US3238943A - Aid breathing system - Google Patents
Aid breathing system Download PDFInfo
- Publication number
- US3238943A US3238943A US289011A US28901163A US3238943A US 3238943 A US3238943 A US 3238943A US 289011 A US289011 A US 289011A US 28901163 A US28901163 A US 28901163A US 3238943 A US3238943 A US 3238943A
- Authority
- US
- United States
- Prior art keywords
- face mask
- breathing
- air
- selector
- branch
- 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
- A62B7/02—Respiratory apparatus with compressed oxygen or air
Definitions
- the object of this invention is to provide breathable air to more than one party from the same air supply utilizing a tank of compressed air and a demand regulator as carried by the user.
- FIGURE 1 is a perspective view of a preferred embodiment of the invention with flow direction arrows according to the modus operandi to which the system is committed. Arrows drawn with solid lines represent air flow when the system is in the aid mode whereas, arrows drawn with broken lines represent air flow when the system is in the single or normal use mode.
- FIGURE 2 is 'a right side View of the Y.
- FIGURE 3 is a cross sectional view 22 taken from FIGURE 2 showing internal components and motion arrows denoting travel of the stopper valve and its associated actuating lever.
- the face mask 1 is of the usual flexible material for fitting the users face including a sight glass 24 and straps 26.
- the Y or breathing selector 2 is permanently attached to the face mask 1 during manufacture by molding a flange 3 or the like into the mask 1 for retaining purposes or by attaching in any known manner.
- the Y 2 contains two chamfered valve seats 4 one in each branch of the Y 2.
- the chamfered valve seats 4 match the angles on both sides of the flexible stopper valve 5 and when any two, namely one valve seat 4 and the corresponding angle on the stopper valve 5 are in contact, that branch of the Y 2 to which the valve seat 4 belongs, is rendered inoperative.
- the flexible stopper valve 5 is retained by the flip ring 6 which is coupled to the external actuating lever 7 by a splined or keyed pin 8.
- the pin 8 is retained axially by two snap rings 9 located at each of its ends.
- Each branch of the Y 2 contains one exhaust assembly 10 which is retained in its respective branch by a snap ring 11.
- Snap rings 11 seat into grooves and retain the assemblies between the snap ring 11 and a machined shoulder of the branch.
- the exhaust valve membrane 12 is of the usual type and is assembled to the vaned membrane socket 13 by inserting the projection on the membrane 12 int-o the recess provided in the hub of the vaned membrane socket 13.
- Each branch of the Y 2 contains protection from puncture or damage of the exhaust membrane 12.
- the aid branch contains a protective screen 14 as the membrane protector, whereas the normal use branch membrane is protected by a vented snap-in closure plug 15.
- Two pins or hose connecting means 16 are aflixed to the lower end of the branch to facilitate acceptance and locking of the cam turn lock seal connector 17. Any suitable quick connect-disconnect device known in the art may be used for this application.
- the usual flexible hose 18 of suitable length completes the attachment and air supply means between the face mask 1 and the aid mask 19 which can either be nose and mouth cover only, as shown, or may be a full face mask with eye protection.
- the aid mask 19 carries its 3,238,943 Patented Mar. 8, 1965 ice own membrane exhaust valve 20 and straps 21 for breath exhaust and attachment respectively.
- a suitable tank air supply and demand regulator not shown, is carried by party one and is well known in the art of fire fighting.
- the tank and regulator combination is coupled to the face mask of party one by the air delivery hose from the supply.
- the improvement to this system begins by the showing of the partial hose and the words, From air supply, of FIGURE 1. Air is delivered as shown in FIGURE 1 through flexible hose 22 and enters the face mask 1.
- Party one being the only user of the system, has positioned the stopper valve 5 by functioning the actuating lever 7 and is exhausting thru the right hand branch of the Y 2.
- the cam turn lock seal connector or any other suitable quick connect-disconnect means is attached and is retained by pins 16 of the left hand or aid branch of the Y 2.
- the aid mask 19 is placed on the second party and held in place by straps 21.
- the external actuating lever 7 is functioned, closing the right hand bran-ch of the primary mask.
- Party one can now open the valve on the tank air supply and deliver free flow compressed air to himself and party two or both may breathe normally utilizing the demand regulator without regard for synchronization of breathing.
- a breathing apparatus for use in low oxygen atmosphere and the like comprising a first face mask having transparent viewing means, means for attaching said first face mask to a first person, a compressed air supply, means for controlling a supply of air from said compressed air supply, means for supplying said compressed air supply to said first face mask, a breathing selector attached to said first face mask, said breathing selector having a plurality of branches, each of said branches having means for permitting only the exhaust of exhaled air, said breathing selector having an adjustable valving means for determining through which branch the air will flow, one of said branches having a plurality of hose connecting means thereon, a second face mask, means for attaching said second face mask to a second person, a hose on said second face mask removably connected to one of said hose connecting means of said first face mask, whereby said valving mean-s may be manipulated to allow the passage of air to said second face mask.
- a breathing apparatus for use in low oxygen atmosphere and the like comprising a first face mask having a sight glass, straps for attaching said first face mask to a first person, a compressed air supply, a flexible hose for supplying said compressed air to said first face mask, a Y shaped breathing select-or attached to said first face mask, said breathing selector having two branches, each branch having an exhaust assembly for permitting only the exhaust of exhaled air, said breathing selector having an adjustable flexible stopper valve for deter-mining through which branch the air will flow, one of said branches having a pair of hose connectors attached at the end thereof, a second face mask, means for attaching said second face mask to a second person, a hose on said second face mask removably connected to the branch having said hose connectors attached at the end thereof, whereby said valve may be manipulated to allow the passage of air to said second face mask.
Description
March 8, 1966 HOLLEY 3,238,943
AID BREATHING SYSTEM Filed June 19, 1963 2 Sheets-Sheet l INVENTOR EDGAR BRUCE HOLLEY March 8, 1966 E. B. HOLLEY AID BREATHING SYSTEM 2 Sheets-Sheet 2 Filed June 19, 1963 INVENTOR EDGAR BRUCE HOLLEY ATTORNEY United States Patent 3,238,943 AID BREATHING SYSTEM Edgar Bruce Holley, 211 S. Morris St., Dover, NJ. Filed June 19, 1963, Ser. No. 289,011 3 Claims. (Cl. 128142) The invention described herein covers the description of improvements and additions to equipment now used by personnel for the purpose of breathing normally in a low oxygen content atmosphere such as gas filled or smoke filled areas, using a self contained compressed air supply with a demand regulator.
The object of this invention is to provide breathable air to more than one party from the same air supply utilizing a tank of compressed air and a demand regulator as carried by the user.
The invention may be better understood when considered in the light of the attached drawings in which:
FIGURE 1 is a perspective view of a preferred embodiment of the invention with flow direction arrows according to the modus operandi to which the system is committed. Arrows drawn with solid lines represent air flow when the system is in the aid mode whereas, arrows drawn with broken lines represent air flow when the system is in the single or normal use mode.
FIGURE 2 is 'a right side View of the Y.
FIGURE 3 is a cross sectional view 22 taken from FIGURE 2 showing internal components and motion arrows denoting travel of the stopper valve and its associated actuating lever.
The face mask 1 is of the usual flexible material for fitting the users face including a sight glass 24 and straps 26. The Y or breathing selector 2 is permanently attached to the face mask 1 during manufacture by molding a flange 3 or the like into the mask 1 for retaining purposes or by attaching in any known manner.
The Y 2 contains two chamfered valve seats 4 one in each branch of the Y 2. The chamfered valve seats 4 match the angles on both sides of the flexible stopper valve 5 and when any two, namely one valve seat 4 and the corresponding angle on the stopper valve 5 are in contact, that branch of the Y 2 to which the valve seat 4 belongs, is rendered inoperative. The flexible stopper valve 5 is retained by the flip ring 6 which is coupled to the external actuating lever 7 by a splined or keyed pin 8. The pin 8 is retained axially by two snap rings 9 located at each of its ends.
Each branch of the Y 2 contains one exhaust assembly 10 which is retained in its respective branch by a snap ring 11. Snap rings 11 seat into grooves and retain the assemblies between the snap ring 11 and a machined shoulder of the branch.
The exhaust valve membrane 12 is of the usual type and is assembled to the vaned membrane socket 13 by inserting the projection on the membrane 12 int-o the recess provided in the hub of the vaned membrane socket 13.
Each branch of the Y 2 contains protection from puncture or damage of the exhaust membrane 12. The aid branch contains a protective screen 14 as the membrane protector, whereas the normal use branch membrane is protected by a vented snap-in closure plug 15.
Two pins or hose connecting means 16 are aflixed to the lower end of the branch to facilitate acceptance and locking of the cam turn lock seal connector 17. Any suitable quick connect-disconnect device known in the art may be used for this application.
The usual flexible hose 18 of suitable length, completes the attachment and air supply means between the face mask 1 and the aid mask 19 which can either be nose and mouth cover only, as shown, or may be a full face mask with eye protection. The aid mask 19 carries its 3,238,943 Patented Mar. 8, 1965 ice own membrane exhaust valve 20 and straps 21 for breath exhaust and attachment respectively.
A suitable tank air supply and demand regulator not shown, is carried by party one and is well known in the art of fire fighting. The tank and regulator combination is coupled to the face mask of party one by the air delivery hose from the supply. The improvement to this system begins by the showing of the partial hose and the words, From air supply, of FIGURE 1. Air is delivered as shown in FIGURE 1 through flexible hose 22 and enters the face mask 1. Party one being the only user of the system, has positioned the stopper valve 5 by functioning the actuating lever 7 and is exhausting thru the right hand branch of the Y 2. Upon finding or being approached by someone in need of air of a higher oxygen content, the cam turn lock seal connector or any other suitable quick connect-disconnect means, is attached and is retained by pins 16 of the left hand or aid branch of the Y 2.
The aid mask 19 is placed on the second party and held in place by straps 21. The external actuating lever 7 is functioned, closing the right hand bran-ch of the primary mask. Party one can now open the valve on the tank air supply and deliver free flow compressed air to himself and party two or both may breathe normally utilizing the demand regulator without regard for synchronization of breathing.
I claim:
1. A breathing apparatus for use in low oxygen atmosphere and the like comprising a first face mask having transparent viewing means, means for attaching said first face mask to a first person, a compressed air supply, means for controlling a supply of air from said compressed air supply, means for supplying said compressed air supply to said first face mask, a breathing selector attached to said first face mask, said breathing selector having a plurality of branches, each of said branches having means for permitting only the exhaust of exhaled air, said breathing selector having an adjustable valving means for determining through which branch the air will flow, one of said branches having a plurality of hose connecting means thereon, a second face mask, means for attaching said second face mask to a second person, a hose on said second face mask removably connected to one of said hose connecting means of said first face mask, whereby said valving mean-s may be manipulated to allow the passage of air to said second face mask.
2. A breathing apparatus for use in low oxygen atmosphere and the like comprising a first face mask having a sight glass, straps for attaching said first face mask to a first person, a compressed air supply, a flexible hose for supplying said compressed air to said first face mask, a Y shaped breathing select-or attached to said first face mask, said breathing selector having two branches, each branch having an exhaust assembly for permitting only the exhaust of exhaled air, said breathing selector having an adjustable flexible stopper valve for deter-mining through which branch the air will flow, one of said branches having a pair of hose connectors attached at the end thereof, a second face mask, means for attaching said second face mask to a second person, a hose on said second face mask removably connected to the branch having said hose connectors attached at the end thereof, whereby said valve may be manipulated to allow the passage of air to said second face mask.
3. A device of the type described in claim 2 wherein said breathing selector includes a keyed pin and an external actuating lever and said flexible stopper valve is secured to the breathing selector by said keyed pin, said keyed pin being connected to said external actuating lever for easy manipulation of said flexible stopper valve.
(References on following page) 3 4 References Cited by the Examiner FOREIGN PATENTS UNITED STATES PATENTS 835,731 10/ 1938 France.
1,691,648 11/1928 Drager 128141 2,887,104 5/1959 Sovinsky et a1 128 29 RICHARD A. GAUDET, Pnmary Exammer.
r 2,887,105 5/1959 Brown et a1. 12829 0 W. E. KAMM, Assistant Examiner.
Claims (1)
1. A BREATHING APPARATUS FOR USE IN LOW OXYGEN ATMOSPHERS AND THE LIKE COMPRISING A FIRST FACE MASK HAVING TRANSPARENT VIEWING MEANS, MEANS FOR ATTACHING SAID FIRST FACE MASK TO A FIRST PERSON, A COMPRESSED AIR SUPPLY, MEANS FOR CONTROLLING A SUPPLY OF AIR FROM SAID COMPRESSED AIR SUPPLY, MEANS FOR SUPPLYING SAID COMPRESSED AIR SUPPLY TO SAID FIRST FACE MASK, A BREATHING SELECTOR ATTACHED TO SAID FIRST FACE MASK, SAID BREATHING SELECTOR HAVING A PLURALITY OF BRANCHES, EACH OF SAID BRANCHES HAVING MEANS FOR PERMITTING ONLY THE EXHAUST OF EXHALED AIR, FOR DETERMINING SELECTOR HAVING AN ADJUSTABLE VALVING MEANS FOR DETERMINING THROUGH WHICH BRANCH THE AIR WILL FLOW, ONE OF SAID BRANCHES HAVING A PLURALITY OF HOSE CONNECTING MEANS THEREON, A SECOND FACE MASK, MEANS FOR ATTACHING SAID SECOND FACE MASK TO A SECOND PERSON, A HOSE ON SAID SECOND FACE MASK REMOVABLY CONNECTED TO ONE OF SAID HOSE CONNECTING MEANS OF SAID FIRST FACE MASK, WHEREBY SAID VALVING MEANS MAY BE MANIPULATED TO ALLOW THE PASSAGE OF AIR TO SAID SECOND FACE MASK.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US289011A US3238943A (en) | 1963-06-19 | 1963-06-19 | Aid breathing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US289011A US3238943A (en) | 1963-06-19 | 1963-06-19 | Aid breathing system |
Publications (1)
Publication Number | Publication Date |
---|---|
US3238943A true US3238943A (en) | 1966-03-08 |
Family
ID=23109624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US289011A Expired - Lifetime US3238943A (en) | 1963-06-19 | 1963-06-19 | Aid breathing system |
Country Status (1)
Country | Link |
---|---|
US (1) | US3238943A (en) |
Cited By (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3995626A (en) * | 1975-06-20 | 1976-12-07 | Pearce Jr Fredric C | Connector device for breathing apparatus |
US4111342A (en) * | 1976-08-19 | 1978-09-05 | Kirby Gary R | Breathing apparatus |
US4173220A (en) * | 1976-07-05 | 1979-11-06 | Midori Anzen Company, Ltd. | Facemask |
US4392490A (en) * | 1981-02-23 | 1983-07-12 | Mattingly Glen R | Multiple outlet connecting means for self-contained positive pressure or demand regulated breathing apparatus |
EP0089285A2 (en) * | 1982-03-15 | 1983-09-21 | Litton Systems, Inc. | Self-contained breathing apparatus with provision for shared use |
US4603833A (en) * | 1982-06-14 | 1986-08-05 | Tony Christianson | Inlet valve for breathing apparatus second stage regulators |
EP0235688A1 (en) * | 1986-02-24 | 1987-09-09 | Mine Safety Appliances Company | Replenishable self contained breathing apparatus |
US4774939A (en) * | 1987-07-02 | 1988-10-04 | Disney Alfred L | Emergency breathing and warning device |
US4838256A (en) * | 1988-04-28 | 1989-06-13 | Miltz Arthur I | Method and apparatus for air transfer between scuba divers |
US4840199A (en) * | 1987-11-03 | 1989-06-20 | Brunt Jr Charles D | Regulator safety valve |
US5438981A (en) * | 1993-09-30 | 1995-08-08 | Respironics, Inc. | Automatic safety valve and diffuser for nasal and/or oral gas delivery mask |
US5738088A (en) * | 1995-08-23 | 1998-04-14 | Draeger Limited | Breathing apparatus |
US5868130A (en) * | 1997-11-04 | 1999-02-09 | Sea Turtle Scuba, Inc. | Underwater emergency breathing device |
WO1999027998A1 (en) * | 1997-12-03 | 1999-06-10 | Antti Survonen | Method and apparatus for the utilization of exhaust gases from a protective head mask |
US6006748A (en) * | 1996-10-16 | 1999-12-28 | Resmed Limited | Vent valve apparatus |
US6029660A (en) * | 1996-12-12 | 2000-02-29 | Resmed Limited | Substance delivery apparatus |
US6044844A (en) * | 1996-12-02 | 2000-04-04 | Resmed Limited | Mask and harness assembly |
USD423096S (en) * | 1997-02-25 | 2000-04-18 | Resmed Limited | Nasal mask cushion |
USD428987S (en) * | 1997-02-25 | 2000-08-01 | Resmed Limited | Nasal mask shell |
US6112746A (en) * | 1996-07-26 | 2000-09-05 | Resmed Limited | Nasal mask and mask cushion therefor |
US6119693A (en) * | 1998-01-16 | 2000-09-19 | Resmed Limited | Forehead support for facial mask |
US6123082A (en) * | 1996-12-18 | 2000-09-26 | Resmed Limited | Device for preventing or reducing the passage of air through the mouth |
US6123071A (en) * | 1993-06-18 | 2000-09-26 | Resmed Limited | Facial masks for assisted respiration or CPAP |
USD435650S (en) * | 1997-02-25 | 2000-12-26 | Resmed Limited | Combined nasal mask shell and cushion |
US6494207B1 (en) | 1996-12-02 | 2002-12-17 | Resmed Limited | Harness assembly for a nasal mask |
US20030019495A1 (en) * | 2001-05-18 | 2003-01-30 | Palkon David J. | Mask cushion and method of using same |
US6513526B2 (en) | 1996-07-26 | 2003-02-04 | Resmed Limited | Full-face mask and mask cushion therefor |
US20030034034A1 (en) * | 1999-06-18 | 2003-02-20 | Resmed Limited | Forehead support for facial mask |
US6561191B1 (en) | 1997-02-10 | 2003-05-13 | Resmed Limited | Mask and a vent assembly therefor |
US6561190B1 (en) | 1997-02-10 | 2003-05-13 | Resmed Limited | Mask and a vent assembly therefor |
US20030221691A1 (en) * | 2000-10-19 | 2003-12-04 | Achim Biener | Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas |
US20040045550A1 (en) * | 2002-01-01 | 2004-03-11 | Bernd Lang | Breathing mask arrangement and a forehead support device for same |
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) |
US20050005940A1 (en) * | 2003-04-10 | 2005-01-13 | Resmed Limited | Mask with integral cushion and forehead piece |
US20050022820A1 (en) * | 2003-05-05 | 2005-02-03 | Kwok Philip R. | Forehead support for facial mask |
US20050139219A1 (en) * | 1999-03-29 | 2005-06-30 | Resmed Limited | Forehead support for facial mask |
US20050241644A1 (en) * | 2004-04-09 | 2005-11-03 | Resmed Limited | Nasal assembly |
US20060191538A1 (en) * | 2001-10-22 | 2006-08-31 | Map Medizin-Technologie Gmbh | Application device for breathing mask arrangement |
US20060196509A1 (en) * | 2000-05-15 | 2006-09-07 | Resmed Limited | Respiratory mask having gas washout vent & gas washout vent assembly for a respiratory mask |
US7168428B1 (en) * | 2002-05-16 | 2007-01-30 | Zoha David G | Apparatus for connecting air bottles |
US7290546B2 (en) | 2002-03-22 | 2007-11-06 | Invacare Corporation | Nasal mask |
US7320323B2 (en) | 2001-10-22 | 2008-01-22 | Map Medizin-Technologie Gmbh | Breathing mask device and application device and frontal support device thereof |
US20080066761A1 (en) * | 2006-09-18 | 2008-03-20 | Invacare Corporation | Breathing mask |
US20080257354A1 (en) * | 2007-04-19 | 2008-10-23 | Resmed Limited | Cushion and cushion to frame assembly mechanism for patient interface |
US7621274B2 (en) | 2003-03-22 | 2009-11-24 | Invacare Corporation | Nasal mask |
US8353294B2 (en) | 2004-06-16 | 2013-01-15 | Resmed Limited | Respiratory mask assembly |
US8485192B2 (en) | 2005-01-12 | 2013-07-16 | Resmed Limited | Cushion for patient interface |
US8505535B2 (en) | 2003-05-02 | 2013-08-13 | Resmed Limited | Mask system |
US8517023B2 (en) | 2007-01-30 | 2013-08-27 | Resmed Limited | Mask system with interchangeable headgear connectors |
US8522784B2 (en) | 2008-03-04 | 2013-09-03 | Resmed Limited | Mask system |
US8522785B2 (en) | 2002-08-05 | 2013-09-03 | Resmed Limited | Inextensible headgear and CPAP or ventilator mask assembly with the same |
US8944061B2 (en) | 2005-10-14 | 2015-02-03 | Resmed Limited | Cushion to frame assembly mechanism |
US9072853B2 (en) | 2001-09-07 | 2015-07-07 | Resmed Limited | Forehead pad for respiratory mask |
US9381316B2 (en) | 2005-10-25 | 2016-07-05 | Resmed Limited | Interchangeable mask assembly |
US9802021B2 (en) | 2002-12-06 | 2017-10-31 | Fisher & Paykel Healthcare Limited | Mouthpiece |
US11331447B2 (en) | 2008-03-04 | 2022-05-17 | ResMed Pty Ltd | Mask system with snap-fit shroud |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1691648A (en) * | 1926-03-16 | 1928-11-13 | Drager Elfriede | Breathing device |
FR835731A (en) * | 1938-03-25 | 1938-12-29 | Improvements to gas protection devices for young children | |
US2887104A (en) * | 1958-03-12 | 1959-05-19 | Sovinsky Eugene | Mask to mask resuscitator |
US2887105A (en) * | 1958-03-12 | 1959-05-19 | Elwyn S Brown | Mask to mask resuscitator |
-
1963
- 1963-06-19 US US289011A patent/US3238943A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1691648A (en) * | 1926-03-16 | 1928-11-13 | Drager Elfriede | Breathing device |
FR835731A (en) * | 1938-03-25 | 1938-12-29 | Improvements to gas protection devices for young children | |
US2887104A (en) * | 1958-03-12 | 1959-05-19 | Sovinsky Eugene | Mask to mask resuscitator |
US2887105A (en) * | 1958-03-12 | 1959-05-19 | Elwyn S Brown | Mask to mask resuscitator |
Cited By (207)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3995626A (en) * | 1975-06-20 | 1976-12-07 | Pearce Jr Fredric C | Connector device for breathing apparatus |
US4173220A (en) * | 1976-07-05 | 1979-11-06 | Midori Anzen Company, Ltd. | Facemask |
US4111342A (en) * | 1976-08-19 | 1978-09-05 | Kirby Gary R | Breathing apparatus |
US4392490A (en) * | 1981-02-23 | 1983-07-12 | Mattingly Glen R | Multiple outlet connecting means for self-contained positive pressure or demand regulated breathing apparatus |
EP0089285A2 (en) * | 1982-03-15 | 1983-09-21 | Litton Systems, Inc. | Self-contained breathing apparatus with provision for shared use |
EP0089285A3 (en) * | 1982-03-15 | 1984-03-21 | Litton Systems, Inc. | Self-contained breathing apparatus with provision for shared use |
US4603833A (en) * | 1982-06-14 | 1986-08-05 | Tony Christianson | Inlet valve for breathing apparatus second stage regulators |
EP0235688A1 (en) * | 1986-02-24 | 1987-09-09 | Mine Safety Appliances Company | Replenishable self contained breathing apparatus |
US4714077A (en) * | 1986-02-24 | 1987-12-22 | Mine Safety Appliances Company | Replenishable self contained breathing apparatus |
US4774939A (en) * | 1987-07-02 | 1988-10-04 | Disney Alfred L | Emergency breathing and warning device |
US4840199A (en) * | 1987-11-03 | 1989-06-20 | Brunt Jr Charles D | Regulator safety valve |
US4838256A (en) * | 1988-04-28 | 1989-06-13 | Miltz Arthur I | Method and apparatus for air transfer between scuba divers |
US6123071A (en) * | 1993-06-18 | 2000-09-26 | Resmed Limited | Facial masks for assisted respiration or CPAP |
US5438981A (en) * | 1993-09-30 | 1995-08-08 | Respironics, Inc. | Automatic safety valve and diffuser for nasal and/or oral gas delivery mask |
US5738088A (en) * | 1995-08-23 | 1998-04-14 | Draeger Limited | Breathing apparatus |
US7243651B2 (en) | 1996-07-26 | 2007-07-17 | Resmed Limited | Cushion and mask therefor |
US20040094159A1 (en) * | 1996-07-26 | 2004-05-20 | Resmed Limited | Breathing mask and mask cushion therefor |
US20050022818A1 (en) * | 1996-07-26 | 2005-02-03 | Resmed Limited | Cushion and mask therefor |
US8056561B2 (en) | 1996-07-26 | 2011-11-15 | Resmed Limited | Full-face mask and mask cushion therefor |
US7950392B2 (en) | 1996-07-26 | 2011-05-31 | Resmed Limited | Cushion and mask therefor |
US20070261697A1 (en) * | 1996-07-26 | 2007-11-15 | Resmed Limited | Cushion and mask therefor |
US6112746A (en) * | 1996-07-26 | 2000-09-05 | Resmed Limited | Nasal mask and mask cushion therefor |
US6871649B2 (en) | 1996-07-26 | 2005-03-29 | Resmed Limited | Nasal mask cushion assembly |
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) |
US8522783B2 (en) | 1996-07-26 | 2013-09-03 | Resmed Limited | Cushion and mask therefor |
US9421339B2 (en) | 1996-07-26 | 2016-08-23 | Resmed Limited | Patient interface |
US6357441B1 (en) | 1996-07-26 | 2002-03-19 | Resmed Limited | Nasal mask and mask cushion therefor |
US20070107735A1 (en) * | 1996-07-26 | 2007-05-17 | Resmed Limited | Mask |
US6701927B2 (en) | 1996-07-26 | 2004-03-09 | Resmed Limited | Full-face mask and mask cushion therefor |
US8636006B2 (en) | 1996-07-26 | 2014-01-28 | Resmed Limited | Mask |
US6513526B2 (en) | 1996-07-26 | 2003-02-04 | Resmed Limited | Full-face mask and mask cushion therefor |
US7178527B2 (en) | 1996-07-26 | 2007-02-20 | Resmed Limited | Nasal mask and mask cushion therefor |
US6634358B2 (en) | 1996-07-26 | 2003-10-21 | Resmed Limited | Nasal mask cushion assembly |
US7069933B2 (en) | 1996-07-26 | 2006-07-04 | Resmed Limited | Breathing mask and mask cushion therefor |
US6581602B2 (en) | 1996-07-26 | 2003-06-24 | Resmed Limited | Nasal mask and mask cushion therefor |
US7059325B2 (en) | 1996-10-16 | 2006-06-13 | Resmed Limited | Vent assembly |
US20060185674A1 (en) * | 1996-10-16 | 2006-08-24 | Resmed Limited | Vent valve apparatus |
US6006748A (en) * | 1996-10-16 | 1999-12-28 | Resmed Limited | Vent valve apparatus |
US8997739B2 (en) | 1996-10-16 | 2015-04-07 | Resmed Limited | Vent valve apparatus |
US9770571B2 (en) | 1996-10-16 | 2017-09-26 | Resmed Limited | Vent valve assembly |
US6889692B2 (en) | 1996-10-16 | 2005-05-10 | Resmed Limited | Vent valve assembly |
US7036508B2 (en) | 1996-12-02 | 2006-05-02 | Resmed Limited | Harness assembly for a nasal mask |
US6494207B1 (en) | 1996-12-02 | 2002-12-17 | Resmed Limited | Harness assembly for a nasal mask |
US20070267021A1 (en) * | 1996-12-02 | 2007-11-22 | Resmed Limited | Harness assembly for a nasal mask |
US6044844A (en) * | 1996-12-02 | 2000-04-04 | Resmed Limited | Mask and harness assembly |
US6029660A (en) * | 1996-12-12 | 2000-02-29 | Resmed Limited | Substance delivery apparatus |
US6123082A (en) * | 1996-12-18 | 2000-09-26 | Resmed Limited | Device for preventing or reducing the passage of air through the mouth |
US8826910B2 (en) | 1997-02-10 | 2014-09-09 | Resmed Limited | Mask and vent assembly therefor |
US6561191B1 (en) | 1997-02-10 | 2003-05-13 | Resmed Limited | Mask and a vent assembly therefor |
US8122886B2 (en) | 1997-02-10 | 2012-02-28 | Resmed Limited | Respiratory mask assembly with vent |
US8833371B2 (en) | 1997-02-10 | 2014-09-16 | Resmed Limited | Mask and vent assembly therefor |
US20070101998A1 (en) * | 1997-02-10 | 2007-05-10 | Resmed Limited | Respiratory mask assembly with vent |
US7207335B2 (en) | 1997-02-10 | 2007-04-24 | Resmed Limited | Mask and vent assembly therefor |
US7845354B2 (en) | 1997-02-10 | 2010-12-07 | Resmed Limited | Mask and vent assembly therefor |
US6561190B1 (en) | 1997-02-10 | 2003-05-13 | Resmed Limited | Mask and a vent assembly therefor |
USD423096S (en) * | 1997-02-25 | 2000-04-18 | Resmed Limited | Nasal mask cushion |
USD428987S (en) * | 1997-02-25 | 2000-08-01 | Resmed Limited | Nasal mask shell |
USD435650S (en) * | 1997-02-25 | 2000-12-26 | Resmed Limited | Combined nasal mask shell and cushion |
US5868130A (en) * | 1997-11-04 | 1999-02-09 | Sea Turtle Scuba, Inc. | Underwater emergency breathing device |
WO1999027998A1 (en) * | 1997-12-03 | 1999-06-10 | Antti Survonen | Method and apparatus for the utilization of exhaust gases from a protective head mask |
US20110094517A1 (en) * | 1998-01-16 | 2011-04-28 | Resmed Limited | Forehead support for facial mask |
US6463931B1 (en) | 1998-01-16 | 2002-10-15 | Resmed Limited | Forehead support for facial mask |
US20040060561A1 (en) * | 1998-01-16 | 2004-04-01 | Resmed Limited | Forehead support for facial mask |
US7882837B2 (en) | 1998-01-16 | 2011-02-08 | Resmed Limited | Forehead support for facial mask |
USD782028S1 (en) | 1998-01-16 | 2017-03-21 | Resmed Limited | Pad for forehead support |
US9220861B2 (en) | 1998-01-16 | 2015-12-29 | Resmed Limited | Forehead support for facial mask |
US20060011202A1 (en) * | 1998-01-16 | 2006-01-19 | Resmed Limited | Forehead support for facial mask |
USD807497S1 (en) | 1998-01-16 | 2018-01-09 | Resmed Limited | Pad for forehead support |
US6691708B2 (en) | 1998-01-16 | 2004-02-17 | Resmed Limited | Forehead support for facial mask |
US6557556B2 (en) | 1998-01-16 | 2003-05-06 | Resmed Limited | Forehead support for facial mask |
US6997188B2 (en) | 1998-01-16 | 2006-02-14 | Resmed Limited | Forehead support for facial mask |
US6119693A (en) * | 1998-01-16 | 2000-09-19 | Resmed Limited | Forehead support for facial mask |
US7942149B2 (en) | 1999-03-29 | 2011-05-17 | Resmed Limited | Forehead support for a facial mask |
US8646450B2 (en) | 1999-03-29 | 2014-02-11 | Resmed Limited | Forehead support for a facial mask |
US6973929B2 (en) | 1999-03-29 | 2005-12-13 | Resmed Limited | Forehead support for a facial mask |
US20110174311A1 (en) * | 1999-03-29 | 2011-07-21 | Resmed Limited | Forehead support for a facial mask |
US20050139219A1 (en) * | 1999-03-29 | 2005-06-30 | Resmed Limited | Forehead support for facial mask |
US20090114231A1 (en) * | 1999-03-29 | 2009-05-07 | Resmed Limited | Forehead support for a facial mask |
US7472704B2 (en) | 1999-03-29 | 2009-01-06 | Resmed Limited | Forehead support for facial mask |
US7610916B2 (en) | 1999-06-18 | 2009-11-03 | Resmed Limited | Forehead support for facial mask |
US9592359B2 (en) | 1999-06-18 | 2017-03-14 | Resmed Limited | Forehead support for facial mask |
US20030034034A1 (en) * | 1999-06-18 | 2003-02-20 | Resmed Limited | Forehead support for facial mask |
US7234466B2 (en) | 1999-06-18 | 2007-06-26 | Resmed Limited | Forehead support for facial mask |
US20100012129A1 (en) * | 1999-06-18 | 2010-01-21 | Resmed Limited | Forehead support for facial mask |
US8186348B2 (en) | 1999-06-18 | 2012-05-29 | Resmed Limited | Forehead support for facial mask |
US6860269B2 (en) | 1999-06-18 | 2005-03-01 | Resmed Limited | Forehead support for facial mask |
US20060196509A1 (en) * | 2000-05-15 | 2006-09-07 | Resmed Limited | Respiratory mask having gas washout vent & gas washout vent assembly for a respiratory mask |
US8528558B2 (en) | 2000-05-15 | 2013-09-10 | Resmed Limited | Respiratory mask having washout vent and gas washout vent assembly for a respiratory mask |
US7926487B2 (en) | 2000-05-15 | 2011-04-19 | Resmed Limited | Respiratory mask having gas washout vent and gas washout vent assembly for a respiratory mask |
US10596342B2 (en) | 2000-10-19 | 2020-03-24 | Resmed R&D Germany Gmbh | Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas |
US9662467B2 (en) | 2000-10-19 | 2017-05-30 | Resmed R&D Germany Gmbh | Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas |
US7100610B2 (en) | 2000-10-19 | 2006-09-05 | Map Medizintechnologie Gmbh | Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas |
US7775209B2 (en) | 2000-10-19 | 2010-08-17 | Map Medizintechnologie Gmbh | Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas |
US20100300447A1 (en) * | 2000-10-19 | 2010-12-02 | Map Medizintechnologie Gmbh | Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas |
US8746250B2 (en) | 2000-10-19 | 2014-06-10 | Resmed R&D Germany Gmbh | Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas |
US8371301B2 (en) | 2000-10-19 | 2013-02-12 | Resmed R&D Germany Gmbh | Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas |
US20030221691A1 (en) * | 2000-10-19 | 2003-12-04 | Achim Biener | Breathing mask for feeding a breathing gas to a mask user and discharge device for discharging breathing gas |
US20030019495A1 (en) * | 2001-05-18 | 2003-01-30 | Palkon David J. | Mask cushion and method of using same |
US7007696B2 (en) | 2001-05-18 | 2006-03-07 | Tiara Medical Systems, Inc. | Mask cushion and method of using same |
US9072853B2 (en) | 2001-09-07 | 2015-07-07 | Resmed Limited | Forehead pad for respiratory mask |
US10195385B2 (en) | 2001-09-07 | 2019-02-05 | Resmed Limited | Forehead pad for respiratory mask |
US10058671B2 (en) | 2001-10-22 | 2018-08-28 | Resmed R&D Germany Gmbh | Application device for a breathing mask arrangement |
US8875710B2 (en) | 2001-10-22 | 2014-11-04 | Resmed R&D Germany Gmbh | Application device for a breathing mask arrangement |
US10245403B2 (en) | 2001-10-22 | 2019-04-02 | RedMed R&D Germany GmbH | Breathing mask arrangement as well as an application device and a forehead support device for same |
US20110226254A1 (en) * | 2001-10-22 | 2011-09-22 | Map Medizin-Technologie Gmbh | Breathing mask arrangement as well as an application device and a forehead support device for same |
US9889266B2 (en) | 2001-10-22 | 2018-02-13 | Resmed R&D Germany Gmbh | Breathing mask arrangement as well as an application device and a forehead support device for same |
US7992559B2 (en) | 2001-10-22 | 2011-08-09 | Map Medizin-Technologie Gmbh | Breathing mask arrangement as well as an application device and a forehead support device for same |
US9144656B2 (en) | 2001-10-22 | 2015-09-29 | Resmed R&D Germany Gmbh | Breathing mask arrangement as well as an application device and a forehead support device for same |
US7967014B2 (en) | 2001-10-22 | 2011-06-28 | Map Medizin-Technologie Gmbh | Application device for breathing mask arrangement |
US8479738B2 (en) | 2001-10-22 | 2013-07-09 | Resmed R&D Germany Gmbh | Breathing mask arrangement as well as an application device and a forehead support device for same |
US7320323B2 (en) | 2001-10-22 | 2008-01-22 | Map Medizin-Technologie Gmbh | Breathing mask device and application device and frontal support device thereof |
US20060191538A1 (en) * | 2001-10-22 | 2006-08-31 | Map Medizin-Technologie Gmbh | Application device for breathing mask arrangement |
US9757534B2 (en) | 2001-10-22 | 2017-09-12 | Resmed R&D Germany Gmbh | Breathing mask arrangement as well as an application device and a forehead support device for same |
US20040045550A1 (en) * | 2002-01-01 | 2004-03-11 | Bernd Lang | Breathing mask arrangement and a forehead support device for same |
US20050211252A1 (en) * | 2002-01-17 | 2005-09-29 | Map Medizin-Technologie Gmbh | Breathing mask arrangement and a forehead support device for same |
US7000614B2 (en) | 2002-01-17 | 2006-02-21 | Map Medizin-Technologie Gmbh | Breathing mask arrangement and a forehead support device for same |
US8402972B2 (en) | 2002-01-17 | 2013-03-26 | Resmed R&D Germany Gmbh | Breathing mask arrangement and a forehead support device for same |
US9259549B2 (en) | 2002-01-17 | 2016-02-16 | Resmed R&D Germany Gmbh | Breathing mask arrangement and a forehead support device for same |
US7654263B2 (en) | 2002-01-17 | 2010-02-02 | Map Medizin-Technologie Gmbh | Breathing mask arrangement and a forehead support device for same |
US7290546B2 (en) | 2002-03-22 | 2007-11-06 | Invacare Corporation | Nasal mask |
US7168428B1 (en) * | 2002-05-16 | 2007-01-30 | Zoha David G | Apparatus for connecting air bottles |
US9597473B2 (en) | 2002-08-05 | 2017-03-21 | Resmed Limited | Inextensible headgear and CPAP or ventilator mask assembly with same |
US8522785B2 (en) | 2002-08-05 | 2013-09-03 | Resmed Limited | Inextensible headgear and CPAP or ventilator mask assembly with the same |
US11471639B2 (en) | 2002-12-06 | 2022-10-18 | Fisher & Paykel Healthcare Limited | Respiratory interface with elbow |
US10500365B2 (en) | 2002-12-06 | 2019-12-10 | Fisher & Paykel Healthcare Limited | Respiratory interface with elbow |
US9956369B2 (en) | 2002-12-06 | 2018-05-01 | Fisher & Paykel Healthcare Limited | Mouthpiece |
US9802021B2 (en) | 2002-12-06 | 2017-10-31 | Fisher & Paykel Healthcare Limited | Mouthpiece |
US7621274B2 (en) | 2003-03-22 | 2009-11-24 | Invacare Corporation | Nasal mask |
US8794239B2 (en) | 2003-04-10 | 2014-08-05 | Resmed Limited | Mask with integral cushion and forehead piece |
US7503327B2 (en) | 2003-04-10 | 2009-03-17 | Resmed Limited | Mask with integral cushion and forehead piece |
US20110000491A1 (en) * | 2003-04-10 | 2011-01-06 | Resmed Limited | Mask with integral cushion and forehead piece |
US20080092899A1 (en) * | 2003-04-10 | 2008-04-24 | Resmed Limited | Mask with integral cushion and forehead piece |
US9248251B2 (en) | 2003-04-10 | 2016-02-02 | Resmed Limited | Mask with integral cushion and forehead piece |
US20050005940A1 (en) * | 2003-04-10 | 2005-01-13 | Resmed Limited | Mask with integral cushion and forehead piece |
US7762259B2 (en) | 2003-04-10 | 2010-07-27 | Resmed Limited | Mask with integral cushion and forehead piece |
US10369315B2 (en) | 2003-04-10 | 2019-08-06 | ResMed Pty Ltd | Respiratory mask with molded frame and cushion |
US8210180B2 (en) | 2003-04-10 | 2012-07-03 | Resmed Limited | Mask with integral cushion and forehead piece |
US8505535B2 (en) | 2003-05-02 | 2013-08-13 | Resmed Limited | Mask system |
US9895503B2 (en) | 2003-05-02 | 2018-02-20 | Resmed Limited | Mask system |
US7406965B2 (en) | 2003-05-05 | 2008-08-05 | Resmed Limited | Forehead support for facial mask |
US20050022820A1 (en) * | 2003-05-05 | 2005-02-03 | Kwok Philip R. | Forehead support for facial mask |
US8757162B2 (en) | 2004-04-09 | 2014-06-24 | Resmed Limited | Nasal assembly |
US20050241644A1 (en) * | 2004-04-09 | 2005-11-03 | Resmed Limited | Nasal assembly |
US7942150B2 (en) | 2004-04-09 | 2011-05-17 | Resmed Limited | Nasal assembly |
US10842957B2 (en) | 2004-04-09 | 2020-11-24 | ResMed Pty Ltd | Nasal assembly |
US9895505B2 (en) | 2004-04-09 | 2018-02-20 | Resmed Limited | Nasal assembly |
US8353294B2 (en) | 2004-06-16 | 2013-01-15 | Resmed Limited | Respiratory mask assembly |
US9375545B2 (en) | 2004-06-16 | 2016-06-28 | Resmed Limited | Respiratory mask assembly |
US10039893B2 (en) | 2004-06-16 | 2018-08-07 | Resmed Limited | Respiratory mask assembly |
US10668241B2 (en) | 2004-06-16 | 2020-06-02 | ResMed Pty Ltd | Cushion for a respiratory mask assembly |
US11071839B2 (en) | 2004-06-16 | 2021-07-27 | ResMed Pty Ltd | Cushion for a respiratory mask assembly |
US11529489B2 (en) | 2004-06-16 | 2022-12-20 | ResMed Pty Ltd | Cushion for a respiratory mask assembly |
US8613280B2 (en) | 2005-01-12 | 2013-12-24 | Resmed Limited | Cushion for patient interface |
US8573215B2 (en) | 2005-01-12 | 2013-11-05 | Resmed Limited | Cushion for patient interface |
US10456544B2 (en) | 2005-01-12 | 2019-10-29 | ResMed Pty Ltd | Cushion for patient interface |
US11607515B2 (en) | 2005-01-12 | 2023-03-21 | ResMed Pty Ltd | Cushion for patient interface |
US8550083B2 (en) | 2005-01-12 | 2013-10-08 | Resmed Limited | Cushion for patient interface |
US8550082B2 (en) | 2005-01-12 | 2013-10-08 | Resmed Limited | Cushion for patient interface |
US8485192B2 (en) | 2005-01-12 | 2013-07-16 | Resmed Limited | Cushion for patient interface |
US9295800B2 (en) | 2005-01-12 | 2016-03-29 | Resmed Limited | Cushion for patient interface |
US8616211B2 (en) | 2005-01-12 | 2013-12-31 | Resmed Limited | Cushion for patient interface |
US8555885B2 (en) | 2005-01-12 | 2013-10-15 | Resmed Limited | Cushion for patient interface |
US8567404B2 (en) | 2005-01-12 | 2013-10-29 | Resmed Limited | Cushion for patient interface |
US8550081B2 (en) | 2005-01-12 | 2013-10-08 | Resmed Limited | Cushion for patient interface |
US8613281B2 (en) | 2005-01-12 | 2013-12-24 | Resmed Limited | Cushion for patient interface |
US8578935B2 (en) | 2005-01-12 | 2013-11-12 | Resmed Limited | Cushion for patient interface |
US8573214B2 (en) | 2005-01-12 | 2013-11-05 | Resmed Limited | Cushion for patient interface |
US8573213B2 (en) | 2005-01-12 | 2013-11-05 | Resmed Limited | Cushion for patient interface |
US8944061B2 (en) | 2005-10-14 | 2015-02-03 | Resmed Limited | Cushion to frame assembly mechanism |
US11833305B2 (en) | 2005-10-14 | 2023-12-05 | ResMed Pty Ltd | Cushion/frame assembly for a patient interface |
US10434273B2 (en) | 2005-10-14 | 2019-10-08 | ResMed Pty Ltd | Cushion to frame assembly mechanism |
US10137270B2 (en) | 2005-10-14 | 2018-11-27 | Resmed Limited | Cushion to frame assembly mechanism |
US11369765B2 (en) | 2005-10-14 | 2022-06-28 | ResMed Pty Ltd | Cushion to frame assembly mechanism |
US11529487B2 (en) | 2005-10-14 | 2022-12-20 | ResMed Pty Ltd | Cushion to frame assembly mechanism |
US11633564B2 (en) | 2005-10-14 | 2023-04-25 | ResMed Pty Ltd | Cushion to frame assembly mechanism |
US9381316B2 (en) | 2005-10-25 | 2016-07-05 | Resmed Limited | Interchangeable mask assembly |
US9962510B2 (en) | 2005-10-25 | 2018-05-08 | Resmed Limited | Respiratory mask assembly |
US11890418B2 (en) | 2005-10-25 | 2024-02-06 | ResMed Pty Ltd | Interchangeable mask assembly |
US11052211B2 (en) | 2005-10-25 | 2021-07-06 | ResMed Pty Ltd | Interchangeable mask assembly |
US10183138B2 (en) | 2005-10-25 | 2019-01-22 | Resmed Limited | Interchangeable mask assembly |
US11596757B2 (en) | 2005-10-25 | 2023-03-07 | ResMed Pty Ltd | Interchangeable mask assembly |
US20080066761A1 (en) * | 2006-09-18 | 2008-03-20 | Invacare Corporation | Breathing mask |
US8028698B2 (en) | 2006-09-18 | 2011-10-04 | Invacare Corporation | Breathing mask |
US8517023B2 (en) | 2007-01-30 | 2013-08-27 | Resmed Limited | Mask system with interchangeable headgear connectors |
US8960196B2 (en) | 2007-01-30 | 2015-02-24 | Resmed Limited | Mask system with interchangeable headgear connectors |
US10864342B2 (en) | 2007-01-30 | 2020-12-15 | ResMed Pty Ltd | Mask with removable headgear connector |
US9937315B2 (en) | 2007-01-30 | 2018-04-10 | Resmed Limited | Mask with removable headgear connector |
US10195384B2 (en) | 2007-04-19 | 2019-02-05 | Resmed Limited | Cushion and cushion to frame assembly mechanism for patient interface |
US8869797B2 (en) | 2007-04-19 | 2014-10-28 | Resmed Limited | Cushion and cushion to frame assembly mechanism for patient interface |
US20080257354A1 (en) * | 2007-04-19 | 2008-10-23 | Resmed Limited | Cushion and cushion to frame assembly mechanism for patient interface |
US9770568B2 (en) | 2008-03-04 | 2017-09-26 | Resmed Limited | Mask system with snap-fit shroud |
US8522784B2 (en) | 2008-03-04 | 2013-09-03 | Resmed Limited | Mask system |
US11305085B2 (en) | 2008-03-04 | 2022-04-19 | ResMed Pty Ltd | Mask system with snap-fit shroud |
US11331447B2 (en) | 2008-03-04 | 2022-05-17 | ResMed Pty Ltd | Mask system with snap-fit shroud |
US8550084B2 (en) | 2008-03-04 | 2013-10-08 | Resmed Limited | Mask system |
US11395893B2 (en) | 2008-03-04 | 2022-07-26 | ResMed Pty Ltd | Mask system with snap-fit shroud |
US9119931B2 (en) | 2008-03-04 | 2015-09-01 | Resmed Limited | Mask system |
US11529488B2 (en) | 2008-03-04 | 2022-12-20 | ResMed Pty Ltd | Mask system with snap-fit shroud |
US9757533B2 (en) | 2008-03-04 | 2017-09-12 | Resmed Limited | Mask system with snap-fit shroud |
US11077274B2 (en) | 2008-03-04 | 2021-08-03 | ResMed Pty Ltd | Mask system with snap-fit shroud |
US11529486B2 (en) | 2008-03-04 | 2022-12-20 | ResMed Pty Ltd | Mask system with shroud having extended headgear connector arms |
US8528561B2 (en) | 2008-03-04 | 2013-09-10 | Resmed Limited | Mask system |
US10751496B2 (en) | 2008-03-04 | 2020-08-25 | ResMed Pty Ltd | Mask system with shroud |
US9950131B2 (en) | 2008-03-04 | 2018-04-24 | Resmed Limited | Mask system with snap-fit shroud |
US9962511B2 (en) | 2008-03-04 | 2018-05-08 | Resmed Limited | Mask system with snap-fit shroud |
US11833277B2 (en) | 2008-03-04 | 2023-12-05 | ResMed Pty Ltd | Mask system with snap-fit shroud |
US9027556B2 (en) | 2008-03-04 | 2015-05-12 | Resmed Limited | Mask system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3238943A (en) | Aid breathing system | |
US3739774A (en) | Respirators | |
US5078130A (en) | Personnel headgear enabling free breathing of ambient air or selective breathing from various sources | |
US4392490A (en) | Multiple outlet connecting means for self-contained positive pressure or demand regulated breathing apparatus | |
US3037501A (en) | Quick-donning breathing mask | |
US2887104A (en) | Mask to mask resuscitator | |
US4494538A (en) | Mask assembly | |
US4231359A (en) | Personal emergency breathing hood with nose blocking device | |
US4741332A (en) | Equipment for protecting personnel from contamination | |
US8276582B2 (en) | Respirator assembly | |
SE448064B (en) | RESPIRATORY PROTECTION Mask WITH INTERNAL HALF MASK | |
US771801A (en) | Smoke-protector. | |
JPS61222462A (en) | Respiration protecting mask | |
CN206525621U (en) | A kind of emergency rescue firefighting helmet | |
US20210121649A1 (en) | Portable rebreathing system with staged addition of oxygen enrichment | |
GB2203050A (en) | Respirator | |
US2882896A (en) | Breathing apparatus | |
US2887105A (en) | Mask to mask resuscitator | |
EP0325959A2 (en) | Safety helmet | |
US1695170A (en) | Respirator | |
US2398076A (en) | Aviation mask | |
US3467094A (en) | Oxygen-isolation and overboard-dumping system | |
GB2209123A (en) | Breathing apparatus | |
US2323198A (en) | Aviation mask | |
CN206525620U (en) | A kind of emergency rescue firefighting helmet |