GB2054207B - Valves and breathing apparatus incorporating such valves - Google Patents

Valves and breathing apparatus incorporating such valves

Info

Publication number
GB2054207B
GB2054207B GB8020307A GB8020307A GB2054207B GB 2054207 B GB2054207 B GB 2054207B GB 8020307 A GB8020307 A GB 8020307A GB 8020307 A GB8020307 A GB 8020307A GB 2054207 B GB2054207 B GB 2054207B
Authority
GB
United Kingdom
Prior art keywords
valves
breathing apparatus
apparatus incorporating
incorporating
breathing
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
GB8020307A
Other versions
GB2054207A (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.)
Chubb Panorama Ltd
Original Assignee
Chubb Panorama 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 Chubb Panorama Ltd filed Critical Chubb Panorama Ltd
Priority to GB8020307A priority Critical patent/GB2054207B/en
Publication of GB2054207A publication Critical patent/GB2054207A/en
Application granted granted Critical
Publication of GB2054207B publication Critical patent/GB2054207B/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • A62B7/02—Respiratory apparatus with compressed oxygen or air
    • A62B7/04—Respiratory apparatus with compressed oxygen or air and lung-controlled oxygen or air valves
    • 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
    • A62B9/02—Valves
    • A62B9/022—Breathing demand regulators
    • A62B9/027—Breathing demand regulators pilot operated, i.e. controlled by valve means sensitive to a reduced downstream pressure
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
    • G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
    • G05D16/0675—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting on the obturator through a lever
    • G05D16/0683—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting on the obturator through a lever using a spring-loaded membrane
    • G05D16/0691—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting on the obturator through a lever using a spring-loaded membrane characterised by the loading mechanisms of the membrane

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Medicine (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
GB8020307A 1979-06-21 1980-06-20 Valves and breathing apparatus incorporating such valves Expired GB2054207B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8020307A GB2054207B (en) 1979-06-21 1980-06-20 Valves and breathing apparatus incorporating such valves

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7921698 1979-06-21
GB8020307A GB2054207B (en) 1979-06-21 1980-06-20 Valves and breathing apparatus incorporating such valves

Publications (2)

Publication Number Publication Date
GB2054207A GB2054207A (en) 1981-02-11
GB2054207B true GB2054207B (en) 1983-08-17

Family

ID=26271925

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8020307A Expired GB2054207B (en) 1979-06-21 1980-06-20 Valves and breathing apparatus incorporating such valves

Country Status (1)

Country Link
GB (1) GB2054207B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132489B (en) * 1982-11-19 1986-03-19 Donald Rodocker Underwater breathing apparatus
GB2160108B (en) * 1984-06-15 1987-12-31 Draegerwerk Ag A respiratory gas control mechanism
GB9319580D0 (en) * 1993-09-22 1993-11-10 Racal Health & Safety Ltd Valves
US10364906B1 (en) * 2016-07-13 2019-07-30 Engineered Controls International, Llc Dielectric regulator

Also Published As

Publication number Publication date
GB2054207A (en) 1981-02-11

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Legal Events

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