CA1180629A - Respirator hood - Google Patents
Respirator hoodInfo
- Publication number
- CA1180629A CA1180629A CA000389883A CA389883A CA1180629A CA 1180629 A CA1180629 A CA 1180629A CA 000389883 A CA000389883 A CA 000389883A CA 389883 A CA389883 A CA 389883A CA 1180629 A CA1180629 A CA 1180629A
- Authority
- CA
- Canada
- Prior art keywords
- hood
- respirator
- wearer
- mask
- inner mask
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B17/00—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes
- A62B17/04—Hoods
Landscapes
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
This invention relates to a respirator hood for use as a fire escape device or the like which comprises an outer hood adapted to fit about the head of a wearer and having a wide neck opening through which the head of a wearer may be inserted with ease, an inner mask mounted within said hood and adapted to encircle the mouth and nose of the wearer in use, seal means disposed between the hood and inner mask and arranged to isolate an eye surrounding area of the hood from the neck opening, strapping means for securing the hood to the head of the wearer, retaining flap means projecting rearwardly from said inner mask on opposite sides thereof and being adapted to be secured to said strapping means whereby the strapping means may serve to secure the inner mask to the face of the wearer, and a viewing window in the outer hood.
This invention relates to a respirator hood for use as a fire escape device or the like which comprises an outer hood adapted to fit about the head of a wearer and having a wide neck opening through which the head of a wearer may be inserted with ease, an inner mask mounted within said hood and adapted to encircle the mouth and nose of the wearer in use, seal means disposed between the hood and inner mask and arranged to isolate an eye surrounding area of the hood from the neck opening, strapping means for securing the hood to the head of the wearer, retaining flap means projecting rearwardly from said inner mask on opposite sides thereof and being adapted to be secured to said strapping means whereby the strapping means may serve to secure the inner mask to the face of the wearer, and a viewing window in the outer hood.
Description
This invention relates to respirator hoods. In particular, this invention relates to a respirator hood to be worn by persons escaping from fire and smoke.
PRIOR ~RT
~t is well known that many deaths occur in fires in high-rise building and the li]ce as a result of poisoning from combustion gases and smoke. Smoke poisoning and poor visibility caused by thick, arrid smoke which is produced in many fires can cause more difficulty than the combustion flames. Previous attempts have been made to provide an escape-hood filter unit for use by persons Eleeing a fire. In these known units, the air inhaled is filtered in order to eliminate toxic combustion gases and other units provide protection for the eyes and head of the wearer.
In one known respirator hood which is used for fire escape purposes, the hood has a knitted collar adapted to fit the neck of the wearer. The collar is made of a resilient textile material and must be expanded in order to pull it over the head of the wearer. This makes the hood difficult to fit in the event of panic and also gives the wearer a constricted feeling since, - when the hood is fitted, the collar performs the function of a seal around the neck. According to this known design, the hood strapping which engages externally with the filter, presses the inner mask against the wearer's face. As a result of this structure, the seating of the inner mask on the face of the wearer is not positive and the mask may, therefore, be displaced while it is being worn. Furthermore, the sight-window in the hood is almost flat and this restricts the field of vision.
PRIOR ~RT
~t is well known that many deaths occur in fires in high-rise building and the li]ce as a result of poisoning from combustion gases and smoke. Smoke poisoning and poor visibility caused by thick, arrid smoke which is produced in many fires can cause more difficulty than the combustion flames. Previous attempts have been made to provide an escape-hood filter unit for use by persons Eleeing a fire. In these known units, the air inhaled is filtered in order to eliminate toxic combustion gases and other units provide protection for the eyes and head of the wearer.
In one known respirator hood which is used for fire escape purposes, the hood has a knitted collar adapted to fit the neck of the wearer. The collar is made of a resilient textile material and must be expanded in order to pull it over the head of the wearer. This makes the hood difficult to fit in the event of panic and also gives the wearer a constricted feeling since, - when the hood is fitted, the collar performs the function of a seal around the neck. According to this known design, the hood strapping which engages externally with the filter, presses the inner mask against the wearer's face. As a result of this structure, the seating of the inner mask on the face of the wearer is not positive and the mask may, therefore, be displaced while it is being worn. Furthermore, the sight-window in the hood is almost flat and this restricts the field of vision.
- 2 -The respirator hood which will be described hereinafter is constructed so as to be simple and easily fitted while providing a complete se~l for widely different shapes of head and face. The field of vision is also quite e~tensive as compared to known ~ designs of hoods.
According to one aspect of the present invention, a respirator hood comprlses a hood having a sight-window and adjust-able strapping and an external respirator filter. The hood has a wide neck opening designed to accommodate heads of different sizes.
When the neck opening is in the open configuration, it extends outwardly beyond the respirator filter. A seal is provided on each side of the hood between an inner mask and the inside of the hood for the purposes of sealing off the eye area from the neck opening.
The neck opening is open at its lower end and is in communication with ambient air~ Straps are provided which pass around the back of the head and are cor.nected to the hood for the purposes of securing the hood to the head of the wearer. Retaining flaps are formed in each side of the inner mask and merging from the body of the mask towards the temples. The flaps constitute points of application, recessed in relation to the varying surfaces, in the form of a bead, on the inner mask, for the strapping running around the outside of the hood. The sea~ is disposed below the strapping to serve as a seal line for the eye area.
The invention will be more clearly understood after reference to the following detailed specification read in conjunction with the drawings wherein:
Figure 1 is a side view of a respiratox hood;
Figure 2 is a front view of the respirator hood;
Figure 3 is a front view of the head of a person wearing a modified mask wi-thout the hood.
Figure 4 is a sectional view taken along the line A-B
of Figure l;
Figure 5 :is a section along t:he line ~-B o ri~ul-e 1 t~ithou-t the strapping; alld Figure 6 is a plan vie~ O r a bl~ suiLablc ior ~.se in forming the respirltor hood oE F:iclure 1.
The respirator hoocl illustrated in ~`i(,~lres 1 and 2 of the drawings consists of a flame-proof ancl heat-resistallt hood 1 ~ithin ~hich a viet~ing windot~ 2 is formed so as to be loc?ted in the field of vision of the t~earer. The vie~ing ~indow 2 is formed from a transparent foil material or ple~iglas, an inner mask in the form of a half-mas}; 3 is also provided. A breathing filter 4 is secured to the inner mask 3 and the hood 1 by means of a clamp 5, an exhaling valve 10 and strapping 6. The strappin~
6 consists of a tension-strap 6a and an endless strip 6b ~hicll passes around the back of the hood. The endless strip is secured to the hood at the point ~ (Figure 1) and is guided througil a loo~
Y. This arrangement has -the advalltage of s?reading the strapping and compensating for length for vrevelltillg the hood from slipping on the ~earer's head.
Arranged laterally upon t}le inller mas~ 3, appro~imately on a level ~ith the nostrils of a ~iearer, is a retainin~ flap 3~
(Figures ~l and 5) ~hich emerges from tnQ inller mask 3 and supports a buckle 7 located on the outside of the hood for receiving the stra?ping 6a. The strapping 6a is secured to the hood by ~uc~les 7 ~Jhich 2re fastened through the material of the hood 1 and -- 'I --the retaining flap 3a by means of screws or rivets 8.
The fact that the location at which the strapping 6a is secured to the hood is set back from the front of the hood, by reason of the position of the retaining flaps 3a of the inner mask, the hood can be correctly and stabley positioned on the user's face withou~ any slippage. Moreover, as a result of the special arrangement of ~he strapping and, in particular, the configuration of the blank used for the hood, the viewing window 2 which is sewn into the hood ac~uires a curved shaped when the hood is being worn. This eliminates the need for the usual curved frame to provide this curvature.
The inner mask 3 is formed with a bearing surface 3b in the form of a bead which presses against the face of the wearer when it is being used to act as a seal extending about the breathing area. This feature is illustrated in Figure 5 of the drawings.
Located on each side of the hood, between the inner mask 3 and the inside of the hood is a seal 9 which seals off the eye area from the neck opening in the hood which is open at its lower end and is in communication with the ambient air.
The seal 9 may either be in the form of lip integral with the body of the inner mask 3 or it may be provided in the form of a part made-of rubber, foam material or an elastomer which is ~lued, snap-fastened into or buttoned to the body of the mask in any suit-able manner. The seal thus provided may be secured to the inner mask and the-inside of the hood on one or both sides thereof.
As shown in Figures 4 and 5, the seal 9 is secured to the inner mask 3 on one side of the vicinity of the retaining ~f~
~la? 3a and is in tI1C -O~ o a ~a(~ 3~ oamcd ~aJ;erial ar.d is shaped in such ~ar!lcl: .c to ~pl~ sealillg pressure to the inside OL tI1e }100d.
The seal 9a ~a~ also be in a -orm in wllich it projects beyond tlle body o- t]le l1aSI~ ovcr ta cheeks of the ~earer to e.~tend to the tcmples a silo:ll in l`i(3ure 3 of the clrawings. The desicJn of this s.al i sucll t:h;lt oll side is ~ a~)ted to t'e sba?
of the cheek ~hile tile O~hC?l:` ~id~e ~o;lEo~llls t-o .Illd iil.ls Up all~' cavities or depressiolls bet~eell t}l~ bod~v o tile ini~er masl~ and the inside of the hoocl . The 5~;!;I1 j IIg aCtiOl1 may be i;nproved by locating a seal, at least in ~art under the strappincJ 6a so that pre~ssure is applied thereto whell the strappillg is tightelled.
According to a further aLternative construction the seal 9 ~La~ pass over the cheeks toward the wearer s eyes such that it runs around the inner edge o~ the window of the hood.
In this construction the design of the seal itself is such that when the hood is fitted and the strapping is tightened the seal is pressed to the wearer s face thus sealing off the eye area.
Figure 6 illustrates a blallk suitable for use in the forming of a hood in accordance witll an embodilllellt of the present invention. The blank is formed with an aperture 12 for receiving the viewing window 2 and a further aperture 1l for receiving the fil-ter 4. A U-shaped notch 11 is formed at the front of the hood with the side edges and inner ecqe oi tlc notcil conver inCJ at 2~ points ~ hen the blank is SeWn togetiler this produces a T-shaped seam at the front and top of the hood ~hich provides that the fron-tal area is arched as sho~ll in Figure 1. In this marner tne sewn-in ~:indo~ is clrawn to the required curved con-iguration to afforc~ a panoramic line of vision to the wearer.
From the foregoing, it will be apparent that the respirator of the present invention provides the advantages of a wide neck-opening to allow it ~o be fitted quickly and easily over the head of the wearer without imposing a restriction on the wearer. In addition, the eye area of the wearer is completely sealed by means of a sealing pad so that the hood is comfortable to wear. Furthermore, exhaled air passes downwardly through an exhaling valve out of the open lower end o the hood thereby providing the re~uired flushing of exhaled air from the hood.
Furthermore, by reason of the fact that the internal mask is secured to its mounting straps rearwardly from its point of contact with the face of the wearer, the inner mask is securely seated on the wearer's face. In addition, the structure of the hood provides that the viewing window which is formed therein will extend in an arcuate curve to provide a panoramic line of vision. These and other advantages of the present invention will be apparent to those skilled in the art.
According to one aspect of the present invention, a respirator hood comprlses a hood having a sight-window and adjust-able strapping and an external respirator filter. The hood has a wide neck opening designed to accommodate heads of different sizes.
When the neck opening is in the open configuration, it extends outwardly beyond the respirator filter. A seal is provided on each side of the hood between an inner mask and the inside of the hood for the purposes of sealing off the eye area from the neck opening.
The neck opening is open at its lower end and is in communication with ambient air~ Straps are provided which pass around the back of the head and are cor.nected to the hood for the purposes of securing the hood to the head of the wearer. Retaining flaps are formed in each side of the inner mask and merging from the body of the mask towards the temples. The flaps constitute points of application, recessed in relation to the varying surfaces, in the form of a bead, on the inner mask, for the strapping running around the outside of the hood. The sea~ is disposed below the strapping to serve as a seal line for the eye area.
The invention will be more clearly understood after reference to the following detailed specification read in conjunction with the drawings wherein:
Figure 1 is a side view of a respiratox hood;
Figure 2 is a front view of the respirator hood;
Figure 3 is a front view of the head of a person wearing a modified mask wi-thout the hood.
Figure 4 is a sectional view taken along the line A-B
of Figure l;
Figure 5 :is a section along t:he line ~-B o ri~ul-e 1 t~ithou-t the strapping; alld Figure 6 is a plan vie~ O r a bl~ suiLablc ior ~.se in forming the respirltor hood oE F:iclure 1.
The respirator hoocl illustrated in ~`i(,~lres 1 and 2 of the drawings consists of a flame-proof ancl heat-resistallt hood 1 ~ithin ~hich a viet~ing windot~ 2 is formed so as to be loc?ted in the field of vision of the t~earer. The vie~ing ~indow 2 is formed from a transparent foil material or ple~iglas, an inner mask in the form of a half-mas}; 3 is also provided. A breathing filter 4 is secured to the inner mask 3 and the hood 1 by means of a clamp 5, an exhaling valve 10 and strapping 6. The strappin~
6 consists of a tension-strap 6a and an endless strip 6b ~hicll passes around the back of the hood. The endless strip is secured to the hood at the point ~ (Figure 1) and is guided througil a loo~
Y. This arrangement has -the advalltage of s?reading the strapping and compensating for length for vrevelltillg the hood from slipping on the ~earer's head.
Arranged laterally upon t}le inller mas~ 3, appro~imately on a level ~ith the nostrils of a ~iearer, is a retainin~ flap 3~
(Figures ~l and 5) ~hich emerges from tnQ inller mask 3 and supports a buckle 7 located on the outside of the hood for receiving the stra?ping 6a. The strapping 6a is secured to the hood by ~uc~les 7 ~Jhich 2re fastened through the material of the hood 1 and -- 'I --the retaining flap 3a by means of screws or rivets 8.
The fact that the location at which the strapping 6a is secured to the hood is set back from the front of the hood, by reason of the position of the retaining flaps 3a of the inner mask, the hood can be correctly and stabley positioned on the user's face withou~ any slippage. Moreover, as a result of the special arrangement of ~he strapping and, in particular, the configuration of the blank used for the hood, the viewing window 2 which is sewn into the hood ac~uires a curved shaped when the hood is being worn. This eliminates the need for the usual curved frame to provide this curvature.
The inner mask 3 is formed with a bearing surface 3b in the form of a bead which presses against the face of the wearer when it is being used to act as a seal extending about the breathing area. This feature is illustrated in Figure 5 of the drawings.
Located on each side of the hood, between the inner mask 3 and the inside of the hood is a seal 9 which seals off the eye area from the neck opening in the hood which is open at its lower end and is in communication with the ambient air.
The seal 9 may either be in the form of lip integral with the body of the inner mask 3 or it may be provided in the form of a part made-of rubber, foam material or an elastomer which is ~lued, snap-fastened into or buttoned to the body of the mask in any suit-able manner. The seal thus provided may be secured to the inner mask and the-inside of the hood on one or both sides thereof.
As shown in Figures 4 and 5, the seal 9 is secured to the inner mask 3 on one side of the vicinity of the retaining ~f~
~la? 3a and is in tI1C -O~ o a ~a(~ 3~ oamcd ~aJ;erial ar.d is shaped in such ~ar!lcl: .c to ~pl~ sealillg pressure to the inside OL tI1e }100d.
The seal 9a ~a~ also be in a -orm in wllich it projects beyond tlle body o- t]le l1aSI~ ovcr ta cheeks of the ~earer to e.~tend to the tcmples a silo:ll in l`i(3ure 3 of the clrawings. The desicJn of this s.al i sucll t:h;lt oll side is ~ a~)ted to t'e sba?
of the cheek ~hile tile O~hC?l:` ~id~e ~o;lEo~llls t-o .Illd iil.ls Up all~' cavities or depressiolls bet~eell t}l~ bod~v o tile ini~er masl~ and the inside of the hoocl . The 5~;!;I1 j IIg aCtiOl1 may be i;nproved by locating a seal, at least in ~art under the strappincJ 6a so that pre~ssure is applied thereto whell the strappillg is tightelled.
According to a further aLternative construction the seal 9 ~La~ pass over the cheeks toward the wearer s eyes such that it runs around the inner edge o~ the window of the hood.
In this construction the design of the seal itself is such that when the hood is fitted and the strapping is tightened the seal is pressed to the wearer s face thus sealing off the eye area.
Figure 6 illustrates a blallk suitable for use in the forming of a hood in accordance witll an embodilllellt of the present invention. The blank is formed with an aperture 12 for receiving the viewing window 2 and a further aperture 1l for receiving the fil-ter 4. A U-shaped notch 11 is formed at the front of the hood with the side edges and inner ecqe oi tlc notcil conver inCJ at 2~ points ~ hen the blank is SeWn togetiler this produces a T-shaped seam at the front and top of the hood ~hich provides that the fron-tal area is arched as sho~ll in Figure 1. In this marner tne sewn-in ~:indo~ is clrawn to the required curved con-iguration to afforc~ a panoramic line of vision to the wearer.
From the foregoing, it will be apparent that the respirator of the present invention provides the advantages of a wide neck-opening to allow it ~o be fitted quickly and easily over the head of the wearer without imposing a restriction on the wearer. In addition, the eye area of the wearer is completely sealed by means of a sealing pad so that the hood is comfortable to wear. Furthermore, exhaled air passes downwardly through an exhaling valve out of the open lower end o the hood thereby providing the re~uired flushing of exhaled air from the hood.
Furthermore, by reason of the fact that the internal mask is secured to its mounting straps rearwardly from its point of contact with the face of the wearer, the inner mask is securely seated on the wearer's face. In addition, the structure of the hood provides that the viewing window which is formed therein will extend in an arcuate curve to provide a panoramic line of vision. These and other advantages of the present invention will be apparent to those skilled in the art.
Claims (14)
1. A respiratory hood for use as a fire escape device or the like comprising:
(a) an outer hood adapted to fit about the head of a wearer and having a wide neck opening through which the head of a wearer may be inserted with ease and a viewing window mounted on a window aperture;
(b) an inner mask mounted within said hood and adapted to encircle the mouth and nose of the wearer in use;
(c) seal means disposed between the hood and inner mask and extending about the perimeter of the window aperture to isolate an eye surrounding area of the hood from the neck opening;
(d) strapping means for securing the hood to the head of the wearer;
(e) retaining flap means projecting rearwardly and out-wardly from said inner mask on opposite sides thereof to provide securement points spaced outwardly from said seal means which are adapted to be secured to said strapping means whereby the strapping means may serve to seal the seal means to the face of the wearer to isolate the eye surrounding area in use; and (f) a viewing window in the outer hood.
(a) an outer hood adapted to fit about the head of a wearer and having a wide neck opening through which the head of a wearer may be inserted with ease and a viewing window mounted on a window aperture;
(b) an inner mask mounted within said hood and adapted to encircle the mouth and nose of the wearer in use;
(c) seal means disposed between the hood and inner mask and extending about the perimeter of the window aperture to isolate an eye surrounding area of the hood from the neck opening;
(d) strapping means for securing the hood to the head of the wearer;
(e) retaining flap means projecting rearwardly and out-wardly from said inner mask on opposite sides thereof to provide securement points spaced outwardly from said seal means which are adapted to be secured to said strapping means whereby the strapping means may serve to seal the seal means to the face of the wearer to isolate the eye surrounding area in use; and (f) a viewing window in the outer hood.
2. A respirator hood according to Claim 1 wherein the seal means is in the form of a lip formed on the inner mask.
3. A respirator hood according to Claim 1 wherein the seal means is in the form of a resilient member which is secured to the inner mask.
4. A respirator hood according to Clam 1 wherein one side of the seal means is secured to the body of the inner mask in the vicinity of the retaining flap.
5. A respirator hood according to Claim 1, 2 or 3 wherein the seal means is in the form of a pad of foamed material shaped in such a manner as to apply a sealing pressure to the inside of the outer hood.
6. A respirator hood according to Claim 1 wherein the seal means projects beyond the body of the inner mask and extends across the cheeks of the wearer to the temples of the wearer.
7. A respirator hood according to Claim 1 wherein the seal means extends around an inner edge of the viewing window.
8. A respirator hood according to Claim 1 wherein the endless strip of the strapping is secured at the rear of the hood and passes through a loop mounted on the hood at another location.
9. A respirator hood according to Claim 1 wherein the strapping is secured to the hood by means of buckles which are fastened through the outer hood and the retaining flap of the inner mask to the outside of the outer hood by mounting means.
10. A respirator hood according to Claim 1 wherein the viewing window is sewn into the outer hood and is curved as a result of the manner in which the strapping is secured to the hood and the configuration of the blank from which the outer hood is made.
11. A respirator hood according to Claim 1 wherein the inner mask further comprises an exhaling valve through which exhaled air may be carried downwardly and outwardly through the neck opening.
12. A flat blank for the respirator hood, more particularly according to Claim 1, having cut-outs for the window and the exhaling valve, characterized in that a U-shaped incision is provided to form the front part of the hood and in that the horizontal and vertical cuts of this incision curve towards each other and intersect at points the ends of the horizontal cut being drawn down towards the said window.
13. A flat blank according to Claim 1 characterized in that the seams of the incision form a T-shaped pattern at the front and top parts of the hood.
14. A hood-type respirator, especially for fire escape purposes, consisting, in particular, of a hood fitted with viewing window and adjustable straps, as well as with an inside mask arranged inside the hood as a half mask and with a respirator filter located outside the hood, characterized by the provision of:
a) a hood with a neck opening made to pass over different head sizes, such that, when in the spread-out state, the neck opening extends beyond the respirator filter, b) seals located inside the hood between the inside mask and the hood's interior surface and sealing of the viewing window region of the hood from the hood's lower neck-opening which is open and in communication with the surrounding atmosphere, c) drawstraps which, together with an endless strap 6b that passes around the rear-head side of the hood, constitute a strap system, d) retaining tongues attached to the sides of the inside mask and extending out from the body of the mask in the direction of the temples, the tongues providing places of attachment for the drawstraps outside of the hood and which are set back with respect to the inside mask's bearing surface.
a) a hood with a neck opening made to pass over different head sizes, such that, when in the spread-out state, the neck opening extends beyond the respirator filter, b) seals located inside the hood between the inside mask and the hood's interior surface and sealing of the viewing window region of the hood from the hood's lower neck-opening which is open and in communication with the surrounding atmosphere, c) drawstraps which, together with an endless strap 6b that passes around the rear-head side of the hood, constitute a strap system, d) retaining tongues attached to the sides of the inside mask and extending out from the body of the mask in the direction of the temples, the tongues providing places of attachment for the drawstraps outside of the hood and which are set back with respect to the inside mask's bearing surface.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3048276A DE3048276C2 (en) | 1980-12-16 | 1980-12-16 | Breathing protection hood, especially for an escape |
DEP3048276.9 | 1980-12-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1180629A true CA1180629A (en) | 1985-01-08 |
Family
ID=6119811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000389883A Expired CA1180629A (en) | 1980-12-16 | 1981-11-12 | Respirator hood |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0054154B1 (en) |
JP (1) | JPS6058877B2 (en) |
AT (1) | ATE10708T1 (en) |
CA (1) | CA1180629A (en) |
DE (1) | DE3048276C2 (en) |
NO (1) | NO151879C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7210477B2 (en) | 2002-05-29 | 2007-05-01 | Brookdale International Systems, Inc. | Respirator hood assembly |
US20140238392A1 (en) * | 2013-02-28 | 2014-08-28 | Milspray Llc | Escape hood |
Families Citing this family (43)
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DE3324599A1 (en) * | 1983-07-05 | 1985-01-31 | Auergesellschaft Gmbh, 1000 Berlin | RESPIRATOR HOOD |
US4573217A (en) * | 1984-07-30 | 1986-03-04 | Reed Clifford C | Protective hood for firefighters |
DE3701695A1 (en) * | 1987-01-22 | 1988-08-04 | Draegerwerk Ag | PROTECTIVE HOOD FOR EMERGENCY |
JPH0745228Y2 (en) * | 1988-07-27 | 1995-10-18 | 興研株式会社 | Direct blower dustproof / gasproof hood type mask |
JPH0263864U (en) * | 1988-11-01 | 1990-05-14 | ||
FI96279C (en) * | 1992-03-06 | 1996-06-10 | Kemira Oy | Respiratory protection with hood and attached filter |
US5560354A (en) | 1993-06-18 | 1996-10-01 | Rescare Limited | Facial masks for assisted respiration or CPAP |
AUPM938594A0 (en) * | 1994-11-11 | 1994-12-08 | Gorman, Warrick Ian | Smokehood 173 |
US6513526B2 (en) | 1996-07-26 | 2003-02-04 | Resmed Limited | Full-face mask and mask cushion therefor |
USD498529S1 (en) | 1996-07-26 | 2004-11-16 | Resmed Limited | Portion of a cushion for use with a mask assembly in the application of continuous positive airway pressure (CPAP) |
AUPO126596A0 (en) | 1996-07-26 | 1996-08-22 | Resmed Limited | A nasal mask and mask cushion therefor |
AUPO400296A0 (en) | 1996-12-02 | 1997-01-02 | Resmed Limited | A mask and harness apparatus |
AUPO399596A0 (en) | 1996-12-02 | 1997-01-02 | Resmed Limited | A harness assembly for a nasal mask |
AUPQ104099A0 (en) | 1999-06-18 | 1999-07-08 | Resmed Limited | Forehead support for facial mask |
AUPO504597A0 (en) | 1997-02-10 | 1997-03-06 | Resmed Limited | A mask and a vent assembly therefor |
US6561191B1 (en) | 1997-02-10 | 2003-05-13 | Resmed Limited | Mask and a vent assembly therefor |
AU133090S (en) | 1997-02-25 | 1998-03-06 | Resmed Ltd | A nasal mask shell |
AU132413S (en) | 1997-02-25 | 1997-12-09 | Resmed Ltd | A nasal mask shell and cushion assembly |
AU132412S (en) | 1997-02-25 | 1997-12-09 | Resmed Ltd | A nasal mask cushion |
US6119693A (en) | 1998-01-16 | 2000-09-19 | Resmed Limited | Forehead support for facial mask |
AUPP949999A0 (en) | 1999-03-29 | 1999-04-22 | Resmed Limited | Forehead support for facial mask II |
US6581594B1 (en) | 2000-05-15 | 2003-06-24 | Resmed Limited | Respiratory mask having gas washout vent and gas washout vent for respiratory mask |
DE20017940U1 (en) | 2000-10-19 | 2000-12-28 | MAP Medizintechnik für Arzt und Patient GmbH & Co KG, 82152 Planegg | Breathing mask for supplying a breathing gas to a mask user and a derivation device for deriving breathing gas |
US7320323B2 (en) | 2001-10-22 | 2008-01-22 | Map Medizin-Technologie Gmbh | Breathing mask device and application device and frontal support device thereof |
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DE10201682A1 (en) | 2002-01-17 | 2003-07-31 | Map Medizin Technologie Gmbh | The breathing mask arrangement |
ES2559034T3 (en) | 2002-09-06 | 2016-02-10 | Resmed Limited | Forehead pad for a respiratory mask |
US6862745B2 (en) * | 2002-10-07 | 2005-03-08 | Morning Pride Manufacturing, L.L.C. | Face mask, head harness, and protective hood for firefighter |
EP3108919B1 (en) | 2002-12-06 | 2020-09-09 | Fisher & Paykel Healthcare Limited | System for delivery of pressurized gases |
US7503327B2 (en) | 2003-04-10 | 2009-03-17 | Resmed Limited | Mask with integral cushion and forehead piece |
EP1624919B1 (en) | 2003-05-02 | 2014-01-29 | ResMed Limited | A mask system |
NZ586208A (en) | 2004-04-09 | 2012-01-12 | Resmed Ltd | A nasal assembly with a vent where at least one end of the vent has a moulding seam positioned out of the main air stream of the vent |
GB0411920D0 (en) * | 2004-05-27 | 2004-06-30 | Remploy Ltd | A face seal |
WO2005123166A1 (en) | 2004-06-16 | 2005-12-29 | Resmed Limited | Cushion for a respiratory mask assembly |
NZ591992A (en) | 2005-10-14 | 2012-11-30 | Resmed Ltd | Breathing mask with cushion attached to frame via lip of cushion engaging within recess between frame outer and inner walls, and guided in via angled protrusion of frame inner wall |
NZ612787A (en) | 2005-10-25 | 2015-01-30 | Resmed Ltd | Interchangeable mask assembly |
US8517023B2 (en) | 2007-01-30 | 2013-08-27 | Resmed Limited | Mask system with interchangeable headgear connectors |
EP4335475A3 (en) | 2008-03-04 | 2024-06-12 | ResMed Pty Ltd | Mask system |
US11331447B2 (en) | 2008-03-04 | 2022-05-17 | ResMed Pty Ltd | Mask system with snap-fit shroud |
CN104307119B (en) * | 2014-11-14 | 2017-02-22 | 山西新华化工有限责任公司 | Fire fighting escape breath hood with illumination element |
CN106723465A (en) * | 2017-04-06 | 2017-05-31 | 郑卓慧 | Severe air pollution protective garment |
CN111317929A (en) * | 2020-04-09 | 2020-06-23 | 北京益康生活智能科技有限公司 | Protective head cover |
GB2613646A (en) * | 2021-12-13 | 2023-06-14 | Gama Healthcare Ltd | Respirator device |
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BE430255A (en) * | ||||
US557625A (en) * | 1896-04-07 | Face-protector | ||
FR801176A (en) * | 1935-04-26 | 1936-07-29 | Individual protection device against combat gases | |
FR855656A (en) * | 1939-01-27 | 1940-05-17 | Balaclava mask | |
US2537265A (en) * | 1946-05-20 | 1951-01-09 | George A Gemunden | Face mask |
US2529106A (en) * | 1947-11-19 | 1950-11-07 | American Optical Corp | Combined hood and respirator |
US2583304A (en) * | 1950-06-06 | 1952-01-22 | Willson Products Inc | Dust hood |
US2642574A (en) * | 1952-02-07 | 1953-06-23 | Us Army | Helmet for protection against low-temperatures |
DE1860477U (en) * | 1961-07-17 | 1962-10-18 | Draegerwerk Ag | GAS PROTECTION MASK WITH INTERCOM. |
GB1495020A (en) * | 1974-01-16 | 1977-12-14 | Nat Res Dev | Respirators |
DE2549979C3 (en) * | 1975-11-07 | 1978-05-24 | Draegerwerk Ag, 2400 Luebeck | Protective helmet combined with a respirator |
-
1980
- 1980-12-16 DE DE3048276A patent/DE3048276C2/en not_active Expired
-
1981
- 1981-10-27 AT AT81108964T patent/ATE10708T1/en not_active IP Right Cessation
- 1981-10-27 EP EP81108964A patent/EP0054154B1/en not_active Expired
- 1981-11-12 CA CA000389883A patent/CA1180629A/en not_active Expired
- 1981-11-27 NO NO814044A patent/NO151879C/en unknown
- 1981-12-16 JP JP56201716A patent/JPS6058877B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7210477B2 (en) | 2002-05-29 | 2007-05-01 | Brookdale International Systems, Inc. | Respirator hood assembly |
US20140238392A1 (en) * | 2013-02-28 | 2014-08-28 | Milspray Llc | Escape hood |
Also Published As
Publication number | Publication date |
---|---|
DE3048276C2 (en) | 1988-06-16 |
ATE10708T1 (en) | 1984-12-15 |
DE3048276A1 (en) | 1982-07-01 |
EP0054154B1 (en) | 1984-12-12 |
JPS57156775A (en) | 1982-09-28 |
NO151879C (en) | 1985-06-26 |
NO814044L (en) | 1982-06-17 |
EP0054154A1 (en) | 1982-06-23 |
NO151879B (en) | 1985-03-18 |
JPS6058877B2 (en) | 1985-12-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry |