US3315674A - Filter mask facelet - Google Patents

Filter mask facelet Download PDF

Info

Publication number
US3315674A
US3315674A US421435A US42143564A US3315674A US 3315674 A US3315674 A US 3315674A US 421435 A US421435 A US 421435A US 42143564 A US42143564 A US 42143564A US 3315674 A US3315674 A US 3315674A
Authority
US
United States
Prior art keywords
facelet
face
mask
rim
nose
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
Application number
US421435A
Inventor
Bloom Aaron
John D Olt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Scott Technologies Inc
Original Assignee
Sierra Engineering Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sierra Engineering Co filed Critical Sierra Engineering Co
Priority to US421435A priority Critical patent/US3315674A/en
Application granted granted Critical
Publication of US3315674A publication Critical patent/US3315674A/en
Assigned to CAPTECH INC. reassignment CAPTECH INC. NUNC PRO TUNC ASSIGNMENT (SEE DOCUMENT FOR DETAILS). 7-31-69 Assignors: SIERRA ENGINEERING CO.
Assigned to SCOTT AVIATION-SIERRA PRODUCTS, INC., reassignment SCOTT AVIATION-SIERRA PRODUCTS, INC., CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). 11-10-78 Assignors: TEXACE CORPORATION
Assigned to TEXACE CORPORATION A CORP. OF TEX. reassignment TEXACE CORPORATION A CORP. OF TEX. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). 11-10-78 Assignors: CAPTECH INC.
Assigned to FIGGIE INTERNATIONAL INC., A CORP. OF OHIO reassignment FIGGIE INTERNATIONAL INC., A CORP. OF OHIO ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SCOTT AVIATION-SIERRA PRODUCTS, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices

Definitions

  • the invention relates to breathing masks, such for example as those worn by the crewmen of aircraft and is especially related to the provision of sanitary means to avoid contamination of one crewman by the respiratory ailment which another crewman might be afiiicted with.
  • the cabin and cockpit are customarily pressurized so that the crewmen of the airplane do not habitually wear breathing masks on their faces.
  • a suitable breathing mask is supplied for each individual crewman, which may either hang on the crewmans neck, or pursuant to more recent regulations may be suspended from the interior of the cockpit so that it can be quickly grabbed and donned should there be a failure of cabin pressure for any reason.
  • Another object of the invention is to provide a new and improved filter mask facelet which offers no objectionable resistance to the flow of air into and out of the mask while it is in place and which also will not interfere with operation of the conventional breathing valve or microphone fixture.
  • Still another object of the invention is to provide a new and improved filter mask facelet and mask combination wherein the facelet is substantially self-sustaining both in place on the mask and prior to placement in the mask so that it clears not only the nose and mouth of the wearer but also the breathing valve and microphone equipment.
  • the objects of the invention also include the provision of a filter mask facelet which is sufiiciently firm so as to be capable of holding itself in position on the face piece of the mask when not in use without employment of auxiliary holding means.
  • the invention consists in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained, as hereinafter set forth, pointed out in the appended claims and illustrated in the accompanying drawings.
  • FIGURE 1 is a side elevational view of a mask assem bly including the filter mask facelet in position on a crewman.
  • FIGURE 2 is a plan view of the filter mask facelet alone looking at the face contacting side thereof.
  • FIGURE 3 is a fragmentary longitudinal sectional view of the face contacting portion of a typical face piece provided with the filter mask facelet in position, taken for example, at the line 3-3 of FIGURE 2.
  • FIGURE 4 is a fragmentary cross-sectional view of the facelet material drawn to an enlarged scale.
  • a mask assembly of substantially conventional form incorporating a formed face piece 10 having a rim 11 to which is tied a relatively yieldable sealing bead 12.
  • rim 11 has a shape and contour approximating the shape and contour of the face around the line of contact of the bead 12 with the face.
  • the bead may be formed with an inside resilient mass 13 of material held in place by a flexible jacket 14. Edges 15 and 16 of the flexible jacket are bound to the rim 11 and an out-turned portion 17 thereof by some appropriate conventional adhesive.
  • an ear piece 19 having a head strap 20 and a neck strap 21 fastened respectively to the. top and bottom of the ear piece.
  • a mask strap 22 including an adjustable buckle 23 is fastened at one end to the ear piece 19 and at the other end to the face piece 10.
  • An oxygen supply hose 25 is connected to a valve housing 26 on the face piece, the valve housing being one containing a conventional breathing valve device.
  • a microphone fixture 27 mounted upon the face piece is a microphone fixture 27 to which a Wire lead 28 is connected so that a microphone (not shown) within the face piece can be connected to the communication system.
  • a mask facelet is indicated generally by the reference character 36.
  • the mask facelet is constructed of felted fibers which in final form can be molded so as to be capable of retaining a selected shape and configuration such as that shown in FIGURES 2 and 3.
  • the facelet may be described as including a central portion 31 dished so as to provide a chamber 32 large enough to accommodate the forward portion of the face of the crewman.
  • a narrow section 33 of the chamber 32 is sufficient to accommodate the nose whereas the lower portion, being larger, is sufficient to accommodate the mouth.
  • Around the edge of the facelet 30 is a large rounded rim 34 which has substantially a shape and contour complementary with respect to the bead 12.
  • the rim 34 has a pocket 35 extending through the entire perimeter the pocket 35 being open toward the bead 12 to permit application of the rim 34 of the facelet over the bead. Throughout some portions of the perimeter the rim 34 extends not over but also around the bead so that the facelet is fastened to the bead with relative security sufficient so that it cannot be easily knocked off when not in use.
  • the character of the material forming the facelet 30 be sufiiciently pervious to the flow of 3 air or oxygen so that the resistance to fiow when the mask is in place on the face is virtually negligible.
  • the material may be formed of multiple layers 36, 37, and 38 for example of relatievly long and somewhat resilient fibers of some appropriate synthetic plastic resinous material or other satisfactory natural fiber.
  • the fibers of respectively adjacent layers can be laid in a somewhat cross-wise relationship one with respect to the other and so that the outermost fibers of adjacent layers mingle with each other and interlock to a degree when the respective layers are pressed together to form a composite sheet.
  • Forming the sheet material in this fashion helps provide a degree of stiffness sufficiently so that the mask facelet, once molded into a form adapted to fit inside of the face plate, will hold the form as long as needed.
  • the facelet can be constructed very inexpensively sufficient so that each facelet in turn can be disposed of after it has served one adjustment.
  • the face piece will be provided with such a facelet in place and thereby ready for immediate use for adjusting to the face of the crewman. Should this not be feasible packages of appropriate facelets can be stored conveniently and applied over the bead of the mask when needed. Moreover the material of the facelet is such that it need not be precisely molded to fit each individual face piece.
  • the rim 34 and pocket 35 of the facelet can be molded sufficiently around any one of a number of different types of beads 12 and, the central portion 31 maintained sufficiently clear of the face to accommodate many different types of nose structure and different locations of microphone and breathing valve apparatus within the face piece.
  • a filter facelet comprising a sheet filter medium comprising multiple layers of separately felted fibers pervious to the passage of air therethrough at negligible resistance, a rim on said facelet adapted to conform with the outline and contour of the sealing bead, said rim having a substantially continuous self-sustaining pocket having a wall surrounding said sealing head, said facelet having an opening on one side, said facelet having a selfsustaining mid portion extending toward the open side of said pocket to positions clear of the wearers nose and mouth.
  • a sanitary mask testing assembly comprising a formed face piece for application to the face of a wearer in position covering the nose and mouth, a face fitting rim on the face piece and a relatively yieldable sealing bead on said rim for sealing engagement with the face when the mask is in position thereon, breathing valve means at a foreward portion thereof and a microphone fixture adjacent said valve means, the combination of a filter facelet comprising a sheet filter medium pervious to the passage of air therethrough at negligible resistance, a rim on said facelet in conformance with the outline and contour of said sealing head, said rim having a substantially continuous pocket therein with an opening on one side mounting the facelet in position in the face piece, said facelet having a self-sustaining mid portion extending toward the open side of said pocket to positions clear of the wearers nose and mouth and clear of the breathing valve and microphone.
  • a sanitary mask testing assembly comprising a formed face piece for application to the face of a wearer in position covering the nose and mouth, a face fitting rim on the face piece and a relatively yieldable sealing bead on said rim for sealing engagement with the face when the mask is in position thereon, breathing valve means at a foreward portion of the face piece and a microphone fixture adjacent said valve means, the combination of a filter facelet comprising a sheet filter medium having a thickness of from about 4, to 7 inch, said sheet comprising relatively long semi-resilient fibers in multiple layers of separately felted fibers wherein surface fibers on respectively adjacent faces of adjacent layers are intermingled and interlocked, said sheet being pervious to the passage of air therethrough at negligible resistance, a rim on said facelet in conformance with the outline and contour of said sealing head, said rim having a substantially continuous pocket therein with an opening on one side and with a wall surrounding approximately half the exterior of the sealing bead whereby to retain the facelet having a self-sustaining mid portion

Description

April 25, 1967 A. BLOOM ETAL FILTER MASK FACELET Filed Dec. 28, 1964 United States Patent 3,315,674 FILTER MASK FACELET Aaron Bloom, Pasadena, and John D. Olt, Sierra Madre, Calif., assignors to Sierra Engineering Company, Sierra Madre, Caiifl, a corporation of California Filed Dec. 28, 1964, Ser. No. 421,435 3 Claims. (Cl. 128l46.4)
The invention relates to breathing masks, such for example as those worn by the crewmen of aircraft and is especially related to the provision of sanitary means to avoid contamination of one crewman by the respiratory ailment which another crewman might be afiiicted with.
In the handling of high-flying airplanes the cabin and cockpit are customarily pressurized so that the crewmen of the airplane do not habitually wear breathing masks on their faces. As a necessary precaution however, a suitable breathing mask is supplied for each individual crewman, which may either hang on the crewmans neck, or pursuant to more recent regulations may be suspended from the interior of the cockpit so that it can be quickly grabbed and donned should there be a failure of cabin pressure for any reason.
On those occasions particularly where the mask may be suspended in the cockpit there is no reason to change masks everytime the crew changes because with adjustable harness the mask for one crewman may be readily readjusted to fit a succeeding crewman in the change of crew where facial characteristics differ.
It is however, quite usual for crewmen to be afiiicted with head colds or other respiratory ailments which is desirable not to pass from one person to another. Since also it is necessary each time a crewman when he takes his position in the cockpit to be certain that the mask at his disposal is carefully adjusted to his face he must don the mask upon arriving in the cockpit and make the adjustment. This of course is the same mask which may previously have been donned and adjusted by the preceding crewman who may have been afiiicted with a respiratory ailment.
Since the adjustment must be made while the oxygen supply is open to the mask and the radio equipment is in place, these conditions must be maintained irrespective of what sanitary device is employed to prevent contamination of the succeeding crewmen.
It is therefore among the objects of the invention to provide a new and improved filter mask facelet which is capable of protecting each crewman as he adjusts the mask to fit his face after the mask has previously :been used by another.
Another object of the invention is to provide a new and improved filter mask facelet which offers no objectionable resistance to the flow of air into and out of the mask while it is in place and which also will not interfere with operation of the conventional breathing valve or microphone fixture.
Still another object of the invention is to provide a new and improved filter mask facelet and mask combination wherein the facelet is substantially self-sustaining both in place on the mask and prior to placement in the mask so that it clears not only the nose and mouth of the wearer but also the breathing valve and microphone equipment.
Further included among the objects of the invention is to provide a new and improved filter mask facelet which is extremely light in weight, substantially pervious to offer no objectionable obstruction to the flow of air or gas, which can not damage in any way the breathing or microphone equipment in the mask and which is sufficiently inexpensive to be freely disposable after each use.
The objects of the invention also include the provision of a filter mask facelet which is sufiiciently firm so as to be capable of holding itself in position on the face piece of the mask when not in use without employment of auxiliary holding means.
With these and other objects in view, the invention consists in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained, as hereinafter set forth, pointed out in the appended claims and illustrated in the accompanying drawings.
In the drawings:
FIGURE 1 is a side elevational view of a mask assem bly including the filter mask facelet in position on a crewman.
FIGURE 2 is a plan view of the filter mask facelet alone looking at the face contacting side thereof.
FIGURE 3 is a fragmentary longitudinal sectional view of the face contacting portion of a typical face piece provided with the filter mask facelet in position, taken for example, at the line 3-3 of FIGURE 2.
FIGURE 4 is a fragmentary cross-sectional view of the facelet material drawn to an enlarged scale.
In an embodiment of the invention which has been chosen for the purpose of illustration there is shown a mask assembly of substantially conventional form incorporating a formed face piece 10 having a rim 11 to which is tied a relatively yieldable sealing bead 12. The
rim 11 has a shape and contour approximating the shape and contour of the face around the line of contact of the bead 12 with the face. To make certain of an appropriate seal the bead may be formed with an inside resilient mass 13 of material held in place by a flexible jacket 14. Edges 15 and 16 of the flexible jacket are bound to the rim 11 and an out-turned portion 17 thereof by some appropriate conventional adhesive.
To mount the face piece upon a head 18 of a crewman there may be provided an ear piece 19 having a head strap 20 and a neck strap 21 fastened respectively to the. top and bottom of the ear piece. A mask strap 22 including an adjustable buckle 23 is fastened at one end to the ear piece 19 and at the other end to the face piece 10. An oxygen supply hose 25 is connected to a valve housing 26 on the face piece, the valve housing being one containing a conventional breathing valve device. Also mounted upon the face piece is a microphone fixture 27 to which a Wire lead 28 is connected so that a microphone (not shown) within the face piece can be connected to the communication system.
A mask facelet is indicated generally by the reference character 36. The mask facelet is constructed of felted fibers which in final form can be molded so as to be capable of retaining a selected shape and configuration such as that shown in FIGURES 2 and 3. The facelet may be described as including a central portion 31 dished so as to provide a chamber 32 large enough to accommodate the forward portion of the face of the crewman. A narrow section 33 of the chamber 32 is sufficient to accommodate the nose whereas the lower portion, being larger, is sufficient to accommodate the mouth. Around the edge of the facelet 30 is a large rounded rim 34 which has substantially a shape and contour complementary with respect to the bead 12. The rim 34 has a pocket 35 extending through the entire perimeter the pocket 35 being open toward the bead 12 to permit application of the rim 34 of the facelet over the bead. Throughout some portions of the perimeter the rim 34 extends not over but also around the bead so that the facelet is fastened to the bead with relative security sufficient so that it cannot be easily knocked off when not in use.
It is important that the character of the material forming the facelet 30 be sufiiciently pervious to the flow of 3 air or oxygen so that the resistance to fiow when the mask is in place on the face is virtually negligible.
To make certain of a facelet of satisfactory structural characteristics the material may be formed of multiple layers 36, 37, and 38 for example of relatievly long and somewhat resilient fibers of some appropriate synthetic plastic resinous material or other satisfactory natural fiber. By felting the individual layers of long and extremely fine fiber the fibers of respectively adjacent layers can be laid in a somewhat cross-wise relationship one with respect to the other and so that the outermost fibers of adjacent layers mingle with each other and interlock to a degree when the respective layers are pressed together to form a composite sheet. Forming the sheet material in this fashion helps provide a degree of stiffness sufficiently so that the mask facelet, once molded into a form adapted to fit inside of the face plate, will hold the form as long as needed. This is of assistance not only in being able to keep the facelet in position on the face piece when not in use but also keeps keep the central portion 31 distended away from the nose and mouth. The construction described is also productive of a sheet material so light and yielding that should the bowed area ofthe central portion 31 be pushed into contact with one or another of the parts of the valve assembly in the valve housing 26 or the parts of the microphone fixture 27 no damage will result to either.
Moreover by constructing the preformed facelet in the form and more particularly of the material suggested, the facelet can be constructed very inexpensively sufficient so that each facelet in turn can be disposed of after it has served one adjustment.
Normally the face piece will be provided with such a facelet in place and thereby ready for immediate use for adjusting to the face of the crewman. Should this not be feasible packages of appropriate facelets can be stored conveniently and applied over the bead of the mask when needed. Moreover the material of the facelet is such that it need not be precisely molded to fit each individual face piece. The rim 34 and pocket 35 of the facelet can be molded sufficiently around any one of a number of different types of beads 12 and, the central portion 31 maintained sufficiently clear of the face to accommodate many different types of nose structure and different locations of microphone and breathing valve apparatus within the face piece.
Having described the invention, what is claimed as new and in support of Letters Patent is:
1. In a mask face piece for application to the face of a wearer in a position covering the nose and mouth, a face fitting rim on the face piece and a relatively yieldable sealing head on said rim for sealing engagement with the face when the mask is in position thereon, the combination of a filter facelet comprising a sheet filter medium comprising multiple layers of separately felted fibers pervious to the passage of air therethrough at negligible resistance, a rim on said facelet adapted to conform with the outline and contour of the sealing bead, said rim having a substantially continuous self-sustaining pocket having a wall surrounding said sealing head, said facelet having an opening on one side, said facelet having a selfsustaining mid portion extending toward the open side of said pocket to positions clear of the wearers nose and mouth.
2, In a sanitary mask testing assembly comprising a formed face piece for application to the face of a wearer in position covering the nose and mouth, a face fitting rim on the face piece and a relatively yieldable sealing bead on said rim for sealing engagement with the face when the mask is in position thereon, breathing valve means at a foreward portion thereof and a microphone fixture adjacent said valve means, the combination of a filter facelet comprising a sheet filter medium pervious to the passage of air therethrough at negligible resistance, a rim on said facelet in conformance with the outline and contour of said sealing head, said rim having a substantially continuous pocket therein with an opening on one side mounting the facelet in position in the face piece, said facelet having a self-sustaining mid portion extending toward the open side of said pocket to positions clear of the wearers nose and mouth and clear of the breathing valve and microphone.
3. In a sanitary mask testing assembly comprising a formed face piece for application to the face of a wearer in position covering the nose and mouth, a face fitting rim on the face piece and a relatively yieldable sealing bead on said rim for sealing engagement with the face when the mask is in position thereon, breathing valve means at a foreward portion of the face piece and a microphone fixture adjacent said valve means, the combination of a filter facelet comprising a sheet filter medium having a thickness of from about 4, to 7 inch, said sheet comprising relatively long semi-resilient fibers in multiple layers of separately felted fibers wherein surface fibers on respectively adjacent faces of adjacent layers are intermingled and interlocked, said sheet being pervious to the passage of air therethrough at negligible resistance, a rim on said facelet in conformance with the outline and contour of said sealing head, said rim having a substantially continuous pocket therein with an opening on one side and with a wall surrounding approximately half the exterior of the sealing bead whereby to retain the facelet having a self-sustaining mid portion extending toward the open side of said pocket to positions clear of the wearers nose and mouth and clear of the breathing valve and microphone.
References Cited by the Examiner UNITED STATES PATENTS 2,681,060 6/1954 Swindell 128-146 2,997,550 8/1961 Traller 128-141.l 3,169,171 2/1965 Wachs et al 179-185 3,220,409 11/1965 Liloia et al 128-146 RICHARD A. GAUDET, Primary Examiner. K. L. HOWELL, Assistant Examiner.

Claims (1)

1. IN A MASK FACE PIECE FOR APPLICATION TO THE FACE OF A WEARER IN A POSITION COVERING THE NOSE AND MOUTH, A FACE FITTING RIM ON THE FACE PIECE AND A RELATIVELY YIELDABLE SEALING BEAD ON SAID RIM FOR SEALING ENGAGEMENT WITH THE FACE WHEN THE MASK IS IN POSITION THEREON, THE COMBINATION OF A FILTER FACELET COMPRISING A SHEET FILTER MEDIUM COMPRISING MULTIPLE LAYERS OF SEPARATELY FELTED FIBERS PERVIOUS TO THE PASSAGE OF AIR THERETHROUGH AT NEGLIGIBLE RESISTANCE, A RIM ON SAID FACELET ADAPTED TO CONFORM WITH THE OUTLINE AND CONTOUR OF THE SEALING BEAD, SAID RIM HAVING A SUBSTANTIALLY CONTINUOUS SELF-SUSTAINING POCKET HAVING A WALL SURROUNDING SAID SEALING BEAD, SAID FACELET HAVING AN OPENING ON ONE SIDE, SAID FACELET HAVING A SELFSUSTAINING MID PORTION EXTENDING TOWARD THE OPEN SIDE OF SAID POCKET TO POSITIONS CLEAR OF THE WEARER''S NOSE AND MOUTH.
US421435A 1964-12-28 1964-12-28 Filter mask facelet Expired - Lifetime US3315674A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US421435A US3315674A (en) 1964-12-28 1964-12-28 Filter mask facelet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US421435A US3315674A (en) 1964-12-28 1964-12-28 Filter mask facelet

Publications (1)

Publication Number Publication Date
US3315674A true US3315674A (en) 1967-04-25

Family

ID=23670497

Family Applications (1)

Application Number Title Priority Date Filing Date
US421435A Expired - Lifetime US3315674A (en) 1964-12-28 1964-12-28 Filter mask facelet

Country Status (1)

Country Link
US (1) US3315674A (en)

Cited By (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4815456A (en) * 1987-07-20 1989-03-28 Cosentino Leonard J Hygienic device
WO1990002582A1 (en) * 1988-09-14 1990-03-22 Puritan-Bennett Corporation Crew oxygen mask and hose stowage unit
USH1361H (en) * 1992-05-06 1994-10-04 The United States Of America As Represented By The Secretary Of The Army Softshell protective mask
US5452712A (en) * 1995-01-13 1995-09-26 Richardson; James M. Disposable smoke hood with mask and dual strap arrangement
EP0747078A2 (en) * 1995-06-06 1996-12-11 RESPIRONICS Inc. Nasal mask
US5896857A (en) * 1996-12-20 1999-04-27 Resmed Limited Valve for use in a gas delivery system
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
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
US6412486B1 (en) 1999-07-09 2002-07-02 Leonard W. Glass Disposable filtering face mask and method of making same
US20020166557A1 (en) * 2001-05-09 2002-11-14 David Cooper Mask with a built-in microphone
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
US6561190B1 (en) 1997-02-10 2003-05-13 Resmed Limited Mask and a vent assembly therefor
US6561191B1 (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
FR2849782A1 (en) * 2003-01-15 2004-07-16 Robert Schegerin Facial mask for psychological protection of bearer e.g. civil plane pilot, has thin film of hygiene protection for insulating skin of bearer from semi-flexible lip of mask
US20040182398A1 (en) * 2003-03-22 2004-09-23 Tom Sprinkle Nasal mask
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
US20050056286A1 (en) * 2003-09-17 2005-03-17 Huddart Brett John Breathable respiratory mask
US20050139219A1 (en) * 1999-03-29 2005-06-30 Resmed Limited Forehead support for facial mask
US20050211252A1 (en) * 2002-01-17 2005-09-29 Map Medizin-Technologie Gmbh Breathing mask arrangement and a forehead support device for same
US20050241644A1 (en) * 2004-04-09 2005-11-03 Resmed Limited Nasal assembly
EP1624937A1 (en) * 2003-05-16 2006-02-15 Intertechnique Respirator mask with hygienic protection
US20060032504A1 (en) * 2004-06-03 2006-02-16 David Burton Adaptable breathing mask
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
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
US20120199130A1 (en) * 2009-10-21 2012-08-09 Guillaume Euvrard Hygienic mask for aircraft crewmember and a mask assembly comprising the hygienic mask
US8353294B2 (en) 2004-06-16 2013-01-15 Resmed Limited Respiratory mask assembly
US8479776B2 (en) 2011-11-04 2013-07-09 Blue Gentian, Llc Expandable garden hose
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
US8757213B2 (en) 2011-11-04 2014-06-24 Blue Gentian, Llc Commercial hose
US8869797B2 (en) 2007-04-19 2014-10-28 Resmed Limited Cushion and cushion to frame assembly mechanism for patient interface
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
USD823454S1 (en) 2017-02-23 2018-07-17 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD823455S1 (en) 2017-02-23 2018-07-17 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD824020S1 (en) 2017-02-23 2018-07-24 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
US10174870B2 (en) 2011-11-04 2019-01-08 Telebrands Corp. Expandable and contractible garden hose
US10357627B2 (en) 2013-03-04 2019-07-23 Fisher & Paykel Healthcare Limited Patient interfaces with condensation reducing or compensating arrangements
US10518054B2 (en) 2014-08-25 2019-12-31 Fisher & Paykel Healthcare Limited Respiratory mask and related portions, components or sub-assemblies
US10603456B2 (en) 2011-04-15 2020-03-31 Fisher & Paykel Healthcare Limited Interface comprising a nasal sealing portion
US10668242B2 (en) 2013-04-26 2020-06-02 Fisher & Paykel Healthcare Limited Headgear for breathing mask
USD894394S1 (en) * 2020-05-12 2020-08-25 Shenzhen Aidiansheng Technology Co., Ltd. Breathing filter
US10828443B2 (en) 2011-04-15 2020-11-10 Fisher & Paykel Healthcare Limited Interface comprising a rolling nasal bridge portion
US10946155B2 (en) 2012-09-04 2021-03-16 Fisher & Paykel Healthcare Limited Valsalva mask
US11331447B2 (en) 2008-03-04 2022-05-17 ResMed Pty Ltd Mask system with snap-fit shroud
US11351323B2 (en) 2014-11-14 2022-06-07 Fisher & Paykel Healthcare Limited Patient interface for PAP therapy with rigid headgear connection elements
US11419999B2 (en) 2013-08-05 2022-08-23 Fisher & Paykel Healthcare Limited Seal for a patient interface, interface assemblies and aspects thereof
US11701486B2 (en) 2014-06-17 2023-07-18 Fisher & Paykel Healthcare Limited Patient interfaces

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2681060A (en) * 1952-03-10 1954-06-15 Melvin E Swindell Dust mask
US2997550A (en) * 1957-09-03 1961-08-22 Boeing Co Microphone mask
US3169171A (en) * 1962-07-17 1965-02-09 Stephen R Steinberg Disposable sanitary cover for telephones
US3220409A (en) * 1961-03-28 1965-11-30 Johnson & Johnson Face mask

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2681060A (en) * 1952-03-10 1954-06-15 Melvin E Swindell Dust mask
US2997550A (en) * 1957-09-03 1961-08-22 Boeing Co Microphone mask
US3220409A (en) * 1961-03-28 1965-11-30 Johnson & Johnson Face mask
US3169171A (en) * 1962-07-17 1965-02-09 Stephen R Steinberg Disposable sanitary cover for telephones

Cited By (248)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4815456A (en) * 1987-07-20 1989-03-28 Cosentino Leonard J Hygienic device
WO1990002582A1 (en) * 1988-09-14 1990-03-22 Puritan-Bennett Corporation Crew oxygen mask and hose stowage unit
USH1361H (en) * 1992-05-06 1994-10-04 The United States Of America As Represented By The Secretary Of The Army Softshell protective mask
US6123071A (en) * 1993-06-18 2000-09-26 Resmed Limited Facial masks for assisted respiration or CPAP
US5452712A (en) * 1995-01-13 1995-09-26 Richardson; James M. Disposable smoke hood with mask and dual strap arrangement
EP0747078A2 (en) * 1995-06-06 1996-12-11 RESPIRONICS Inc. Nasal mask
EP0747078A3 (en) * 1995-06-06 1997-07-30 Respironics Inc Nasal mask
US5724965A (en) * 1995-06-06 1998-03-10 Respironics Inc. Nasal mask
US9421339B2 (en) 1996-07-26 2016-08-23 Resmed Limited Patient interface
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
US7069933B2 (en) 1996-07-26 2006-07-04 Resmed Limited Breathing mask and mask cushion therefor
US9463295B2 (en) 1996-07-26 2016-10-11 Resmed Limited Mask and mask cushion therefor
US6112746A (en) * 1996-07-26 2000-09-05 Resmed Limited Nasal mask and mask cushion therefor
US6701927B2 (en) 1996-07-26 2004-03-09 Resmed Limited Full-face mask and mask cushion therefor
US20070107735A1 (en) * 1996-07-26 2007-05-17 Resmed Limited Mask
US8813748B2 (en) 1996-07-26 2014-08-26 Resmed Limited Full-face mask and mask cushion therefor
US6357441B1 (en) 1996-07-26 2002-03-19 Resmed Limited Nasal mask and mask cushion therefor
US6871649B2 (en) 1996-07-26 2005-03-29 Resmed Limited Nasal mask cushion assembly
US7243651B2 (en) 1996-07-26 2007-07-17 Resmed Limited Cushion and mask therefor
US7178527B2 (en) 1996-07-26 2007-02-20 Resmed Limited Nasal mask and mask cushion therefor
US20050022818A1 (en) * 1996-07-26 2005-02-03 Resmed Limited Cushion and mask therefor
US8522783B2 (en) 1996-07-26 2013-09-03 Resmed Limited Cushion and mask therefor
US6513526B2 (en) 1996-07-26 2003-02-04 Resmed Limited Full-face mask and mask cushion therefor
US8636006B2 (en) 1996-07-26 2014-01-28 Resmed Limited Mask
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)
US8056561B2 (en) 1996-07-26 2011-11-15 Resmed Limited Full-face mask and mask cushion therefor
US20040094159A1 (en) * 1996-07-26 2004-05-20 Resmed Limited Breathing mask and mask cushion therefor
US6581602B2 (en) 1996-07-26 2003-06-24 Resmed Limited Nasal mask and mask cushion therefor
US6634358B2 (en) 1996-07-26 2003-10-21 Resmed Limited Nasal mask cushion assembly
US8997739B2 (en) 1996-10-16 2015-04-07 Resmed Limited Vent valve apparatus
US6006748A (en) * 1996-10-16 1999-12-28 Resmed Limited Vent valve apparatus
US7059325B2 (en) 1996-10-16 2006-06-13 Resmed Limited Vent assembly
US20050166923A1 (en) * 1996-10-16 2005-08-04 Resmed Limited Vent assembly
US6889692B2 (en) 1996-10-16 2005-05-10 Resmed Limited Vent valve assembly
US20060185674A1 (en) * 1996-10-16 2006-08-24 Resmed Limited Vent valve apparatus
US9770571B2 (en) 1996-10-16 2017-09-26 Resmed Limited Vent valve assembly
US6044844A (en) * 1996-12-02 2000-04-04 Resmed Limited Mask and harness assembly
US20070267021A1 (en) * 1996-12-02 2007-11-22 Resmed Limited Harness assembly for a nasal mask
US6494207B1 (en) * 1996-12-02 2002-12-17 Resmed Limited Harness assembly for a nasal mask
US7036508B2 (en) 1996-12-02 2006-05-02 Resmed Limited Harness assembly for a nasal mask
US6029660A (en) * 1996-12-12 2000-02-29 Resmed Limited Substance delivery apparatus
US5896857A (en) * 1996-12-20 1999-04-27 Resmed Limited Valve for use in a gas delivery system
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
US7845354B2 (en) 1997-02-10 2010-12-07 Resmed Limited Mask and vent assembly therefor
US8122886B2 (en) 1997-02-10 2012-02-28 Resmed Limited Respiratory mask assembly with vent
US7207335B2 (en) 1997-02-10 2007-04-24 Resmed Limited Mask and vent assembly therefor
US20070101998A1 (en) * 1997-02-10 2007-05-10 Resmed Limited Respiratory mask assembly with vent
US8826910B2 (en) 1997-02-10 2014-09-09 Resmed Limited Mask and vent assembly therefor
US8833371B2 (en) 1997-02-10 2014-09-16 Resmed Limited Mask and vent assembly therefor
USD435650S (en) * 1997-02-25 2000-12-26 Resmed Limited Combined nasal mask shell and cushion
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
USD807497S1 (en) 1998-01-16 2018-01-09 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
US6691708B2 (en) 1998-01-16 2004-02-17 Resmed Limited Forehead support for facial mask
US6119693A (en) * 1998-01-16 2000-09-19 Resmed Limited Forehead support for facial mask
US6997188B2 (en) 1998-01-16 2006-02-14 Resmed Limited Forehead support for facial mask
US7882837B2 (en) 1998-01-16 2011-02-08 Resmed Limited Forehead support for facial 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
US6557556B2 (en) 1998-01-16 2003-05-06 Resmed Limited Forehead support for facial mask
US20040060561A1 (en) * 1998-01-16 2004-04-01 Resmed Limited Forehead support for facial mask
USD782028S1 (en) 1998-01-16 2017-03-21 Resmed Limited Pad for forehead support
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
US7472704B2 (en) 1999-03-29 2009-01-06 Resmed Limited Forehead support for facial mask
US20050139219A1 (en) * 1999-03-29 2005-06-30 Resmed Limited Forehead support for 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
US20090114231A1 (en) * 1999-03-29 2009-05-07 Resmed Limited Forehead support for a facial mask
US7610916B2 (en) 1999-06-18 2009-11-03 Resmed Limited Forehead support for facial mask
US6860269B2 (en) 1999-06-18 2005-03-01 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
US8186348B2 (en) 1999-06-18 2012-05-29 Resmed Limited Forehead support for facial mask
US20100012129A1 (en) * 1999-06-18 2010-01-21 Resmed Limited Forehead support for facial mask
US6412486B1 (en) 1999-07-09 2002-07-02 Leonard W. Glass Disposable filtering face mask and method of making same
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
US8528558B2 (en) 2000-05-15 2013-09-10 Resmed Limited Respiratory mask having washout vent and gas washout vent assembly for a respiratory 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
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
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
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
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
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
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
US20020166557A1 (en) * 2001-05-09 2002-11-14 David Cooper Mask with a built-in microphone
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
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
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
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
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
US20060191538A1 (en) * 2001-10-22 2006-08-31 Map Medizin-Technologie Gmbh Application device for breathing mask arrangement
US8875710B2 (en) 2001-10-22 2014-11-04 Resmed R&D Germany Gmbh Application device for a breathing mask arrangement
US10058671B2 (en) 2001-10-22 2018-08-28 Resmed R&D Germany Gmbh Application device for a 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
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
US7967014B2 (en) 2001-10-22 2011-06-28 Map Medizin-Technologie Gmbh Application device for breathing mask arrangement
US7320323B2 (en) 2001-10-22 2008-01-22 Map Medizin-Technologie Gmbh Breathing mask device and application device and frontal support device thereof
US8402972B2 (en) 2002-01-17 2013-03-26 Resmed R&D Germany 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
US7654263B2 (en) 2002-01-17 2010-02-02 Map Medizin-Technologie 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
US20050211252A1 (en) * 2002-01-17 2005-09-29 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
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
US10500365B2 (en) 2002-12-06 2019-12-10 Fisher & Paykel Healthcare Limited Respiratory interface with elbow
US9802021B2 (en) 2002-12-06 2017-10-31 Fisher & Paykel Healthcare Limited Mouthpiece
US11471639B2 (en) 2002-12-06 2022-10-18 Fisher & Paykel Healthcare Limited Respiratory interface with elbow
US9956369B2 (en) 2002-12-06 2018-05-01 Fisher & Paykel Healthcare Limited Mouthpiece
FR2849782A1 (en) * 2003-01-15 2004-07-16 Robert Schegerin Facial mask for psychological protection of bearer e.g. civil plane pilot, has thin film of hygiene protection for insulating skin of bearer from semi-flexible lip of mask
US7621274B2 (en) 2003-03-22 2009-11-24 Invacare Corporation Nasal mask
US20040182398A1 (en) * 2003-03-22 2004-09-23 Tom Sprinkle Nasal mask
US20080092899A1 (en) * 2003-04-10 2008-04-24 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
US20050005940A1 (en) * 2003-04-10 2005-01-13 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
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
US7503327B2 (en) 2003-04-10 2009-03-17 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
US8794239B2 (en) 2003-04-10 2014-08-05 Resmed Limited Mask with integral cushion and forehead piece
US9895503B2 (en) 2003-05-02 2018-02-20 Resmed Limited Mask system
US8505535B2 (en) 2003-05-02 2013-08-13 Resmed Limited Mask system
US20050022820A1 (en) * 2003-05-05 2005-02-03 Kwok Philip R. Forehead support for facial mask
US7406965B2 (en) 2003-05-05 2008-08-05 Resmed Limited Forehead support for facial mask
EP1624937A1 (en) * 2003-05-16 2006-02-15 Intertechnique Respirator mask with hygienic protection
US20060130845A1 (en) * 2003-05-16 2006-06-22 Robert Schegerin Respirator mask with hygienic protection
EP1624937B1 (en) * 2003-05-16 2018-04-25 Zodiac Aerotechnics Respirator mask with hygienic protection
USRE44545E1 (en) 2003-05-16 2013-10-22 Intertechnique Respirator mask with hygienic protection
US7575006B2 (en) 2003-05-16 2009-08-18 Intertechnique Respirator mask with hygienic protection
US11213646B2 (en) 2003-09-17 2022-01-04 Fisher & Paykel Healthcare Limited Breathable respiratory mask
US8997743B2 (en) * 2003-09-17 2015-04-07 Fisher & Paykel Healthcare Limited Breathable respiratory mask
US20050056286A1 (en) * 2003-09-17 2005-03-17 Huddart Brett John Breathable respiratory mask
US10357625B2 (en) 2003-09-17 2019-07-23 Fisher & Paykel Healthcare Limited Breathable respiratory mask
US10842957B2 (en) 2004-04-09 2020-11-24 ResMed Pty Ltd Nasal assembly
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
US9895505B2 (en) 2004-04-09 2018-02-20 Resmed Limited Nasal assembly
US20060032504A1 (en) * 2004-06-03 2006-02-16 David Burton Adaptable breathing mask
US7992560B2 (en) * 2004-06-03 2011-08-09 Compumedics Limited Adaptable breathing mask
US10039893B2 (en) 2004-06-16 2018-08-07 Resmed Limited Respiratory mask assembly
US11529489B2 (en) 2004-06-16 2022-12-20 ResMed Pty Ltd Cushion for a respiratory mask assembly
US8353294B2 (en) 2004-06-16 2013-01-15 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
US9375545B2 (en) 2004-06-16 2016-06-28 Resmed Limited Respiratory mask assembly
US8567404B2 (en) 2005-01-12 2013-10-29 Resmed Limited Cushion for patient interface
US8555885B2 (en) 2005-01-12 2013-10-15 Resmed Limited Cushion for patient interface
US10456544B2 (en) 2005-01-12 2019-10-29 ResMed Pty Ltd Cushion for patient interface
US8550083B2 (en) 2005-01-12 2013-10-08 Resmed Limited Cushion for patient interface
US8550081B2 (en) 2005-01-12 2013-10-08 Resmed Limited Cushion for patient interface
US8616211B2 (en) 2005-01-12 2013-12-31 Resmed Limited Cushion for patient interface
US8613281B2 (en) 2005-01-12 2013-12-24 Resmed Limited Cushion for patient interface
US11607515B2 (en) 2005-01-12 2023-03-21 ResMed Pty Ltd Cushion for patient interface
US8613280B2 (en) 2005-01-12 2013-12-24 Resmed Limited Cushion for patient interface
US9295800B2 (en) 2005-01-12 2016-03-29 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
US8550082B2 (en) 2005-01-12 2013-10-08 Resmed Limited Cushion for patient interface
US8573213B2 (en) 2005-01-12 2013-11-05 Resmed Limited Cushion for patient interface
US8573215B2 (en) 2005-01-12 2013-11-05 Resmed Limited Cushion for patient interface
US8485192B2 (en) 2005-01-12 2013-07-16 Resmed Limited Cushion for patient interface
US10137270B2 (en) 2005-10-14 2018-11-27 Resmed Limited Cushion to frame assembly mechanism
US11633564B2 (en) 2005-10-14 2023-04-25 ResMed Pty Ltd Cushion to frame assembly mechanism
US11529487B2 (en) 2005-10-14 2022-12-20 ResMed Pty Ltd Cushion to frame assembly mechanism
US8944061B2 (en) 2005-10-14 2015-02-03 Resmed Limited Cushion to frame assembly mechanism
US10434273B2 (en) 2005-10-14 2019-10-08 ResMed Pty Ltd Cushion to frame assembly mechanism
US11369765B2 (en) 2005-10-14 2022-06-28 ResMed Pty Ltd Cushion to frame assembly mechanism
US11833305B2 (en) 2005-10-14 2023-12-05 ResMed Pty Ltd Cushion/frame assembly for a patient interface
US11052211B2 (en) 2005-10-25 2021-07-06 ResMed Pty Ltd Interchangeable mask assembly
US11596757B2 (en) 2005-10-25 2023-03-07 ResMed Pty Ltd Interchangeable mask assembly
US9962510B2 (en) 2005-10-25 2018-05-08 Resmed Limited Respiratory mask assembly
US10183138B2 (en) 2005-10-25 2019-01-22 Resmed Limited Interchangeable mask assembly
US9381316B2 (en) 2005-10-25 2016-07-05 Resmed Limited Interchangeable mask assembly
US11890418B2 (en) 2005-10-25 2024-02-06 ResMed Pty Ltd Interchangeable mask assembly
US8028698B2 (en) 2006-09-18 2011-10-04 Invacare Corporation Breathing mask
US20080066761A1 (en) * 2006-09-18 2008-03-20 Invacare Corporation Breathing mask
US8517023B2 (en) 2007-01-30 2013-08-27 Resmed Limited Mask system with interchangeable headgear connectors
US9937315B2 (en) 2007-01-30 2018-04-10 Resmed Limited Mask with removable headgear connector
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
US8869797B2 (en) 2007-04-19 2014-10-28 Resmed Limited Cushion and cushion to frame assembly mechanism for patient interface
US10195384B2 (en) 2007-04-19 2019-02-05 Resmed Limited Cushion and cushion to frame assembly mechanism for patient interface
US11305085B2 (en) 2008-03-04 2022-04-19 ResMed Pty Ltd Mask system with snap-fit shroud
US10751496B2 (en) 2008-03-04 2020-08-25 ResMed Pty Ltd Mask system with shroud
US8522784B2 (en) 2008-03-04 2013-09-03 Resmed Limited Mask system
US9027556B2 (en) 2008-03-04 2015-05-12 Resmed Limited Mask system
US11833277B2 (en) 2008-03-04 2023-12-05 ResMed Pty Ltd Mask system with snap-fit shroud
US8528561B2 (en) 2008-03-04 2013-09-10 Resmed Limited Mask system
US9757533B2 (en) 2008-03-04 2017-09-12 Resmed Limited Mask system with snap-fit shroud
US9770568B2 (en) 2008-03-04 2017-09-26 Resmed Limited 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
US11077274B2 (en) 2008-03-04 2021-08-03 ResMed Pty Ltd Mask system with snap-fit shroud
US9950131B2 (en) 2008-03-04 2018-04-24 Resmed Limited Mask system with snap-fit shroud
US11529488B2 (en) 2008-03-04 2022-12-20 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
US9962511B2 (en) 2008-03-04 2018-05-08 Resmed Limited Mask system with snap-fit shroud
US11331447B2 (en) 2008-03-04 2022-05-17 ResMed Pty Ltd Mask system with snap-fit shroud
US9119931B2 (en) 2008-03-04 2015-09-01 Resmed Limited Mask system
US20120199130A1 (en) * 2009-10-21 2012-08-09 Guillaume Euvrard Hygienic mask for aircraft crewmember and a mask assembly comprising the hygienic mask
US10828441B2 (en) 2011-04-15 2020-11-10 Fisher & Paykel Healthcare Limited Interface comprising a rolling nasal bridge portion
US10828442B2 (en) 2011-04-15 2020-11-10 Fisher & Paykel Healthcare Limited Interface comprising a rolling nasal bridge portion
US11883591B2 (en) 2011-04-15 2024-01-30 Fisher & Paykel Healthcare Limited Interface comprising a rolling nasal bridge portion
US10603456B2 (en) 2011-04-15 2020-03-31 Fisher & Paykel Healthcare Limited Interface comprising a nasal sealing portion
US11065406B2 (en) 2011-04-15 2021-07-20 Fisher & Paykel Healthcare Limited Interface comprising a rolling nasal bridge portion
US11559647B2 (en) 2011-04-15 2023-01-24 Fisher & Paykel Healthcare Limited Interface comprising a nasal sealing portion
US10828443B2 (en) 2011-04-15 2020-11-10 Fisher & Paykel Healthcare Limited Interface comprising a rolling nasal bridge portion
US10828440B2 (en) 2011-04-15 2020-11-10 Fisher & Paykle Healthcare Limited Interface comprising a rolling nasal bridge portion
US10835697B2 (en) 2011-04-15 2020-11-17 Fisher & Paykel Healthcare Limited Interface comprising a rolling nasal bridge portion
US10842955B2 (en) 2011-04-15 2020-11-24 Fisher & Paykel Healthcare Limited Interface comprising a rolling nasal bridge portion
US9841127B2 (en) 2011-11-04 2017-12-12 Blue Gentian, Llc Garden hose device and method
US8479776B2 (en) 2011-11-04 2013-07-09 Blue Gentian, Llc Expandable garden hose
US10174870B2 (en) 2011-11-04 2019-01-08 Telebrands Corp. Expandable and contractible garden hose
US9279525B2 (en) 2011-11-04 2016-03-08 Blue Gentian, Llc Commercial hose
US8757213B2 (en) 2011-11-04 2014-06-24 Blue Gentian, Llc Commercial hose
US11608915B2 (en) 2011-11-04 2023-03-21 Telebrands Corp. Expandable and contractible garden hose
US10890278B2 (en) 2011-11-04 2021-01-12 Telebrands Corp. Expandable and contractible garden hose
US10946155B2 (en) 2012-09-04 2021-03-16 Fisher & Paykel Healthcare Limited Valsalva mask
US11065412B2 (en) 2012-09-04 2021-07-20 Fisher & Paykel Healthcare Limited Valsalva mask
US11471637B2 (en) 2013-03-04 2022-10-18 Fisher & Paykel Healthcare Limited Patient interfaces with condensation reducing or compensating arrangements
US10357627B2 (en) 2013-03-04 2019-07-23 Fisher & Paykel Healthcare Limited Patient interfaces with condensation reducing or compensating arrangements
US10668242B2 (en) 2013-04-26 2020-06-02 Fisher & Paykel Healthcare Limited Headgear for breathing mask
US11419999B2 (en) 2013-08-05 2022-08-23 Fisher & Paykel Healthcare Limited Seal for a patient interface, interface assemblies and aspects thereof
US11701486B2 (en) 2014-06-17 2023-07-18 Fisher & Paykel Healthcare Limited Patient interfaces
US10518054B2 (en) 2014-08-25 2019-12-31 Fisher & Paykel Healthcare Limited Respiratory mask and related portions, components or sub-assemblies
US11305084B2 (en) 2014-08-25 2022-04-19 Fisher & Paykel Healthcare Limited Respiratory mask and related portions, components or sub-assemblies
US11351323B2 (en) 2014-11-14 2022-06-07 Fisher & Paykel Healthcare Limited Patient interface for PAP therapy with rigid headgear connection elements
USD824020S1 (en) 2017-02-23 2018-07-24 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD994876S1 (en) 2017-02-23 2023-08-08 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD969306S1 (en) 2017-02-23 2022-11-08 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD823455S1 (en) 2017-02-23 2018-07-17 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD837973S1 (en) 2017-02-23 2019-01-08 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD823454S1 (en) 2017-02-23 2018-07-17 Fisher & Paykel Healthcare Limited Cushion assembly for breathing mask assembly
USD894394S1 (en) * 2020-05-12 2020-08-25 Shenzhen Aidiansheng Technology Co., Ltd. Breathing filter

Similar Documents

Publication Publication Date Title
US3315674A (en) Filter mask facelet
US4352353A (en) Protective clothing
US4831664A (en) Garment for protecting against environmental contamination
US4116237A (en) Emergency breathing apparatus
US4901370A (en) Garment for protecting against environmental contamination
US6119690A (en) Nostril filter system
US3599636A (en) Inflatable head harness for respirator devices
US4323063A (en) Medical face mask
US4411023A (en) Smoke protective hood
US5113854A (en) Quick-donning protective hood assembly
US6543450B1 (en) Survival mask
US4231359A (en) Personal emergency breathing hood with nose blocking device
US2921581A (en) Adhesive-type oxygen mask
US4847914A (en) Garment for protecting against environmental contamination
JPH08182769A (en) Total face oxygen mask which can be promptly worn,with expandable harness and flexible,foldable lens
US2809633A (en) Adhesive-type oxygen mask
NL7811193A (en) DEVICE FOR SUPPLYING GAS TO A GAS MASK.
GB1576630A (en) Head protection respiratory device
US2435167A (en) Protective device
US5645046A (en) Breathing equipment
US3221339A (en) Neck sleeve for connecting a helmet to a life vest
EP2979562A1 (en) Breathing protection hood
US2465973A (en) High elevation mask
RU2452538C1 (en) Km-36 pilot oxygen mask
GB2080120A (en) Respirator for use in a toxic environment

Legal Events

Date Code Title Description
AS Assignment

Owner name: TEXACE CORPORATION A CORP. OF TEX.

Free format text: CHANGE OF NAME;ASSIGNOR:CAPTECH INC.;REEL/FRAME:003996/0930

Effective date: 19781110

Owner name: CAPTECH INC.

Free format text: NUNC PRO TUNC ASSIGNMENT;ASSIGNOR:SIERRA ENGINEERING CO.;REEL/FRAME:003996/0923

Effective date: 19690728

Owner name: SCOTT AVIATION-SIERRA PRODUCTS, INC.,

Free format text: CHANGE OF NAME;ASSIGNOR:TEXACE CORPORATION;REEL/FRAME:003996/0919

Effective date: 19781110

AS Assignment

Owner name: FIGGIE INTERNATIONAL INC., 4420 SHERWIN RD. WILLOU

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SCOTT AVIATION-SIERRA PRODUCTS, INC.;REEL/FRAME:003961/0236

Effective date: 19811105