EP0182979B1 - Atemschutzgerät mit Regeneration der Atemluft - Google Patents

Atemschutzgerät mit Regeneration der Atemluft Download PDF

Info

Publication number
EP0182979B1
EP0182979B1 EP85110550A EP85110550A EP0182979B1 EP 0182979 B1 EP0182979 B1 EP 0182979B1 EP 85110550 A EP85110550 A EP 85110550A EP 85110550 A EP85110550 A EP 85110550A EP 0182979 B1 EP0182979 B1 EP 0182979B1
Authority
EP
European Patent Office
Prior art keywords
respiratory
breathing
chemical cartridge
connection
air
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
EP85110550A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0182979A3 (en
EP0182979A2 (de
Inventor
Ernst-Günther Kolbe
Hasso Weinmann
Wolfgang Dipl.-Ing. Drews
Wolfgang Eckstein
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.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
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 Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Publication of EP0182979A2 publication Critical patent/EP0182979A2/de
Publication of EP0182979A3 publication Critical patent/EP0182979A3/de
Application granted granted Critical
Publication of EP0182979B1 publication Critical patent/EP0182979B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B21/00—Devices for producing oxygen from chemical substances for respiratory apparatus
    • 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

Definitions

  • the invention relates to a breathing apparatus with regeneration of the breathing air with the features of the preamble of claim 1.
  • Such a breathing apparatus has become known from DE-A 25 04 881.
  • the chemical cartridge is arranged between a breathing connection and a breathing bag, so that the exhaled air flows into the breathing bag when the chemical cartridge flows horizontally.
  • the air from the breathing bag is returned to the breathing connection via a non-return valve, bypassing the chemical cartridge.
  • a breathing apparatus is used in what is known as circulatory operation.
  • the exhaled air flows through the chemical cartridge, an exothermic reaction takes place, through which C0 2 is bound and 0 2 is released.
  • the heated exhaled air thus regenerated is cooled to such temperatures during its stay in the breathing bag that the wearer can breathe it in again.
  • a disadvantage of the devices in circulatory operation is the fact that they require their own channels or chambers to return the inhaled air, separate from the air flow of the exhaled air. To avoid this, it is known to operate breathing apparatus of the type mentioned in the pendulum system. Both inhaled and exhaled air flow through the chemical cartridge. However, to cool the inhaled air, heat exchangers must then be provided between the chemical cartridge and the breathing connection. Such heat exchangers are known for example from DE-C-335931 and from DE-U-1918991.
  • the heat exchanger consists of a surface cooler in a bypass line between an air cleaning insert and the breathing tube.
  • the object of the present invention is seen in improving a breathing apparatus of the type mentioned in such a way that a heat exchanger required for the pendulum operation does not affect its compact design.
  • a respiratory protective device also has a compact design for use in pendulum operation, which enables the wearer to wear the respiratory protective device both in the packaged state without bulky protrusion on the body, and in a simple manner when used to wear the mouth of the wearer without impairing his freedom of movement by excessive weight or bulky design, as is also the case with the known respiratory protective devices in circulatory operation.
  • the surface cooler is designed in such a way that it is arranged in the form of flat and wide piping around the jacket of the chemical cartridge, a certain distance from the jacket being maintained in order to prevent the surface cooler from heating up and to ensure that it is completely flushed with ambient air.
  • the breathing apparatus is only slightly enlarged on the circumference of the chemical cartridge.
  • a chin rest is attached below the breathing connection.
  • the head harness is attached to the surface of the chemical cartridge, also in order to achieve a compact design of the breathing apparatus.
  • the breathing apparatus in the shuttle mode consists of a chemical cartridge 1, on one end face 2 of which the surface cooler 14 is attached to the breathing connection 13, and on the other end face 4 of which the breathing bag 7 is fastened.
  • the breathing apparatus is attached with the head strap 6.
  • a pressure relief valve 9 is provided on the breathing bag 7.
  • a starter 15 is connected to the chemical cartridge 1, which supplies the oxygen required in the first few minutes as long as the chemical filling has not yet reacted.
  • the device wearer exhales through the breathing connection 13 into the conduits of the surface cooler 14 arranged in a ring at a distance from the outer surface 5 of the chemical cartridge 1, its exhaled air reaching the prechamber 11 and from there through the chemical filling 3 into the breathing bag 7.
  • the chemical filling 3 removes C0 2 from the exhaled air by an exothermic reaction and releases O 2 to it.
  • the breathing air enriched with O 2 from the breathing bag 7 is again passed through the chemical cartridge 1 into the prechamber 11.
  • the inhaled air absorbs part of the heat of reaction. However, this is released into the environment again during the flow through the surface cooler 14.
  • the flat cable cross-section proves to be an additional advantage, since it ensures that the dead space volume for breathing is as small as possible.
  • a chin rest 12 attached to the prechamber 11 serves to facilitate the mounting of the breathing apparatus.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Medicine (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP85110550A 1984-11-24 1985-08-22 Atemschutzgerät mit Regeneration der Atemluft Expired EP0182979B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843442882 DE3442882A1 (de) 1984-11-24 1984-11-24 Atemschutzgeraet mit regeneration der atemluft
DE3442882 1984-11-24

Publications (3)

Publication Number Publication Date
EP0182979A2 EP0182979A2 (de) 1986-06-04
EP0182979A3 EP0182979A3 (en) 1987-01-14
EP0182979B1 true EP0182979B1 (de) 1989-06-14

Family

ID=6251050

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85110550A Expired EP0182979B1 (de) 1984-11-24 1985-08-22 Atemschutzgerät mit Regeneration der Atemluft

Country Status (5)

Country Link
US (1) US4665910A (xx)
EP (1) EP0182979B1 (xx)
JP (1) JPS61131763A (xx)
DE (2) DE3442882A1 (xx)
ZA (1) ZA856638B (xx)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3700458A1 (de) * 1987-01-09 1988-07-21 Draegerwerk Ag Atemschutzgeraet mit regeneration der atemluft
DE3840606A1 (de) * 1988-12-02 1990-06-07 Draegerwerk Ag Atemschutzgeraet mit mehreren regenerationspatronen und atembeutel
GB8916449D0 (en) * 1989-07-19 1989-09-06 Sabre Safety Ltd Emergency escape breathing apparatus
US5301665A (en) * 1991-05-05 1994-04-12 Dragerwerk Aktiengesellschaft Respirator for emergency oxygen supply for passengers in aircraft
US6340024B1 (en) 1993-01-07 2002-01-22 Dme Corporation Protective hood and oral/nasal mask
FR2750869B1 (fr) * 1996-07-11 1998-11-06 Commeinhes Remco Appareil respiratoire a fonctionnement en circuit ferme
US6089230A (en) * 1998-11-03 2000-07-18 Be Aerospace Intellectual Property, Inc. Aircraft passenger oxygen delivery unit having shiftable oxygen generating candle
ES2249312T3 (es) * 1999-12-06 2006-04-01 Fahrenheit 212 Limited Metodo y aparato de respiracion.
SE516250C2 (sv) * 2000-04-28 2001-12-10 Oskar Fraanberg Uppladdningsbar andningsapparat i synnerhet dykapparat
SE1250965A1 (sv) * 2012-08-30 2014-03-01 Oxyreb Ab Ventilanordning och ett återandningssystem innefattande nämnda ventilanordning

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE335931C (de) * 1916-07-23 1921-04-19 Alexander Bernhard Draeger Dr Frei tragbares Atmungsgeraet

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191223654A (en) * 1912-10-16 1913-03-20 William Henry Hill Improvements in, or connected with, Breathing Apparatus for use in Irrespirable Gases in Mines and other Places.
AT83819B (de) * 1917-08-11 1921-05-10 Auergesellschaft Gmbh Zwischenstück für geschlossene Atmungsgeräte.
GB488666A (en) * 1937-01-19 1938-07-12 Hippolyte Albert Marcel Regnau Improvements in and relating to regenerative breathing apparatus for protection against fumes, powders and noxious gases
US2403981A (en) * 1939-11-01 1946-07-16 Mine Safety Appliances Co Breathing apparatus
DE1132802B (de) * 1960-07-30 1962-07-05 Auergesellschaft Gmbh Sauerstoffatemschutzgeraet mit Pendelatmung
DE1918991U (de) * 1963-07-18 1965-07-01 Draegerwerk Ag Kohlenmonoxyd-filterselbstretter.
DE1234134C2 (de) * 1965-07-30 1973-11-22 Auergesellschaft Gmbh Filterselbstretter zum schutz gegen kohlenoxyd
DE1259207B (de) * 1966-07-08 1968-01-18 Auergesellschaft Gmbh Atemschutzgeraet mit Pendelatmung
FR1549605A (xx) * 1967-01-20 1968-12-13
US3650269A (en) * 1970-09-25 1972-03-21 Litton Systems Inc Emergency oxygen rebreather system
US3893459A (en) * 1974-03-04 1975-07-08 Mine Safety Appliances Co Emergency breathing apparatus
US3938512A (en) * 1974-03-04 1976-02-17 Mine Safety Appliances Company Emergency breathing apparatus
SU585638A1 (ru) * 1975-12-22 1978-08-25 Всесоюзный научно-исследовательский институт горноспасательного дела Шахтный изолирующий самоспасатель на химически св занном кислороде
JPS52142897A (en) * 1976-05-24 1977-11-29 Midori Anzen Kogyo Respiring bag for emergency respirator
JPS5478891A (en) * 1977-12-05 1979-06-23 Midori Anzen Kogyo Respirator
DE3111795C3 (de) * 1981-03-20 1986-02-20 Auergesellschaft Gmbh, 1000 Berlin Atembeutel mit einem im Innern angeordneten Luftverteiler

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE335931C (de) * 1916-07-23 1921-04-19 Alexander Bernhard Draeger Dr Frei tragbares Atmungsgeraet

Also Published As

Publication number Publication date
ZA856638B (en) 1986-07-30
DE3570983D1 (en) 1989-07-20
DE3442882A1 (de) 1986-05-28
DE3442882C2 (xx) 1989-03-30
JPH0349270B2 (xx) 1991-07-29
EP0182979A3 (en) 1987-01-14
JPS61131763A (ja) 1986-06-19
US4665910A (en) 1987-05-19
EP0182979A2 (de) 1986-06-04

Similar Documents

Publication Publication Date Title
DE2644305C3 (de) Wärme- und Gasschutzanzug
EP0182979B1 (de) Atemschutzgerät mit Regeneration der Atemluft
EP0082246B1 (de) Notatemschutzgerät
DE3700458C2 (xx)
DE3111795C3 (de) Atembeutel mit einem im Innern angeordneten Luftverteiler
DE2106481B2 (de) Atemschutzgerät für Notfälle
DE2852240A1 (de) Luftreinigungspatrone fuer atemschutzgeraete
DE2702192A1 (de) Atemschutzgeraet mit sauerstoffabgebender chemikalpatrone
DE2504881A1 (de) Atemapparat fuer notfaelle
DE4411560C1 (de) Chemikalsauerstoffgerät
EP0172923B2 (de) Atemschutzgerät als Sauerstoffselbstretter
DD285930A5 (de) Atemschutzgeraet mit mehreren regenerationspatronen und atembeutel
DE1243984B (de) Atemschutzgeraet mit Kreislauf der Atemluft
DE4137331C2 (de) Chemikalsauerstoffgerät
DE19652074C2 (de) Atemschutzgerät
DE3103303C2 (de) Vorrichtung zur Reinigung von mit Schadstoffen belasteter Luft
DE1237903C2 (de) Kohelnmonixyd-filterselbstretter
DE301645C (xx)
EP0171458B1 (de) Atemschutzgerät als Sauerstoffselbstretter
DE1434909A1 (de) Kohlenmonoxyd-Filterselbstretter
DE1918991U (de) Kohlenmonoxyd-filterselbstretter.
DE1195602C2 (de) Atemschutzgeraet mit pendelatmung
DE3149425C2 (de) Atemschutzfilter
AT37103B (de) Kopfausrüstung für Atmungsapparate mit Gesichtsmaske.
DE2726405B2 (de) Atemschutzgerät mit Zweiwegatmung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19850906

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB

17Q First examination report despatched

Effective date: 19880406

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REF Corresponds to:

Ref document number: 3570983

Country of ref document: DE

Date of ref document: 19890720

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20040726

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20040820

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040913

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20050821

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20