GB1124012A - Fluid flow indicators - Google Patents

Fluid flow indicators

Info

Publication number
GB1124012A
GB1124012A GB4153964A GB4153964A GB1124012A GB 1124012 A GB1124012 A GB 1124012A GB 4153964 A GB4153964 A GB 4153964A GB 4153964 A GB4153964 A GB 4153964A GB 1124012 A GB1124012 A GB 1124012A
Authority
GB
United Kingdom
Prior art keywords
flow
fluid
valve
pressure
valve member
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
GB4153964A
Inventor
Alec Thomas Bell
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.)
BOC Group Ltd
Original Assignee
British Oxigen 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 British Oxigen Ltd filed Critical British Oxigen Ltd
Priority to GB4153964A priority Critical patent/GB1124012A/en
Publication of GB1124012A publication Critical patent/GB1124012A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/0006—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances
    • G01P13/0066—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using differences of pressure in the fluid

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

1,124,012. Fluid-flow indicator. BRITISH OXYGEN CO. Ltd. Jan. 11, 1966 [Oct. 12, 1964], No.41539/64. Heading G1R. A fluid-flow indicator for insertion in a pipeline system comprises a main valve 8 having a valve member 11 movable between an open position in which it offers only a small resistance to the flow of fluid through the valve in one direction, and a closed position in which it offers a large or infinite resistance to flow through it in the opposite direction, and means 10 not controlled by the valve member for indicating when the pressure on the downstream side of the valve member when in its closed position is less than the pressure on its upstream side by more than a chosen amount giving an indication of fluid-flow or halt of fluid-flow. The flow indicating device shown Fig. 3 comprises a valve member 24 having ports 38 and biased against valve seat 25 by spring 26 with passages 28, 29 leading off the main flow channel 23 on either side of the valve. The passages apply pressure to the outer sides of two diaphragms 30, 31 which enclose a chamber 32 having a pressure responsive electric switch to give a signal when there is a difference in pressure between the two channels 28, 29. The device may be used in breathing apparatus.
GB4153964A 1964-10-12 1964-10-12 Fluid flow indicators Expired GB1124012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4153964A GB1124012A (en) 1964-10-12 1964-10-12 Fluid flow indicators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4153964A GB1124012A (en) 1964-10-12 1964-10-12 Fluid flow indicators

Publications (1)

Publication Number Publication Date
GB1124012A true GB1124012A (en) 1968-08-14

Family

ID=10420163

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4153964A Expired GB1124012A (en) 1964-10-12 1964-10-12 Fluid flow indicators

Country Status (1)

Country Link
GB (1) GB1124012A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0173253A2 (en) * 1984-08-30 1986-03-05 Lang Apparatebau Gmbh Dosing control device and method for use of the device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0173253A2 (en) * 1984-08-30 1986-03-05 Lang Apparatebau Gmbh Dosing control device and method for use of the device
EP0173253A3 (en) * 1984-08-30 1987-10-28 Lang Apparatebau Gmbh Dosing control device and method for use of the device

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