GB2211424A - Emergency breathing apparatus - Google Patents
Emergency breathing apparatus Download PDFInfo
- Publication number
- GB2211424A GB2211424A GB8811172A GB8811172A GB2211424A GB 2211424 A GB2211424 A GB 2211424A GB 8811172 A GB8811172 A GB 8811172A GB 8811172 A GB8811172 A GB 8811172A GB 2211424 A GB2211424 A GB 2211424A
- Authority
- GB
- United Kingdom
- Prior art keywords
- air
- mask
- air bag
- tube
- air inlet
- 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.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
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 mask (2) is connected with two air tubes (3,4) and an air bag (1) for providing a temporary supply of fresh air for avoiding the inhalation of gas or smoke. The air bag (1) has a reopenable seal (11) through which air (1) is waved into the air bag. One of the air tubes is an air inlet tube (3) and one is an air outlet tube (4), each tube being provided with a one- way valve. <IMAGE>
Description
ElrlERGENCY BREATHING APPARAIIS The present invention provides breathing apparatus which comprises a mask, an air tube and an air bag. By means of this device, people in lifethreatening situations due to fire may utilize fresh air contained in the air bag so that they would have enough time to leave the scene of the fire.
Conventional life savers are all designed to expedite people's movement from the fire scene to a safe place, such as in the case in which people from a high building are rescued by hydraulic fire ladders or the case where a fire escape is constructed of or surrounded by protective materials to keep it from being burned down. However, in a fire, not only the fire threatens the life of people but also the dense smoke generated from the fire is also a very harmful factor. Conventional life savers do not protect people from the threat of dense smoke.
Reference is now made to the accompanying drawings, wherein:
FIG. 1 is a perspective view in accordance with the present invention
FIG. 2 is a cross-sectional view in accordance with the present invention
FIG. 3 is a cross-sectional view taken along 3-3 of FIG. 2;
FIGs. 4 and 5 are perspective views partially showing a mask in accordance with the present invention; and
FIG. 6 shows the fire escape device in accordance with the present invention being used by a user.
Referring to FIGs. 1 and 2, the present invention comprises a hollow air bag 1, a mask 2 an air inlet tube 3 and a air outlet tube 4. One side of the air pouch 1 is provided with a sealing strip 11. When the sealing strip 11 is pressed and closed, the air in the air pouch can not leak out. The upper end of the air pouch 1 is provided with-a square, rigid reinforcement member 12. The reinforcement member 12 is provided with two concave holes 13, each hole 13 being connected with a pull plug 15. With the plugs 15, the holes 13 may be closed. A thin plastic flap 14 is mounted at the bottom of the hole 13 to act as a check valve.
Both sides of the air bag 1 may be provided with a strap (not shown) for securing to the user's body. The mask 2 is large enough for covering the user's mouth and noset as shown in FIGs. 4 and 5. The mask 2 is also provided with an air inlet 22 and an air outlet 21. Both sides of the mask 2 are provided with an elastic band 23 which can be secured on the user's ears. The air inlet tube 3 and air outlet tube 4 each have a respective movable thin plastic flap 31, 41 disposed therein (as shown in FIG. 3) to form a check valve so that the air inlet tube 3 is only movable from the air bag 1 to the mask 2. The air in the air outlet tube 4 is only movable from the mask 2 to the air bag 1.
If there is a fire, the people who have not escaped from the fire scene may open the air bag 1 in order to prevent themselves from inhaling smoke or gas and being asphyxiated. When the air bag 1 is opened, it is necessary to wave the air bag 1 around in order to fill the air bag 1 air without smoke or gas. Then the sealing strip 11 is pressed and the air bag 1 is closed. The upper end of the air inlet tube 3 is connected to the bottom end of air inlet 22, the lower end of the air inlet tube 3 is connected to the hole 13. Further, the upper end of the air outlet tube 4 is connected to the air outlet 21 and the lower end of the air outlet tube 4 is connected to the further hole 13.
Finally, the mask 2 is placed over the nose and mouth of a user (as shown in FIG. 6). Since the user has further fresh air contained in the air bag 1, he has time to leave the scene of the fire. In the use of the present invention, the air tube 4 may optionally be exhausted to the surrounding environment, but of course this would shorten the amount of time the air pouch could be used. If the air in the air bag 1 has been inhaled and exhausted, the user may remove the air pouch 1 and only use the mask 2 and air inlet tube 3 and air outlet tube 4 by putting the air inlet and outlet tubes 3, 4 near the ground. Based upon the theory that the smoke and hot vapors rise, the user may inhale the fresh air near the ground from the air inlet tube 3, thus avoiding being smothered by the smoke.
The thin plastic flaps 31, 41 acted as check valves may also be installed in the mask 2 or air pouch 1 at either of concave holes 13 for the various styles in use.
The consumption of the air for an average adult user per minute is calculated as 12 (No. of breaths / min.) x 0.51 liter (Breathing volume) x 5.148 (Oxygen consumption quantity = oxygen inhaled - oxygen exhaled) / 20.84% (Oxygen in inhalation). Hence the oxygen consumption quantity is about 1.481. If the air bag 1 is filled with 30 liters of air, then the oxygen is provided to the user for about 20 minutes so that the escaping person using it should have the sufficient time to leave the scene of the fire.
Claims (2)
1. Emergency breathing apparatus ccmprising: an air bag 1 having a sealing strip 11 at a side
thereof, a reinforcement member 12 with two
concave holes 13 at an upper surface thereof,
each of said concave holes 13 being provided
with a respective thin to 31, 41 form a check
valve;
a mask 2 having an air outlet 21 and an air inlet 22r an air inlet tube 3 connected between one
hole of said air bag and said air inlet 22 of
said mask 2; and
an air outlet tube 4 connected between an other
hole 13 of said air bag 1 and said air outlet 21
of said mask 2.
2. Breathing apparatus ' substantially as hereinbefore
described with reference to and as shown in Figs. 1 to
6 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987161478U JPH0169552U (en) | 1987-10-23 | 1987-10-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8811172D0 GB8811172D0 (en) | 1988-06-15 |
| GB2211424A true GB2211424A (en) | 1989-07-05 |
Family
ID=15735854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8811172A Withdrawn GB2211424A (en) | 1987-10-23 | 1988-05-11 | Emergency breathing apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0169552U (en) |
| GB (1) | GB2211424A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0466960A1 (en) * | 1987-03-10 | 1992-01-22 | Ignatius E. Theodorou | Portable breathing device |
| WO1994002206A1 (en) * | 1992-07-21 | 1994-02-03 | Shell Internationale Research Maatschappij B.V. | Breathing device |
| NL1030574C2 (en) * | 2005-12-02 | 2007-06-05 | Jan Paul Van Geuns | Respiratory device for use in event of fire, comprises inflatable bag with mouthpiece containing check valve |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5185414B2 (en) * | 2011-07-04 | 2013-04-17 | 和重 興津 | "Breath breath breath" |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB371278A (en) * | 1931-10-01 | 1932-04-21 | Robert Henry Davis | Improvements in or relating to breathing appliances |
-
1987
- 1987-10-23 JP JP1987161478U patent/JPH0169552U/ja active Pending
-
1988
- 1988-05-11 GB GB8811172A patent/GB2211424A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB371278A (en) * | 1931-10-01 | 1932-04-21 | Robert Henry Davis | Improvements in or relating to breathing appliances |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0466960A1 (en) * | 1987-03-10 | 1992-01-22 | Ignatius E. Theodorou | Portable breathing device |
| WO1994002206A1 (en) * | 1992-07-21 | 1994-02-03 | Shell Internationale Research Maatschappij B.V. | Breathing device |
| AU669730B2 (en) * | 1992-07-21 | 1996-06-20 | Shell Internationale Research Maatschappij B.V. | Breathing device |
| SG86972A1 (en) * | 1992-07-21 | 2002-03-19 | Shell Int Research | Breathing device |
| NL1030574C2 (en) * | 2005-12-02 | 2007-06-05 | Jan Paul Van Geuns | Respiratory device for use in event of fire, comprises inflatable bag with mouthpiece containing check valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0169552U (en) | 1989-05-09 |
| GB8811172D0 (en) | 1988-06-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |