GB2001537A - Control circuit for fluid flow system - Google Patents

Control circuit for fluid flow system

Info

Publication number
GB2001537A
GB2001537A GB7830163A GB7830163A GB2001537A GB 2001537 A GB2001537 A GB 2001537A GB 7830163 A GB7830163 A GB 7830163A GB 7830163 A GB7830163 A GB 7830163A GB 2001537 A GB2001537 A GB 2001537A
Authority
GB
United Kingdom
Prior art keywords
control circuit
fluid flow
flow system
valves
receiver
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
GB7830163A
Other versions
GB2001537B (en
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.)
AGA SPIRA Ltd
Original Assignee
AGA SPIRA 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 AGA SPIRA Ltd filed Critical AGA SPIRA Ltd
Priority to GB7830163A priority Critical patent/GB2001537B/en
Publication of GB2001537A publication Critical patent/GB2001537A/en
Application granted granted Critical
Publication of GB2001537B publication Critical patent/GB2001537B/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/006—Indicators or warning devices, e.g. of low pressure, contamination

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

A control circuit for a fluid flow system includes an on/off valve 2, and non-return valves 34 and 36; these valves being pressure operable. When the pressure from a main supply is less than a preselected value the valves 2 and 34 are opened to allow fluid from a standby supply 18 to operate a warning device 12 and to pass to a receiver. The control circuit is particularly suitable for an air breathing system in which the receiver can be a breathing face mask. <IMAGE>
GB7830163A 1977-04-26 1978-07-18 Control circuit Expired GB2001537B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7830163A GB2001537B (en) 1977-04-26 1978-07-18 Control circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1725277 1977-04-26
GB7830163A GB2001537B (en) 1977-04-26 1978-07-18 Control circuit

Publications (2)

Publication Number Publication Date
GB2001537A true GB2001537A (en) 1979-02-07
GB2001537B GB2001537B (en) 1982-01-20

Family

ID=26252573

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7830163A Expired GB2001537B (en) 1977-04-26 1978-07-18 Control circuit

Country Status (1)

Country Link
GB (1) GB2001537B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672221A1 (en) * 1991-02-06 1992-08-07 Matisec The device for supplying air to non-autonomous breathing apparatuses
FR2691635A1 (en) * 1992-06-02 1993-12-03 Matisec Air supply distributor for respirator - comprises single casing enclosing main supply passage, branch passage for emergency reserve supply, and auxiliary conduit connected to alarm whistle
US5603315A (en) * 1995-08-14 1997-02-18 Reliable Engineering Multiple mode oxygen delivery system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672221A1 (en) * 1991-02-06 1992-08-07 Matisec The device for supplying air to non-autonomous breathing apparatuses
FR2691635A1 (en) * 1992-06-02 1993-12-03 Matisec Air supply distributor for respirator - comprises single casing enclosing main supply passage, branch passage for emergency reserve supply, and auxiliary conduit connected to alarm whistle
US5603315A (en) * 1995-08-14 1997-02-18 Reliable Engineering Multiple mode oxygen delivery system

Also Published As

Publication number Publication date
GB2001537B (en) 1982-01-20

Similar Documents

Publication Publication Date Title
GB1498059A (en) Portable respiration apparatus
ATE119467T1 (en) TIME CONTROL CIRCUIT FOR PNEUMATIC DEVICES.
GB2074458A (en) Respiratory apparatus
GB2001537A (en) Control circuit for fluid flow system
JPS53444A (en) Gas supply control device
JPS531785A (en) Pressure or flow volume quick control system
GB1131412A (en) Improvements relating to diving equipment
JPS5324624A (en) Constant internal pressure keeping device for pressure container
GB2011584A (en) Backflow preventing valve
JPS53129788A (en) Control method for controlling flow rate or pressure by operating two or more valves
ES289070U (en) Pressure limiting valve assembly
JPS53132670A (en) Braking force doubler device
GB783434A (en) Improvements in and relating to breathing apparatus
JPS53317A (en) Secondary air controlling valve device
SE8202052L (en) HOSE OR WIRE BREAK VALVE DEVICE
GB912418A (en) Improvements in or relating to masks
GB775611A (en) Underwater breathing apparatus
JPS5442624A (en) Cooling device for transformer
JPS5257421A (en) Diagnosis equipment for secondary air supply equipment
GB946748A (en) Improvements relating to underwater swimming and diving suits
JPS5790243A (en) Liquid pressure control valve for dual system piping
JPS53443A (en) Gas supply control device
DE3164660D1 (en) Apparatus for monitoring air pressure in at least one tyre of a vehicle
JPS5385269A (en) Spring brake pressure control device
JPS547017A (en) Gas filter for automobile negative pressure operating device

Legal Events

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