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GB1344101A - Breathing valve - Google Patents

Breathing valve

Info

Publication number
GB1344101A
GB1344101A GB2182371A GB2182371A GB1344101A GB 1344101 A GB1344101 A GB 1344101A GB 2182371 A GB2182371 A GB 2182371A GB 2182371 A GB2182371 A GB 2182371A GB 1344101 A GB1344101 A GB 1344101A
Authority
GB
United Kingdom
Prior art keywords
valve
diaphragm
region
breathing
exhalation
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
GB2182371A
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 AB
Original Assignee
AGA AB
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 AB filed Critical AGA AB
Publication of GB1344101A publication Critical patent/GB1344101A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/02—Divers' equipment
    • B63C11/18—Air supply
    • B63C11/22—Air supply carried by diver
    • B63C11/2227—Second-stage regulators
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S137/00—Fluid handling
    • Y10S137/908—Respirator control

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

1344101 Breathing valves AGA AB 19 April 1971 [5 March 1970] 21823/71 Heading AST A breathing valve comprises a housing 10 with a breathing opening 9, an inhalation valve 17, a lever 4 and a control diaphragm 6 arranged to control the valve 17 by the lever, the breathing valve having means to provide an overpressure region 8 delimited by the control diaphragm 6 and a second diaphragm 3, and first and second exhalation valves 7, 18 respectively leading into and out of the region and operable to allow exhalation through the region by way of the exhalation valves, there being an overpressure in the breathing opening during inhalation and exhalation. An overpressure is produced in the breathing valve when lid 13 is adjusted to a position in which springs 1, 2 are compressed against diaphragm 3. A control spring 1 loads lever 4 via a central stud 5 and diaphragm 6 causing inhalation valve 17 to be opened for an inflow of gas. Some of the gas flows into region 8 via valve 7 to equalise the pressures in the inlet chamber 15 and region 8. The pressure increases until a balance is obtained between the forces on diaphragm 3 and spring 1. The inhalation valve 17 then closes when balance has been achieved and a sealing spring 2 loads the circumference of the diaphragm 3 so that the overpressure is maintained. Thus, upon inhalation the pressure in the inlet chamber 15 decreases and diaphragm 6 exerts a force on lever 4 which causes valve 17 to open and gas to flow into chamber 15. During exhalation the exhaled gas is expelled through valve 7 into the region 8. The increase in pressure causes diaphragm 3 to open allowing the exhaled gas to pass through holes 14 in the adjustable lid 13.
GB2182371A 1970-03-05 1971-04-19 Breathing valve Expired GB1344101A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE02892/70A SE335826B (en) 1970-03-05 1970-03-05

Publications (1)

Publication Number Publication Date
GB1344101A true GB1344101A (en) 1974-01-16

Family

ID=20260941

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2182371A Expired GB1344101A (en) 1970-03-05 1971-04-19 Breathing valve

Country Status (6)

Country Link
US (1) US3724482A (en)
JP (1) JPS5528702B1 (en)
DE (1) DE2110206C3 (en)
FR (1) FR2084270A5 (en)
GB (1) GB1344101A (en)
SE (1) SE335826B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2645675C3 (en) * 1976-10-09 1981-09-17 Drägerwerk AG, 2400 Lübeck Ventilation valve for ventilators
US4345593A (en) * 1978-07-19 1982-08-24 A-T-O Inc. Pressure-demand breathing apparatus with automatic air shut-off
US4269216A (en) * 1978-07-19 1981-05-26 A-T-O Inc. Pressure demand valve system
SE428759B (en) * 1979-10-09 1983-07-25 Aga Ab Breathing mask
SE428760B (en) * 1979-10-09 1983-07-25 Aga Ab Breathing mask
DE3015760C2 (en) * 1980-04-24 1982-03-25 Drägerwerk AG, 2400 Lübeck Lung-controlled compressed gas breathing apparatus with positive pressure in the breathing mask
US4345592A (en) * 1980-09-10 1982-08-24 A-T-O Inc. Pressure demand regulator with automatic shut-off
US4608976A (en) * 1982-02-16 1986-09-02 Canocean Resources, Ltd. Breathing protective apparatus with inhalation and exhalation regulator
GB8617950D0 (en) * 1986-07-23 1986-08-28 Helmets Ltd Gaseous fluid flow valves
NL9400102A (en) * 1994-01-21 1995-09-01 Pim De Bruijn Breathing air supply system.
DE19731068A1 (en) * 1997-07-19 1999-01-21 Joerg Rittmeister Closure device for exhale valve of breathing appliances and snorkels
BRPI0306282B8 (en) * 2003-12-26 2021-06-22 Intermed Equipamento Medico Hospitalar Ltda respiratory system ventilation system
CN107096142A (en) * 2017-06-22 2017-08-29 东台市江海救生消防设备有限公司 Positive-pressure air respirator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3149631A (en) * 1960-02-18 1964-09-22 Gasaccumulator Svenska Ab Arrangement in breathing apparatus
US3138154A (en) * 1960-05-13 1964-06-23 Gasaccumulator Svenska Ab Breathing device
FR1557809A (en) * 1967-12-19 1969-02-21
US3460559A (en) * 1968-08-26 1969-08-12 Bendix Corp Combined pressure regulator and relief valve

Also Published As

Publication number Publication date
DE2110206C3 (en) 1974-06-20
US3724482A (en) 1973-04-03
DE2110206B2 (en) 1973-11-08
JPS5528702B1 (en) 1980-07-30
FR2084270A5 (en) 1971-12-17
SE335826B (en) 1971-06-07
DE2110206A1 (en) 1971-09-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years