Connect public, paid and private patent data with Google Patents Public Datasets

Filter mask facelet

Download PDF

Info

Publication number
US3315674A
US3315674A US42143564A US3315674A US 3315674 A US3315674 A US 3315674A US 42143564 A US42143564 A US 42143564A US 3315674 A US3315674 A US 3315674A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
face
facelet
mask
piece
rim
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
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.)
FIGGIE INTERNATIONAL Inc A CORP OF OHIO
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
Grant date

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00Breathing 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
    • A62B18/08Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices

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.
US3315674A 1964-12-28 1964-12-28 Filter mask facelet Expired - Lifetime US3315674A (en)

Priority Applications (1)

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

Applications Claiming Priority (1)

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

Country Status (1)

Country Link
US (1) US3315674A (en)

Cited By (53)

* 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
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
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
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
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
USRE44545E1 (en) 2003-05-16 2013-10-22 Intertechnique Respirator mask with hygienic protection
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

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 (173)

* 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
US6634358B2 (en) 1996-07-26 2003-10-21 Resmed Limited Nasal mask cushion assembly
US7950392B2 (en) 1996-07-26 2011-05-31 Resmed Limited Cushion and mask therefor
US6871649B2 (en) 1996-07-26 2005-03-29 Resmed Limited Nasal mask cushion assembly
US8056561B2 (en) 1996-07-26 2011-11-15 Resmed Limited Full-face mask and mask cushion therefor
US8522783B2 (en) 1996-07-26 2013-09-03 Resmed Limited Cushion and mask therefor
US6112746A (en) * 1996-07-26 2000-09-05 Resmed Limited Nasal mask and mask cushion therefor
US20040094159A1 (en) * 1996-07-26 2004-05-20 Resmed Limited Breathing mask and mask cushion therefor
USD498529S1 (en) 1996-07-26 2004-11-16 Resmed Limited Portion of a cushion for use with a mask assembly in the application of continuous positive airway pressure (CPAP)
US20070261697A1 (en) * 1996-07-26 2007-11-15 Resmed Limited Cushion and mask therefor
US6357441B1 (en) 1996-07-26 2002-03-19 Resmed Limited Nasal mask and mask cushion therefor
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
US9463295B2 (en) 1996-07-26 2016-10-11 Resmed Limited 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
US20070107735A1 (en) * 1996-07-26 2007-05-17 Resmed Limited Mask
US7069933B2 (en) 1996-07-26 2006-07-04 Resmed Limited Breathing mask and mask cushion therefor
US6701927B2 (en) 1996-07-26 2004-03-09 Resmed Limited Full-face mask and mask cushion therefor
US8813748B2 (en) 1996-07-26 2014-08-26 Resmed Limited Full-face mask and mask cushion therefor
US6581602B2 (en) 1996-07-26 2003-06-24 Resmed Limited Nasal mask and mask cushion therefor
US9421339B2 (en) 1996-07-26 2016-08-23 Resmed Limited Patient interface
US8997739B2 (en) 1996-10-16 2015-04-07 Resmed Limited Vent valve apparatus
US20050166923A1 (en) * 1996-10-16 2005-08-04 Resmed Limited Vent assembly
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
US6889692B2 (en) 1996-10-16 2005-05-10 Resmed Limited Vent valve assembly
US6006748A (en) * 1996-10-16 1999-12-28 Resmed Limited Vent valve apparatus
US9770571B2 (en) 1996-10-16 2017-09-26 Resmed Limited Vent valve assembly
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
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
US6561190B1 (en) 1997-02-10 2003-05-13 Resmed Limited Mask and a vent assembly therefor
US8833371B2 (en) 1997-02-10 2014-09-16 Resmed Limited Mask and vent assembly therefor
US7207335B2 (en) 1997-02-10 2007-04-24 Resmed Limited Mask and vent assembly therefor
US8122886B2 (en) 1997-02-10 2012-02-28 Resmed Limited Respiratory mask assembly with vent
US8826910B2 (en) 1997-02-10 2014-09-09 Resmed Limited Mask and vent assembly therefor
US7845354B2 (en) 1997-02-10 2010-12-07 Resmed Limited Mask and vent assembly therefor
US6561191B1 (en) 1997-02-10 2003-05-13 Resmed Limited Mask and a vent assembly therefor
US20070101998A1 (en) * 1997-02-10 2007-05-10 Resmed Limited Respiratory mask assembly with vent
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
US7882837B2 (en) 1998-01-16 2011-02-08 Resmed Limited Forehead support for facial mask
US6997188B2 (en) 1998-01-16 2006-02-14 Resmed Limited Forehead support for facial mask
US20060011202A1 (en) * 1998-01-16 2006-01-19 Resmed Limited Forehead support for facial mask
US20110094517A1 (en) * 1998-01-16 2011-04-28 Resmed Limited Forehead support for facial mask
US6691708B2 (en) 1998-01-16 2004-02-17 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
US6119693A (en) * 1998-01-16 2000-09-19 Resmed Limited Forehead support for facial mask
US6557556B2 (en) 1998-01-16 2003-05-06 Resmed Limited Forehead support for facial mask
US9220861B2 (en) 1998-01-16 2015-12-29 Resmed Limited Forehead support for facial mask
US6463931B1 (en) 1998-01-16 2002-10-15 Resmed Limited Forehead support for facial mask
USD807497S1 (en) 1998-01-16 2018-01-09 Resmed Limited Pad for forehead support
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
US7942149B2 (en) 1999-03-29 2011-05-17 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
US20050139219A1 (en) * 1999-03-29 2005-06-30 Resmed Limited Forehead support for 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
US8186348B2 (en) 1999-06-18 2012-05-29 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
US6860269B2 (en) 1999-06-18 2005-03-01 Resmed Limited Forehead support for facial mask
US20030034034A1 (en) * 1999-06-18 2003-02-20 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
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
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
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
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
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
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
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
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
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
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
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
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
US8875710B2 (en) 2001-10-22 2014-11-04 Resmed R&D Germany Gmbh Application device for a breathing mask arrangement
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
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
US20050211252A1 (en) * 2002-01-17 2005-09-29 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
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
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
US9802021B2 (en) 2002-12-06 2017-10-31 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
US20110000491A1 (en) * 2003-04-10 2011-01-06 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
US20080092899A1 (en) * 2003-04-10 2008-04-24 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
US7503327B2 (en) 2003-04-10 2009-03-17 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
US8210180B2 (en) 2003-04-10 2012-07-03 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
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
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
US20060130845A1 (en) * 2003-05-16 2006-06-22 Robert Schegerin Respirator mask with hygienic protection
EP1624937A1 (en) * 2003-05-16 2006-02-15 Intertechnique Respirator mask with hygienic protection
US20050056286A1 (en) * 2003-09-17 2005-03-17 Huddart Brett John Breathable respiratory mask
US8997743B2 (en) * 2003-09-17 2015-04-07 Fisher & Paykel Healthcare Limited Breathable respiratory mask
US7942150B2 (en) 2004-04-09 2011-05-17 Resmed Limited Nasal assembly
US20050241644A1 (en) * 2004-04-09 2005-11-03 Resmed Limited Nasal assembly
US8757162B2 (en) 2004-04-09 2014-06-24 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
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
US8613280B2 (en) 2005-01-12 2013-12-24 Resmed Limited Cushion for patient interface
US8550083B2 (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
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
US8578935B2 (en) 2005-01-12 2013-11-12 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
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
US8616211B2 (en) 2005-01-12 2013-12-31 Resmed Limited Cushion for patient interface
US8573214B2 (en) 2005-01-12 2013-11-05 Resmed Limited Cushion for patient interface
US9295800B2 (en) 2005-01-12 2016-03-29 Resmed Limited Cushion for patient interface
US8550081B2 (en) 2005-01-12 2013-10-08 Resmed Limited Cushion for patient interface
US8944061B2 (en) 2005-10-14 2015-02-03 Resmed Limited Cushion to frame assembly mechanism
US9381316B2 (en) 2005-10-25 2016-07-05 Resmed Limited 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
US8960196B2 (en) 2007-01-30 2015-02-24 Resmed Limited Mask system with interchangeable headgear connectors
US8517023B2 (en) 2007-01-30 2013-08-27 Resmed Limited Mask system with interchangeable headgear connectors
US8869797B2 (en) 2007-04-19 2014-10-28 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
US9757533B2 (en) 2008-03-04 2017-09-12 Resmed Limited Mask system with snap-fit shroud
US9119931B2 (en) 2008-03-04 2015-09-01 Resmed Limited Mask system
US8550084B2 (en) 2008-03-04 2013-10-08 Resmed Limited Mask system
US8522784B2 (en) 2008-03-04 2013-09-03 Resmed Limited Mask system
US8528561B2 (en) 2008-03-04 2013-09-10 Resmed Limited Mask system
US9027556B2 (en) 2008-03-04 2015-05-12 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
US8479776B2 (en) 2011-11-04 2013-07-09 Blue Gentian, Llc Expandable garden hose
US8757213B2 (en) 2011-11-04 2014-06-24 Blue Gentian, Llc Commercial hose
US9279525B2 (en) 2011-11-04 2016-03-08 Blue Gentian, Llc Commercial hose
US9841127B2 (en) 2011-11-04 2017-12-12 Blue Gentian, Llc Garden hose device and method

Similar Documents

Publication Publication Date Title
US3521630A (en) Respirator face mask with replaceable filter
US3680556A (en) Diving helmet
US3362403A (en) Unified helmet and oxygen breathing assembly
US3457917A (en) Nasal filtering device
US3415245A (en) Noise-suppression diving apparatus
US3238943A (en) Aid breathing system
US3018776A (en) Toxic chemicals mask
US5237986A (en) Respirator harness assembly
US5509436A (en) Unidirectional fluid valve
US5488948A (en) Fast donning respiratory protection equipment
US4961420A (en) Gas mask for operation in contaminated areas
US6340024B1 (en) Protective hood and oral/nasal mask
US4945907A (en) Face mask
US2837090A (en) Universal aviators oxygen breathing mask
US6526585B1 (en) Wet smoke mask
US6155253A (en) Protection mask, in particular for underwater use
US5941245A (en) Crew oxygen mask with improved comfort control apparatus
US3762407A (en) Survival support device
US4454881A (en) Multi-layer face mask with molded edge bead
US5503147A (en) Respiratory equipment with comfort adjustment
US3768100A (en) Cold weather face mask
US6817362B2 (en) Respirator
US4233972A (en) Portable air filtering and breathing assist device
US5555569A (en) Helmet and face mask interface system
US3491752A (en) Breathing apparatus

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