EP0956100B1 - Breathing equipment - Google Patents
Breathing equipment Download PDFInfo
- Publication number
- EP0956100B1 EP0956100B1 EP96923136A EP96923136A EP0956100B1 EP 0956100 B1 EP0956100 B1 EP 0956100B1 EP 96923136 A EP96923136 A EP 96923136A EP 96923136 A EP96923136 A EP 96923136A EP 0956100 B1 EP0956100 B1 EP 0956100B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- breathing
- hood
- mask
- valve
- equipment according
- 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 - Lifetime
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/12—Respiratory apparatus with fresh-air hose
Definitions
- a common feature of these devices is that breathing gas is supplied to the space delimited by the mask or hood. If a fault should occur so that the supply of breathing gas ceases or becomes insufficient, for instance as a result of a mechanical fault in the equipment or because the supply of breathing gas has been exhausted, no fresh gas will be supplied to the wearer of the equipment. As a result, the carbon dioxide content of the available breathing air will build-up while the oxygen content diminishes at the same time, which can quickly lead to suffocation.
- Fig. 1 illustrates a so-called escape hood 1 which is connected to a breathing gas container (not shown) by means of a conduit 2.
- a hood of this kind can be used temporarily, for instance, to protect against smoke and gases in an emergency, for instance in the case of fire, gas leakages from gas pipes, or in toxic gas environments created by chemicals.
- valve plate 8 If the pressure in the conduit 2 falls beneath a predetermined value, the valve plate 8 will be moved away from the edges of the opening 6 in response to the force exerted by a pressure spring 11 mounted around the opening. This movement of the plate 8 is enabled by a flexible diaphragm 12 of the so-called roll diaphragm type fitted to the housing 10.
Description
Claims (8)
- Breathing equipment including a breathing mask, breathing hood (1) or the like, and a conduit (2) for supplying breathing gas to the mask or hood, characterized by a valve means (4) which is normally closed in use and which when open connects the interior space of the mask or hood (1) with the surrounding atmosphere to enable said atmosphere to be breathed; and by means (8, 11) for detecting when the supply of breathing gas to the mask or hood (1) has fallen beneath a given level and to open said valve means in accordance herewith.
- Breathing equipment according to Claim 1, characterized in that the valve means (4) is pressure controlled and constructed to open when the pressure in the breathing gas conduit (2) has fallen beneath a predetermined value.
- Breathing equipment according to Claim 2, characterized in that the valve means (4) includes a spring-loaded valve body (8) which is pressed into sealing abutment with a valve seat when the pressure in the breathing gas conduit (2) exceeds said value, but which is moved away from the valve seat by the force of said spring when the pressure falls beneath said value.
- Breathing equipment according to Claim 3, characterized in that the valve body has the form of a spring-loaded valve plate (8) which is actuated by the pressure of the breathing gas.
- Breathing equipment according to Claim 4, characterized in that the valve plate (8) is housed in a housing (10) intended to be fitted over an opening (6) in the mask or hood (1); in that the housing includes a chamber (9) which communicates with the breathing gas conduit (2) and one wall of which is formed completely or partially by said plate (8); in that the plate functions to close the opening (6) when the pressure prevailing in the chamber (9) is sufficient to this end; and in that passageways (13) are provided for connecting the interior of the mask or hood with the surrounding atmosphere when the plate is moved away from the opening.
- Breathing equipment according to Claim 5, characterized in that the flow of breathing gas is caused to pass through the chamber (9) before being delivered to the mask or the hood (1).
- Breathing equipment according to Claim 5 or Claim 6, characterized in that the plate (8) is sealingly mounted in the housing (10) with the aid of a flexible diaphragm (12).
- Breathing equipment according to any one of Claims 1-7, characterized by filter means provided in the passageway between the valve means and the surrounding atmosphere.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9502439A SE511288C2 (en) | 1995-07-05 | 1995-07-05 | Breathing equipment that automatically opens to the outside air in case of failure |
SE9502439 | 1995-07-05 | ||
PCT/SE1996/000852 WO1997002070A1 (en) | 1995-07-05 | 1996-06-27 | Breathing equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0956100A1 EP0956100A1 (en) | 1999-11-17 |
EP0956100B1 true EP0956100B1 (en) | 2002-08-28 |
Family
ID=20398858
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96923136A Expired - Lifetime EP0956100B1 (en) | 1995-07-05 | 1996-06-27 | Breathing equipment |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0956100B1 (en) |
AU (1) | AU711329B2 (en) |
CA (1) | CA2226099A1 (en) |
DE (1) | DE69623353T2 (en) |
SE (1) | SE511288C2 (en) |
WO (1) | WO1997002070A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9844362B2 (en) | 2015-01-13 | 2017-12-19 | Covidien Lp | Exchangeable core biopsy needle |
CN106955431B (en) * | 2017-05-29 | 2022-08-30 | 东台市江海救生消防设备有限公司 | Emergency escape respirator |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR796977A (en) * | 1935-10-22 | 1936-04-18 | Improvements to gas protection devices | |
DE913260C (en) * | 1941-09-04 | 1954-06-10 | Draegerwerk Ag | Retraction signal device for oxygen and compressed air breathing apparatus |
US5385141A (en) * | 1992-04-16 | 1995-01-31 | Siebe North, Inc. | Speech diaphragm and exhalation valve |
GB9226054D0 (en) * | 1992-12-14 | 1993-02-10 | Middlemace Ltd | Flow indicator |
SE504000C2 (en) * | 1995-02-20 | 1996-10-14 | Comasec International Sa | Face mask for gas breathing from storage or the surrounding atmosphere |
-
1995
- 1995-07-05 SE SE9502439A patent/SE511288C2/en unknown
-
1996
- 1996-06-27 AU AU63728/96A patent/AU711329B2/en not_active Ceased
- 1996-06-27 DE DE69623353T patent/DE69623353T2/en not_active Expired - Fee Related
- 1996-06-27 EP EP96923136A patent/EP0956100B1/en not_active Expired - Lifetime
- 1996-06-27 WO PCT/SE1996/000852 patent/WO1997002070A1/en active IP Right Grant
- 1996-06-27 CA CA 2226099 patent/CA2226099A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP0956100A1 (en) | 1999-11-17 |
WO1997002070A1 (en) | 1997-01-23 |
DE69623353D1 (en) | 2002-10-02 |
AU711329B2 (en) | 1999-10-14 |
SE511288C2 (en) | 1999-09-06 |
SE9502439D0 (en) | 1995-07-05 |
DE69623353T2 (en) | 2003-04-17 |
CA2226099A1 (en) | 1997-01-23 |
AU6372896A (en) | 1997-02-05 |
SE9502439L (en) | 1997-01-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1786523B1 (en) | Apparatus for providing breathable air and bodily protection in a contaminated environment | |
US6016802A (en) | Breathing apparatus and facepiece therefor | |
US4674492A (en) | Alarm system for respirator apparatus and method of use | |
RU2183485C2 (en) | Autonomous respirator device having smoke protection filter and method for using it | |
US20060048777A1 (en) | Apparatus and method for providing breathable air and bodily protection in a contaminated environment | |
RU2169595C2 (en) | Method (versions) and apparatus for preventing from smoke inhalation at emergency situations | |
US5309901A (en) | Individual protective equipment including a pressure suit and a self-contained breathing apparatus | |
JP5058968B2 (en) | Portable air purification system using sealed filter | |
US20050022817A1 (en) | Breathing apparatus | |
EP1341582B1 (en) | Breathing apparatus | |
JPS61222462A (en) | Respiration protecting mask | |
JP2008535570A (en) | Combined air supply / air purification system | |
US5803076A (en) | Vacuum adherent face mask | |
JPS58500393A (en) | Lifesaving systems and methods of supplying fresh air to confined spaces | |
EP0363530A1 (en) | Respirator | |
US11771927B2 (en) | Rebreathing apparatus having inhaled oxygen mixing and exhaled carbon dioxide removal functions by electronic control | |
EP0956100B1 (en) | Breathing equipment | |
GB2191950A (en) | Emergency escape breathing apparatus | |
GB2189707A (en) | Emergency escape breathing apparatus | |
CN106730455A (en) | Gasbag-type smog repeats filtering breathing equipment | |
EP0632736B1 (en) | Breathing apparatus for respiratory protection | |
CN215841292U (en) | Convenient and reliable fire-fighting self-rescuer | |
GB2383397A (en) | Recharging valve for a breathing apparatus | |
CA2893287C (en) | Improved protective breathing apparatus inhalation duct | |
CN111632294B (en) | Mask with air bypass valve and air supply breathing device using same |
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: 19980124 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT SE |
|
17Q | First examination report despatched |
Effective date: 20000829 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
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 IT SE |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: INTERSPIRO EUROPE AB |
|
RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: INTERSPIRO AB |
|
REF | Corresponds to: |
Ref document number: 69623353 Country of ref document: DE Date of ref document: 20021002 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20021128 |
|
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 |
Effective date: 20030530 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20090622 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20090624 Year of fee payment: 14 Ref country code: DE Payment date: 20090626 Year of fee payment: 14 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20100627 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20110228 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100627 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110101 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100630 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20100627 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20090611 Year of fee payment: 14 |