20
DE1933945B2 (en) 1972-09-21
DE1933945A1 (en) 1970-01-22
CA921360A (en) 1973-02-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees