GB2255509A - Respiratory apparatus for the emergency supply of oxygen to passengers in an aircraft - Google Patents
Respiratory apparatus for the emergency supply of oxygen to passengers in an aircraft Download PDFInfo
- Publication number
- GB2255509A GB2255509A GB9209504A GB9209504A GB2255509A GB 2255509 A GB2255509 A GB 2255509A GB 9209504 A GB9209504 A GB 9209504A GB 9209504 A GB9209504 A GB 9209504A GB 2255509 A GB2255509 A GB 2255509A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxygen generator
- respiratory apparatus
- holder
- state
- oxygen
- 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.)
- Granted
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims description 117
- 239000001301 oxygen Substances 0.000 title claims description 117
- 229910052760 oxygen Inorganic materials 0.000 title claims description 117
- 230000000241 respiratory effect Effects 0.000 title claims description 25
- 238000009434 installation Methods 0.000 claims description 31
- 230000004913 activation Effects 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 230000000977 initiatory effect Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- -1 alkali metal chlorate Chemical class 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- XTEGARKTQYYJKE-UHFFFAOYSA-M chlorate Inorganic materials [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/08—Respiratory apparatus containing chemicals producing oxygen
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B25/00—Devices for storing or holding or carrying respiratory or breathing apparatus
- A62B25/005—Devices for storing or holding or carrying respiratory or breathing apparatus for high altitude
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/14—Respiratory apparatus for high-altitude aircraft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D2231/00—Emergency oxygen systems
- B64D2231/02—Supply or distribution systems
- B64D2231/025—Oxygen masks; Mask storages; Features related to mask deployment
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Emergency Medicine (AREA)
- General Chemical & Material Sciences (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Description
2255509 RESPIRATORY APPARATUS FOR THE EMERGENCY SUPPLY OF OXYGEN TO
PASSENGERS IN AN AIRCRAFT This invention relates to a respiratory apparatus for the emergency supply of oxygen to passengers in an aircraft, comprising an installation container which can be closed by a cover and which can be fastened above the seats of the aircraft, which container accommodates at least one oxygen mask and in which container there is arranged an exothermic chemical oxygen generator which is connected to the oxygen mask and which is held in a holder able to change the state of the oxygen generator from a stand- by state to an operating state in which latter state the distance between the oxygen generator and the inner wall of the installation container is increased.
In certain cases of emergency in aircraft it is necessary to enrich the inhaled air with oxygen. This can be required in an atmosphere with a reduced oxygen partial pressure, for example after a pressure drop in the cabin at a great height, in order to increase the inhaled gas to an oxygen level which will enable the user to survive. In passenger aircraft, therefore, for the emergency supply of oxygen, oxygen masks connected to chemical oxygen generators are fitted in installation containers, which can be closed by a cover, over the seats of the passengers. The chemical oxygen generators generally contain a mixture of alkali metal chlorate, which, upon activation, releases oxygen by an exothermic reaction, which can be inhaled by way of the oxygen mask.
The quantity of oxygen to be supplied and thus the size of the chemical oxygen generator depends on the duration of use required. Particularly in the case of an extended descent from a great height, a so-called longrange system is required, in which the chemical oxygen generators must have a longer period of operation, i.e. of up to 22 minutes.
-During the course of the exothermic reaction in the chemical oxygen generator, a considerable quantity of heat arises, which heats the outer wall of the generator housing to approximately 280C. Since the installation containers are generally installed underneath the overhead rack, in use the temperature of the installation container must not exceed a specified level, in order not to endanger the functioning of the surrounding components. Since, moreover, only a limited installation space is available for the installation container, the heat insulation required cannot generally be accommodated within the installation container.
In the apparatus according to US-A-4766893, the oxygen generator is arranged on the cover of the installation container, which cover can be opened thereby leading in the operating state to an increased removal of heat. The cover fastening of the oxygen generator, however, presents various disadvantages; in particular, because of the considerable weight of the oxygen generator, the cover must be provided with a relatively stable, and therefore heavy, cover mounting, for which, moreover, for the free fall of the oxygen masks, a pivot region with an angle of 100 degrees is prescribed. These preconditions cause the application of-the oxygen generator to the cover to be unsuitable in certain cases of use.
An installation container with a securely installed oxygen generator, in which the heat emission takes place directly to the installation container, is known from DE-U-8611223.
The object of the present invention is to improve a respiratory apparatus having a holding means for an oxygen generator in such a way that, with sufficient removal of the heat of the oxygen generator to the environment, the free mobility of the cover which closes the installation container is not impeded by the oxygen generator.
The object of the invention is achieved in that the holder is securely fitted to the installation container in such a way that in operation it allows the oxygen generator to change its state by means of pivoting. Such a holder is referred to herein as a 11pivotal holder".
The advantage of the invention arises from the fact that, by means of the application of the pivotal holder of the oxygen generator to the installation container, the cover is released and it can therefore freely carry out the prescribed pivot. Moreover, the emission of heat from the oxygen generator to the cover is clearly reduced.
In an advantageous embodiment, the activation device of the oxygen generator can be coupled to the pivotal holder of the oxygen generator in such a way that, when the cover is opened, the oxygen generator is moved from the stand-by state into the operating state only upon activation. In this case, the movement of the oxygen generator in its pivotal holder is prevented until the activation of the exothermic chemical reaction takes place.
In another advantageous embodiment, for the initiation of the movement of the oxygen generator from the stand-by state into the operating state, a temperature-controllable initiating device, preferably a bimetallic device, can be provided. The range of movement of the oxygen generator is advantageously limited in the operating state by a fixed stop or by a notch device.
In an embodiment which has been tested in practice, the oxygen generator has a strike bolt under initial spring tension, and a locking pin is provided in the strike bolt such that, upon withdrawal of the locking pin, the strike bolt is released for activating the oxygen generator, whereby at the same time the pivotal holder of the oxygen generator is released and the oxygen generator pivots from the stand-by state into the operating state under the action of gravity.
The pivotal movement of the oxygen generator can be effected by, for example, a prestressed spring.
The oxygen generator is advantageously accommodated in a cartridge-like. closed housing.
By the invention, there is provided a respiratory apparatus wherein the oxygen generator in the operating state has efficient insulation which is adequate for long-range operation, with the result that the overheating of installed components is avoided.
The object of the present invention is also achieved in that the holder is a pivoting holder which is fastened to the oxygen generator such that the pivoting holder, and the oxygen generator, can pivot from the stand-by state to the operating state.
Thus, the object of the present invention is achieved in that the holder is a hinge holder which is fastened to the oxygen generator and pivots the oxygen generator about a stationary axis on the installation container between the stand-by state and the operating state.
The difference between the pivoting holder and the pivotal holder is that, in the case of the pivoting holder, by means of the connection of the oxygen generator to a stationary axis on the installation container, the inherent weight of the oxygen generator is predominantly transferred by way of.the body surface (such as, for example,' the casing surface of the oxygen generator) to the floor of the installation container.
In this way, the (shock-sensitive) activation device with the strike bolt, which in the pivotal holder 1 serves to support the oxygen generator, is released.
Advantageously, the pivoting holder comprises cartridge holders, fastened by means of tightening clamps to the casing surface of the oxygen generator, which cartridge holders are rotatably accommodated by way of axes in cartridge bearings. The cartridge bearings are securely fitted to the bottom of the installation container. The pivot movement of the oxygen generator therefore takes place about the axes of the cartridge bearings as point of rotation.
To stop the oxygen generator in the stand-by state the tightening clamps of the pivoting holder can be provided with projections, which can be earshaped or toroidal.
In an advantageous embodiment the activation device of the oxygen generator is coupled by way of a shackle to the pivoting holder in such a way that, upon activation of the oxygen generator, the shackle releases the pivoting holder, whereby the oxygen generator is moved from the stand-by state into the operating state. The shackle holds the oxygen generator in the stand-by state and is blocked by the strike bolt of the activation device.
The shackle is advantageously accommodated in an axially rotatable manner in shackle bearings and has bent portions which engage into the projections of the tightening clamps. By means of the engagement of the bent portions into the associated projections of the tightening clamps, the oxygen generator is held in the stand-by state. The shackle bearings can be constructed as bored plate folds which are formed in the installation container, in the slot of which the shackle is inserted. However, slotted screws or nuts have also proven to be advantageous.
It is advantageous to provide the pivoting holder with a notched device which limits the range of movement of the oxygen generator in the operating state. The notched device is advantageously such that reductions are provided at the axes of the cartridge bearings, which engage into correspondingly formed slots in the cartridge holders, when the oxygen generator is pivoted into the operating state. Wedgeshaped reductions which engage into slots which are likewise constructed so as to be wedge-shaped, have proven to be particularly advantageous.
The invention will now be described, by way of example, with reference to the drawings in which:
Figure 1 shows a side view of an apparatus of the invention; Figure 2 shows a view from below, with the cover removed, of the apparatus of Figure 1; Figure 3 shows a sectioned partial view of the apparatus of Figure 1; Figure 4 shows another apparatus of the invention in a view similar to that of Figure 2; Figure 5 shows a side view of the apparatus of Figure 4 in the stand-by state; and Figure 6 shows a side view of the apparatus of Figure 5 in the operating state.
Figures 1, 2 and 3 show an installation container 1 which is closed in the stand-by state by a cover 2. A cartridge-like chemical oxygen generator 3 is mounted in the installation container 1, on lateral brackets 4 and 5 in such a way that it can pivot out of the container 1. The broken lines represent the installation container with the cover closed, wherein the oxygen generator 3 is located in the stand-by state. The solid lines show the oxygen generator 3 in its pivoted-out position, i.e. in its operating state, with the cover 2 open.
In the free interior of the installation container 1, there are accommodated generally three or four oxygen masks (not shown). Pivot bolts 11 are fitted to the end faces of the cartridge-like oxygen generator 3, which bolts engage into bores of the brackets 4 and 5, so that the cartridge-like oxygen generator 3 moves about the pivot bolts 11 from the stand-by state into the operating state. In this respect, tube casings 6 and 7 slide in arched guide recesses 8 and 9 of the brackets 4 and 5. The brackets 4 and 5 are provided with circular punched-out sections 10 to save weight.
To effect the pivotal movement of the oxygen generator 3, a wire spring 12 is provided around one of the pivot bolts 11, which wire spring bears, under stress, against the tube casing 6 in the stand-by state of the oxygen generator 3.
In the path of movement of the tube casings 6 and 7, there is located an elastic tongue 13, which narrows the guide path of the tube casings 6 and 7 and thereby brakes the pivotal movement of the oxygen generator 3 that occurs under the influence of gravity, when the cover 2 is open, along the arched guide recesses 8 and 9, and stops the tube casings 6 and 7 in their end position, i.e. in the operating state.
Figure 4 shows, in a view similar to that of Figure 2, an alternative embodiment for achieving the pivotal movement of the oxygen generator 3, this embodiment having a pivoting holder 30. The same components are denoted by the same reference numbers, in Figures 1 to 3. Compared with Figure 2, the strike bolt 15 is arranged on the opposite side of the oxygen generator 3. Also, compared with the construction according to Figure 2, the pivoting of the oxygen generator 3 is no longer effected by means of the tube casings 6 and 7 and the brackets 4 and 5 acting as a pivotal holder. Instead, the pivoting holder 30 is used to hold the outer casing surface 31 of the oxygen generator 3. The pivoting holder 30 is constructed symmetrically to the oxygen generator 3 and consists of (a) a first cartridge holder 32 which is securely clamped by a first tightening clamp 33 to the outer casing surface 31 of the oxygen generator 3, (b) a second cartridge holder 34 which is fastened by a second tightening clamp 35 in the same manner as the first cartridge holder 32 to the outer casing surface 31, (c) a first cartridge bearing 36 in which the first cartridge holder 32 is rotatably mounted along a first axis 38, and (d) a second cartridge bearing 37 in which the second cartridge holder 34 is rotatably mounted along a second axis 39.
In the stand-by state shown in Figure 4, the oxygen generator 3 lies parallel to the rear face 40 of the installation container 1. Also parallel to the rear face 40, there extends a shackle 41, which is mounted in an axially rotatable manner in a first shackle bearing 42 and a second shackle bearing 43, and which has, in the region of the shackle bearings 42 and 43, a first shackle bend 44 and a second shackle bend 45, which extend towards the oxygen generator 3.
The-shackle bends 44 and 45 are adjacent to the tightening clamps 33 and 35, and the tightening clamps 33 and 35 are provided with a first projection 46 and a second projection 47, respectively, which engage under the shackle bends 44 and 45 and in this way hold the oxygen generator 3 in the stand-by state. The shackle 41 is held by the strike bolt 15 in the position shown in Figure 4. The projections 46 and 47 can advantageously be integral with the tightening clamps 33 and 35 to form so-called "ear clamps". Advantageous embodiments of the shackle bearings 42 and 43 are bored plate folds (which are formed directly in the installation container 1), or slotted screws or nuts.
The transition of the oxygen generator 3 from the stand-by state into the operating state is effected by 1 pulling the locking pin 18 by the cord 19 so that the strike bolt 15 is released along the direction of arrow 48 whereby the shackle 41 is released from its locking position by the strike bolt 15. Thus, the shackle 41 is unlocked by virtue of the fact that the projections 46 and 47 disengage from the shackle bends 44 and 45 whereby the oxygen generator 3 pivots about the axes 38 and 39 from the stand-by state into the operating state.
The transition from the stand-by state into the operating state is illustrated schematically in Figures 5 and 6. The same components are denoted by the same reference numbers, in Figures 4, 5 and 6.
Figure 5 shows a side view of the pivoting holder 30 in section, with the strike bolt 15 in the stand-by state of the oxygen generator 3. For better clarity, the installation container 1 is only partially drawn. The shackle 41 is held, by the projecting strike bolt 15, in its locked position, and the second projection 47 of the second tightening clamp 35 is held by the second shackle bend 45. In the operating state, the range of movement of the oxygen generator 3 is limited by a notched device 49. The notched device 49 comprises wedge-shaped reductions 50 at the axes 38 and 39 and correspondingly constructed slots 51 in the cartridge holders 32 and 34. in Figure 5, only the second cartridge holder 34 and the second axis 39 are shown.
Figure 6 shows the oxygen generator 3 according to Figure 5 in the operating state.
In the pivoted-out vertical position of the oxygen generator 3 the reductions 50 of the notched device 49 lie in a locked manner in the slots 51 and thus hold the oxygen generator 3 in the operating state.
Claims (18)
1. A respiratory apparatus for the emergency supply of oxygen to a passenger in an aircraft, comprising an installation container which can be closed by a cover and which can be fastened above the seats of the aircraft, which container accommodates at least one oxygen mask and in which container there is arranged an exothermic chemical oxygen generator which is connected to the oxygen mask and which is held in a holder able to change the state of the oxygen generator from a stand-by state to an operating state in which latter state the distance between the oxygen generator and the inner wall of the installation container is increased, the holder being fitted to the installation container in such a way that in operation it allows the oxygen generator to change its state by means of pivoting.
2. A respiratory apparatus according to claim 1, wherein the oxygen generator has an activation device which, with the cover open, is coupled to the holder of the oxygen generator in such a way that the oxygen generator is moved from the stand-by state into the operating state only upon activation of the activation device. 25
3. A respiratory apparatus according to claim 2, wherein a pivotal holder is provided to hold the oxygen generator.
4. A respiratory apparatus according to claim 3, wherein the pivotal holder has a pivot-spring mechanism.
5. A respiratory apparatus according to any of claims 1 to 4, comprising a temperature-controllable initiating device to initiate the movement of the oxygen generator from the stand-by state into the operating state.
6. A respiratory apparatus according to claim 5, wherein the temperature-controllable initiating device is a bimetallic device.
7. A respiratory apparatus according to any of claims 1 to 6, comprising a stop means for limiting the range of movement of the oxygen generator in the operating state.
8. A respiratory apparatus according to claim 7, wherein the oxygen generator can be stopped in the operating state by means of a notched device.
9. A respiratory apparatus according to claim 2 or 3, wherein the activation device of the oxygen generator comprises a strike bolt which is under initial spring tension, and wherein a locking pin engages into the strike bolt in such a way that upon withdrawal of the locking pin the strike bolt is released for the activation of the oxygen generator, whereupon the holder is released so that the oxygen generator pivots from the stand-by state into the operating state under the action of gravity.
10. A respiratory apparatus according to claim 9, wherein the movement of the oxygen generator is able to be effected by a prestressed spring.
11. A respiratory apparatus according to any of claims 1 to 10, wherein the oxygen generator is accommodated in a cartridge-like housing.
12. A respiratory apparatus according to claim 1, wherein the holder is a pivoting holder fastened to the oxygen generator and able to pivot the oxygen generator about a stationary axis of the installation container between the stand-by state and the operating state.
13. A respiratory apparatus according to claim 12, wherein the pivoting holder comprises cartridge holders fastened to the oxygen generator by means of tightening clamps, which cartridge holders are rotatably accommodated, around respective axes, in cartridge bearings on the installation container.
14. A respiratory apparatus according to claim 13, wherein the tightening clamps have projections for holding the oxygen generator in the stand-by state.
15. A respiratory apparatus according to any of claims 12 to 14, wherein the activation device of the oxygen generator is coupled by a shackle to the pivoting holder in such a way that upon activation of the oxygen generator the shackle releases the pivoting holder, whereupon the oxygen generator is moved from the stand-by state into the operating state.
16. A respiratory apparatus according to claim 15, wherein that the shackle is accommodated in an axially rotatable manner in shackle bearings and has bent portions which engage into the projections to hold the oxygen generator.
17. A respiratory apparatus according to any of claims 12 to 16, wherein the pivoting holder has a notched device which limits the range of movement of the oxygen generator in the operating state.
18. A respiratory apparatus according to claim 1, substantially as hereinbefore described with reference to, and as shown in, Figures 4, 5 and 6.
18. A respiratory apparatus according to claim 17, wherein the notched device has reductions on the axes, and wherein correspondingly constructed slots are provided in the cartridge holders.
17. A respiratory apparatus according to claim 1, substantially as hereinbefore described with reference to, and as shown in, Figures 1, 2 and 3.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4115361 | 1991-05-10 | ||
| DE4204532A DE4204532A1 (en) | 1991-05-10 | 1992-02-15 | BREATHING DEVICE FOR THE EMERGENCY OXYGEN SUPPLY OF PASSENGERS IN AIRCRAFT |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9209504D0 GB9209504D0 (en) | 1992-06-17 |
| GB2255509A true GB2255509A (en) | 1992-11-11 |
| GB2255509B GB2255509B (en) | 1994-11-02 |
Family
ID=25903542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9209504A Expired - Fee Related GB2255509B (en) | 1991-05-10 | 1992-05-01 | Respiratory apparatus for the emergency supply of oxygen to passengers in an aircraft |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE4204532A1 (en) |
| FR (1) | FR2676174B1 (en) |
| GB (1) | GB2255509B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6089230A (en) * | 1998-11-03 | 2000-07-18 | Be Aerospace Intellectual Property, Inc. | Aircraft passenger oxygen delivery unit having shiftable oxygen generating candle |
| US6497387B2 (en) * | 2000-08-17 | 2002-12-24 | Intertechnique | Breathing masks box for emergency equipment |
| WO2013180994A1 (en) * | 2012-05-30 | 2013-12-05 | B/E Aerospace, Inc. | Hybrid on-board generation of oxygen for aircraft passengers |
| US9120571B2 (en) | 2012-05-25 | 2015-09-01 | B/E Aerospace, Inc. | Hybrid on-board generation of oxygen for aircraft passengers |
| US9550570B2 (en) | 2012-05-25 | 2017-01-24 | B/E Aerospace, Inc. | On-board generation of oxygen for aircraft passengers |
| US9550575B2 (en) | 2012-05-25 | 2017-01-24 | B/E Aerospace, Inc. | On-board generation of oxygen for aircraft pilots |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2111837A (en) * | 1981-06-04 | 1983-07-13 | Keiper Recaro Gmbh Co | Oxygen supply unit for an aircraft occupant |
| US4766893A (en) * | 1986-04-24 | 1988-08-30 | Dragerwerk Aktiengesellschaft | Emergency oxygen supply unit with a respirator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8611223U1 (en) * | 1986-04-24 | 1987-08-06 | Drägerwerk AG, 23558 Lübeck | Rescue device in the aircraft |
-
1992
- 1992-02-15 DE DE4204532A patent/DE4204532A1/en active Granted
- 1992-05-01 GB GB9209504A patent/GB2255509B/en not_active Expired - Fee Related
- 1992-05-07 FR FR9205834A patent/FR2676174B1/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2111837A (en) * | 1981-06-04 | 1983-07-13 | Keiper Recaro Gmbh Co | Oxygen supply unit for an aircraft occupant |
| US4766893A (en) * | 1986-04-24 | 1988-08-30 | Dragerwerk Aktiengesellschaft | Emergency oxygen supply unit with a respirator |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6089230A (en) * | 1998-11-03 | 2000-07-18 | Be Aerospace Intellectual Property, Inc. | Aircraft passenger oxygen delivery unit having shiftable oxygen generating candle |
| US6497387B2 (en) * | 2000-08-17 | 2002-12-24 | Intertechnique | Breathing masks box for emergency equipment |
| US9120571B2 (en) | 2012-05-25 | 2015-09-01 | B/E Aerospace, Inc. | Hybrid on-board generation of oxygen for aircraft passengers |
| US9550570B2 (en) | 2012-05-25 | 2017-01-24 | B/E Aerospace, Inc. | On-board generation of oxygen for aircraft passengers |
| US9550575B2 (en) | 2012-05-25 | 2017-01-24 | B/E Aerospace, Inc. | On-board generation of oxygen for aircraft pilots |
| US9580177B2 (en) | 2012-05-25 | 2017-02-28 | B/E Aerospace, Inc. | Hybrid on-board generation of oxygen for aircraft passengers |
| WO2013180994A1 (en) * | 2012-05-30 | 2013-12-05 | B/E Aerospace, Inc. | Hybrid on-board generation of oxygen for aircraft passengers |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2255509B (en) | 1994-11-02 |
| DE4204532C2 (en) | 1993-03-11 |
| FR2676174A1 (en) | 1992-11-13 |
| GB9209504D0 (en) | 1992-06-17 |
| FR2676174B1 (en) | 1993-11-12 |
| DE4204532A1 (en) | 1992-11-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20010501 |