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US2705954A - Respiratory mask and stiffening member therefor - Google Patents

Respiratory mask and stiffening member therefor Download PDF

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Publication number
US2705954A
US2705954A US250925A US25092551A US2705954A US 2705954 A US2705954 A US 2705954A US 250925 A US250925 A US 250925A US 25092551 A US25092551 A US 25092551A US 2705954 A US2705954 A US 2705954A
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bag
face piece
stiffening member
rebreather
mask
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US250925A
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Mary M Andrews
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Goodrich Corp
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BF Goodrich Corp
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    • 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

  • This invention relates to a respiratory mask and pertains more particularly to a respiratory mask having a relatively rigid stiflening member disposed between the face piece and rebreather bag of the mask and the method of making same.
  • Another object of this invention is to provide a relatively flexible light-weight respiratory mask which may be comfortably worn for long periods of time.
  • Still another object of this invention is to provide a convenient and economical method of making a respiratory mask.
  • Respiratory masks are commonly used for supplying an oxygen-rich gaseous mixture to aviators and to persons afflicted with a respiratory disease.
  • One conventional type of respiratory mask utilized in this manner comprises a face piece adapted to fit over the nose and/or mouth of the wearer and a rebreather bag or container depending from the face piece of the mask adapted to function as a reservoir for oxygen-rich exhalation air during the exhalation portion of the breathing cycle so that an abundant supply of oxygen-rich air is available to the wearer of the mask during the inhalation portion of the breathing cycle, gaseous oxygen being supplied to the rebreather bag to replenish the oxygen used by the wearer of the mask during prior inhalation.
  • the rebreather bag is commonly constructed of a relatively flexible lightweight material, such as rubber, to provide an article which may be comfortably worn for long periods of time.
  • This conventional type of respiratory mask has not been entirely satisfactory, however, in that, because of the flexible characteristic of the mask, a relatively small force exerted on the rebreather bag, such as occurs if the wearer of the mask lies upon the rebreather bag, collapses the bag terminating the flow of oxygen-rich air to the face piece of the mask and, consequently, to the wearer.
  • the passageway between the face piece and rebreather bag of the mask is frequently collapsed by the wearer of the mask during normal usage by inadvertently displacing the rebreather bag from its normal depending position with respect to the face piece of the mask thus restricting or completely cutting-off the flow of oxygenrich air to the wearer of the mask.
  • a respiratory mask within the purview of this invention comprises a face piece adapted to fit over the nose and/ or mouth of the wearer, a rebreather bag, which may be integral with the face piece or a separate member, depending from the face piece, and a relatively rigid connector or stiffening member extending from the face piece of the mask into the rebreather bag.
  • Fig. l is a view in elevation partly broken away and in section of a respiratory mask within the purview of this invention
  • Fig. 2 is a section on line 22 of Fig. 1;
  • Fig. 3 is a view in elevation partly broken away and in section of another embodiment of this invention.
  • Fig. 4 is a section on line 44 of Fig. 3.
  • Fig. 5 is a view in elevation partly broken away and in section of a third embodiment of this invention.
  • respiratory mask 10 comprises a thin-walled flexible face piece 11 of rubber-like material adapted to fit over the wearer's nose and mouth and a thinwalled pleated flexible rebreather bag or container 12 of rubber-like material connected integrally to face piece 11.
  • Rebreather bag 12 is provided with a nipple 3.3 which is connected to an oxygen supply tube 14 when mask 1% is in use.
  • Face piece 11 and bag 12 may be formed in any usual manner such as by depositing a layer of rubbery material from an aqueous dispersion thereof onto an appropriately shaped deposition form.
  • a reiatr'el'y rigid open-ended connector or stiffening member 15 having a tubular configuration extends a substantiai distance, preferably a distance of at least about one inch, into bag 12, as shown in Fig. l, and is provided with a flange 16 on one end which bears against the walls of face piece 11 preventing connector tube 15 from being urged completely into bag 12.
  • the other end of stiffening member 15 extending into bag 12 is provided with a serrated edge 17 which prevents the tubular opening of stiffening member 15 from becoming entirely closed if bag 12 is collapsed over the stiffening member, the notched openings formed by serrated tubular edge 17 providing a plurality of conduits through which the oxygenrich mixture may flow.
  • Stifiening member 15 may be constructed of any relatively rigid or stiff water-insoluble material, such as aluminum, steel, brass, copper, bronze, plastic materials, and the like.
  • respiratory mask 18 comprises a thin-walled flexible face piece 19 of rubber-like material adapted to fit over the nose and mouth of the wearer, a thin-walled flexible rebreather container or bag 2i! of rubber-like material depending from face piece 19 and integrally connected therewith, and a relatively rigid or stiff tubular connector or stiffening member 21 extending from face piece 19 a substantial distance into bag 20, preferably a distance of at least about one inch.
  • connector member 21 extending into face piece 19 is provided with a flange 22 which serves the same purpose as flange 16 of mask 10 and the other end of connector member 21 extending into bag 20 is provided with a serrated edge 23 which serves the same function as the ser rated tubular edge 17 of connector member 15 of mask 19.
  • Slotted openings 24, 24 in the tubular wall of connector member 21 provide additional passageways through which an oxygen-rich mixture contained in bag 29 may flow to allow a suthcient quantity of the oxygen-rich mixture to be drawn into face piece 19 by the wearer during the inhalation portion of the breathing cycle even if bag 20 is collapsed over the serrated tubular opening of connector member 21 as a result of external forces being applied to bag 2% to collapse it.
  • respiratory mask 27 comprises a thin-walled flexible face piece 23 of rubber; material and a thin-walled flexible rebreather bag 29 of rubbery material depending from face piece 28 and integrally connected therewith.
  • a relatively rigid or stiff tubular stiffening or connector member 30 extends from face piece 28 through bag 29, as shown in Fig. 5, one end of said stiffening member being provided with a flange 31 which is fitted into a groove 32 in the wall of face piece 28 to hold stiffening member 30 securely in the desired position preventing this end of stiffening member 30 from being urged into bag 29.
  • the other end of stiffening member 30 is tapered to form nipple 33 which is connected with an oxygen supply tube 34 when respiratory mask 27 is in use.
  • Slotted openings 35, 35 in the wall of tubular stiffening member 30 provide conduits through which an oxygen-rich mixture confined in bag 29 may flow during the inhalation portion of the breathing cycle.
  • the flexible opening or passageway between the face piece and rebreather bag of a respiratory mask within the purview of this invention is not susceptible to being collapsed as a result of the rebreather bag being displaced from its normal depending condition as is a flexible mask of conventional construction.
  • the flow of an oxygen-rich mixture confined in the rebreather bag to the face piece of the mask is not terminated in respiratory masks within the purview of this invention if the rebreather bag is collapsed by external forces exerted on the rebreather bag as would occur if the wearer were to inadvertently lie on the rebreather bag.
  • a respiratory mask comprising a relatively flexible face piece adapted to fit over the face, a relatively flexible rebreather bag depending from said face piece, and a relatively rigid open-ended tubular stiffening member opening into and extending from said face piece through said rebreather bag, the portion of said tubular stiffening member disposed Within the confines of said rebreather bag having a plurality of openings in the tubular wall thereof.
  • a respiratory mask comprising, in combination, a relatively flexible face piece adapted to fit over the face, a relatively flexible rebreather bag depending from said face piece, and a relatively rigid generally tubular hollow open-ended stiffening member extending from said face piece a substantial distance into said rebreather bag, said tubular stiffening member having a conduit extending through its entire length, said conduit opening into said face piece.
  • a respiratory mask comprising, in combination, a relatively flexible face piece adapted to flt over the face, a relatively flexible rebreather bag depending from said face piece, and a relatively rigid generally tubular hollow open-ended stiffening member extending from said face piece a substantial distance into said rebreather bag, said tubular stiffening member having a conduit extending through its entire length, said conduit opening into said face piece at the one end thereof and into said rebreather bag at the other end thereof, the end of said tubular stiffening member which extends a substantial distance into said rebreather bag having a serrated edge to permit an oxygen-rich mixture confined in said rebreather bag to flow from said rebreather bag into said conduit of said stiffening member even though said rebreather bag is collapsed over the end of the said tubular stiffening member.
  • a respiratory mask comprising, in combination, a relatively flexible face piece adapted to fit over the face, a relatively flexible rebreather bag depending from said face piece, and a relatively rigid generally tubular hollow open-ended stiffening member extending from said face piece a substantial distance into said rebreather bag, said tubular stiflening member having a conduit extending through its entire length and opening into said face piece, the end of said tubular stiffening member extending into said rebreather bag having a plurality of openings in the tubular wall thereof to, permit an oxygen-rich mixture confined in said rebreather bag to flow from said rebreather bag into the said conduit of said stiffening member.
  • a respiratory mask comprising, in combination, a relatively flexible face piece adapted to fit over the face, a relatively flexible rebreather bag depending from said face piece, and a relatively rigid generally tubular hollow open-ended stiffening member extending from said face piece a substantial distance into said rebreather bag, said tubular stiffening member having a conduit extending through its entire length, said conduit opening into said face piece at the one end thereof and into said rebreather bag at the other end thereof, the end of said tubular stiffening member which extends a substantial distance into said rebreather bag having a serrated edge and a plurality of openings in the tubular wall thereof to permit an oxygen-rich mixture confined in said rebreather bag to flow from said rebreather bag into said conduit of said stiffening member even though said rebreather bag is collapsed over the end of the said tubular stiffening member.
  • a respiratory mask comprising, in combination, a relatively flexible face piece adapted to fit over the face, a relatively flexible rebreather bag depending from said face piece, and a relatively rigid generally tubular hollow open-ended stiffening member extending from said face piece a substantial distance into said rebreather bag, said tubular stiffening member having a conduit extending through its entire length, said conduit opening into said face piece at the one end thereof and into said rebreather bag at the other end thereof, the end of said tubular stiffening member which extends a substantial distance into said rebreather bag having a serrated edge and a plurality of openings in the tubular wall thereof to permit an oxygenrich mixture confined in said rebreather bag to flow from said rebreather bag into said conduit of said stiffening member even though said rebreather bag is collapsed over the end of the said tubular stiflening member, the other end of said tubular stiffening member having a flanged portion fitted into a groove in said
  • a respiratory mask comprising, in combination, a relatively flexible face piece adapted to fit over the face, a relatively flexible rebreather bag depending from said face piece, and a relatively rigid generally tubular hollow open-ended stiffening member extending from said face piece a substantial distance into said rebreather bag, said tubular stiffening member having a conduit extending through its entire length, said conduit opening into said face piece at the one end thereof and into said rebreather bag at the other end thereof, the end of said stifiening member which extends a substantial distance into said rebreather bag having a plurality of openings in the tubular wall thereof and having a restraining member extendmg over said openings and spaced therefrom to maintain said rebreather bag in a spaced relationship from said openings.

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Description

April 12, 1955 M. M. ANDREWS RESPIRATORY MASK AND STIFFENING MEMBER THEREFOR Filed Oct. 11, 1951 2 Shets-Sheet l April 12, 1955 M. M. ANDREWS RESPIRATORY MASK AND STIFFENING MEMBER THEREFOR Filed Oct. 11 1951 2 Sheets-Sheet 2 Jz'zL/E" 27' 2 0E 277E155- mfindasws 5 02M w. 5
United States Patent RESPIRATORY lVIASK AYD STIFFENING MEIVIBER THEREFOR Mary M. Andrews, Akron, Ohio, assignor, by mesne assignments, to The B. F. Goodrich Company, Akron, Ohio, a corporation of New York Application October 11, 1951, Serial No. 250,925
7 Claims. (Cl. 128-402) This invention relates to a respiratory mask and pertains more particularly to a respiratory mask having a relatively rigid stiflening member disposed between the face piece and rebreather bag of the mask and the method of making same.
It is an object of this invention to provide a relatively flexible respiratory mask for supplying an oxygen-rich gaseous fluid to the wearer of the mask at all times regardless of the position of the rebreather bag with respect to the face piece of the mask.
it is also an object of this invention to provide a connector or stiifening member for a respiratory mask for maintaining the passageway between the face piece and rebreather bag of the mask in an open condition at all times and for maintaining a non-collapsible conduit to allow oxygen-rich air to flow to the face piece of the mask even when the rebreather bag is in a collapsed condition due to externally applied forces.
Another object of this invention is to provide a relatively flexible light-weight respiratory mask which may be comfortably worn for long periods of time.
Still another object of this invention is to provide a convenient and economical method of making a respiratory mask.
Other objects of this invention will be apparent from the drawings and description which follow.
Respiratory masks are commonly used for supplying an oxygen-rich gaseous mixture to aviators and to persons afflicted with a respiratory disease. One conventional type of respiratory mask utilized in this manner comprises a face piece adapted to fit over the nose and/or mouth of the wearer and a rebreather bag or container depending from the face piece of the mask adapted to function as a reservoir for oxygen-rich exhalation air during the exhalation portion of the breathing cycle so that an abundant supply of oxygen-rich air is available to the wearer of the mask during the inhalation portion of the breathing cycle, gaseous oxygen being supplied to the rebreather bag to replenish the oxygen used by the wearer of the mask during prior inhalation. The rebreather bag is commonly constructed of a relatively flexible lightweight material, such as rubber, to provide an article which may be comfortably worn for long periods of time. This conventional type of respiratory mask has not been entirely satisfactory, however, in that, because of the flexible characteristic of the mask, a relatively small force exerted on the rebreather bag, such as occurs if the wearer of the mask lies upon the rebreather bag, collapses the bag terminating the flow of oxygen-rich air to the face piece of the mask and, consequently, to the wearer. Also, the passageway between the face piece and rebreather bag of the mask, being flexible, is frequently collapsed by the wearer of the mask during normal usage by inadvertently displacing the rebreather bag from its normal depending position with respect to the face piece of the mask thus restricting or completely cutting-off the flow of oxygenrich air to the wearer of the mask.
1 have invented a respiratory mask which attains the objectives enumerated above and is not subject to the deficiencies of conventional rebreather bag respiratory masks. A respiratory mask within the purview of this invention comprises a face piece adapted to fit over the nose and/ or mouth of the wearer, a rebreather bag, which may be integral with the face piece or a separate member, depending from the face piece, and a relatively rigid connector or stiffening member extending from the face piece of the mask into the rebreather bag.
To clearly teach this invention reference will henceforth be made to the embodiments of this invention shown in the appended drawings, however, it will be understood that they are intended merely as illustrations of this invention and that I do not intend to limit the scope of this invention to the embodiments described.
In the drawings:
Fig. l is a view in elevation partly broken away and in section of a respiratory mask within the purview of this invention;
Fig. 2 is a section on line 22 of Fig. 1;
Fig. 3 is a view in elevation partly broken away and in section of another embodiment of this invention;
Fig. 4 is a section on line 44 of Fig. 3; and
Fig. 5 is a view in elevation partly broken away and in section of a third embodiment of this invention.
Referring to Fig. 1, respiratory mask 10 comprises a thin-walled flexible face piece 11 of rubber-like material adapted to fit over the wearer's nose and mouth and a thinwalled pleated flexible rebreather bag or container 12 of rubber-like material connected integrally to face piece 11. Rebreather bag 12 is provided with a nipple 3.3 which is connected to an oxygen supply tube 14 when mask 1% is in use. Face piece 11 and bag 12 may be formed in any usual manner such as by depositing a layer of rubbery material from an aqueous dispersion thereof onto an appropriately shaped deposition form.
A reiatr'el'y rigid open-ended connector or stiffening member 15 having a tubular configuration extends a substantiai distance, preferably a distance of at least about one inch, into bag 12, as shown in Fig. l, and is provided with a flange 16 on one end which bears against the walls of face piece 11 preventing connector tube 15 from being urged completely into bag 12. The other end of stiffening member 15 extending into bag 12 is provided with a serrated edge 17 which prevents the tubular opening of stiffening member 15 from becoming entirely closed if bag 12 is collapsed over the stiffening member, the notched openings formed by serrated tubular edge 17 providing a plurality of conduits through which the oxygenrich mixture may flow. Stifiening member 15 may be constructed of any relatively rigid or stiff water-insoluble material, such as aluminum, steel, brass, copper, bronze, plastic materials, and the like.
In the embodiment of this invention shown in Figs. 3 and 4, respiratory mask 18 comprises a thin-walled flexible face piece 19 of rubber-like material adapted to fit over the nose and mouth of the wearer, a thin-walled flexible rebreather container or bag 2i! of rubber-like material depending from face piece 19 and integrally connected therewith, and a relatively rigid or stiff tubular connector or stiffening member 21 extending from face piece 19 a substantial distance into bag 20, preferably a distance of at least about one inch. The end of connector member 21 extending into face piece 19 is provided with a flange 22 which serves the same purpose as flange 16 of mask 10 and the other end of connector member 21 extending into bag 20 is provided with a serrated edge 23 which serves the same function as the ser rated tubular edge 17 of connector member 15 of mask 19. Slotted openings 24, 24 in the tubular wall of connector member 21 provide additional passageways through which an oxygen-rich mixture contained in bag 29 may flow to allow a suthcient quantity of the oxygen-rich mixture to be drawn into face piece 19 by the wearer during the inhalation portion of the breathing cycle even if bag 20 is collapsed over the serrated tubular opening of connector member 21 as a result of external forces being applied to bag 2% to collapse it. A relatively rigid hoodlike guard or restraining member 25, preferably an integral portion of connector member 21, extending over slotted openings 24, 24-, as shown in Fig. 3, prevents bag 28 from being collapsed over and closing openings 24, 24 preventing the flow of fluid confined in bag 20 therethrough.
In another embodiment of this invention shown in Fig. 5, respiratory mask 27 comprises a thin-walled flexible face piece 23 of rubber; material and a thin-walled flexible rebreather bag 29 of rubbery material depending from face piece 28 and integrally connected therewith. A relatively rigid or stiff tubular stiffening or connector member 30 extends from face piece 28 through bag 29, as shown in Fig. 5, one end of said stiffening member being provided with a flange 31 which is fitted into a groove 32 in the wall of face piece 28 to hold stiffening member 30 securely in the desired position preventing this end of stiffening member 30 from being urged into bag 29. The other end of stiffening member 30 is tapered to form nipple 33 which is connected with an oxygen supply tube 34 when respiratory mask 27 is in use. Slotted openings 35, 35 in the wall of tubular stiffening member 30 provide conduits through which an oxygen-rich mixture confined in bag 29 may flow during the inhalation portion of the breathing cycle.
The flexible opening or passageway between the face piece and rebreather bag of a respiratory mask within the purview of this invention is not susceptible to being collapsed as a result of the rebreather bag being displaced from its normal depending condition as is a flexible mask of conventional construction.
Also, the flow of an oxygen-rich mixture confined in the rebreather bag to the face piece of the mask is not terminated in respiratory masks within the purview of this invention if the rebreather bag is collapsed by external forces exerted on the rebreather bag as would occur if the wearer were to inadvertently lie on the rebreather bag.
it is clear that obvious variations and modifications of this invention may be made without departing from the spirit and scope of this invention as defined in the appended claims.
I claim:
1. A respiratory mask comprising a relatively flexible face piece adapted to fit over the face, a relatively flexible rebreather bag depending from said face piece, and a relatively rigid open-ended tubular stiffening member opening into and extending from said face piece through said rebreather bag, the portion of said tubular stiffening member disposed Within the confines of said rebreather bag having a plurality of openings in the tubular wall thereof.
2. A respiratory mask comprising, in combination, a relatively flexible face piece adapted to fit over the face, a relatively flexible rebreather bag depending from said face piece, and a relatively rigid generally tubular hollow open-ended stiffening member extending from said face piece a substantial distance into said rebreather bag, said tubular stiffening member having a conduit extending through its entire length, said conduit opening into said face piece.
3. A respiratory mask comprising, in combination, a relatively flexible face piece adapted to flt over the face, a relatively flexible rebreather bag depending from said face piece, and a relatively rigid generally tubular hollow open-ended stiffening member extending from said face piece a substantial distance into said rebreather bag, said tubular stiffening member having a conduit extending through its entire length, said conduit opening into said face piece at the one end thereof and into said rebreather bag at the other end thereof, the end of said tubular stiffening member which extends a substantial distance into said rebreather bag having a serrated edge to permit an oxygen-rich mixture confined in said rebreather bag to flow from said rebreather bag into said conduit of said stiffening member even though said rebreather bag is collapsed over the end of the said tubular stiffening member.
4. A respiratory mask comprising, in combination, a relatively flexible face piece adapted to fit over the face, a relatively flexible rebreather bag depending from said face piece, and a relatively rigid generally tubular hollow open-ended stiffening member extending from said face piece a substantial distance into said rebreather bag, said tubular stiflening member having a conduit extending through its entire length and opening into said face piece, the end of said tubular stiffening member extending into said rebreather bag having a plurality of openings in the tubular wall thereof to, permit an oxygen-rich mixture confined in said rebreather bag to flow from said rebreather bag into the said conduit of said stiffening member.
S A respiratory mask comprising, in combination, a relatively flexible face piece adapted to fit over the face, a relatively flexible rebreather bag depending from said face piece, and a relatively rigid generally tubular hollow open-ended stiffening member extending from said face piece a substantial distance into said rebreather bag, said tubular stiffening member having a conduit extending through its entire length, said conduit opening into said face piece at the one end thereof and into said rebreather bag at the other end thereof, the end of said tubular stiffening member which extends a substantial distance into said rebreather bag having a serrated edge and a plurality of openings in the tubular wall thereof to permit an oxygen-rich mixture confined in said rebreather bag to flow from said rebreather bag into said conduit of said stiffening member even though said rebreather bag is collapsed over the end of the said tubular stiffening member.
6. A respiratory mask comprising, in combination, a relatively flexible face piece adapted to fit over the face, a relatively flexible rebreather bag depending from said face piece, and a relatively rigid generally tubular hollow open-ended stiffening member extending from said face piece a substantial distance into said rebreather bag, said tubular stiffening member having a conduit extending through its entire length, said conduit opening into said face piece at the one end thereof and into said rebreather bag at the other end thereof, the end of said tubular stiffening member which extends a substantial distance into said rebreather bag having a serrated edge and a plurality of openings in the tubular wall thereof to permit an oxygenrich mixture confined in said rebreather bag to flow from said rebreather bag into said conduit of said stiffening member even though said rebreather bag is collapsed over the end of the said tubular stiflening member, the other end of said tubular stiffening member having a flanged portion fitted into a groove in said face piece to secure said stiffening member to said face piece.
7. A respiratory mask comprising, in combination, a relatively flexible face piece adapted to fit over the face, a relatively flexible rebreather bag depending from said face piece, and a relatively rigid generally tubular hollow open-ended stiffening member extending from said face piece a substantial distance into said rebreather bag, said tubular stiffening member having a conduit extending through its entire length, said conduit opening into said face piece at the one end thereof and into said rebreather bag at the other end thereof, the end of said stifiening member which extends a substantial distance into said rebreather bag having a plurality of openings in the tubular wall thereof and having a restraining member extendmg over said openings and spaced therefrom to maintain said rebreather bag in a spaced relationship from said openings.
References Cited in the file of this patent UNITED STATES PATENTS 733,026 Goldan July 7, 1903 1,683,686 McMillan Sept. 11, 1928 2,130,406 Angell Sept. 20, 1938 2,185,067 Sholes Dec. 26, 1939 2,260,701 Boothby Oct. 28,1941 2,535,938 Lombard Dec. 26, 1950 FOREIGN PATENTS 865,203 France Feb. 17, 1940
US250925A 1951-10-11 1951-10-11 Respiratory mask and stiffening member therefor Expired - Lifetime US2705954A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3859997A (en) * 1971-09-30 1975-01-14 Becton Dickinson Co Reservoir bag for anesthesiology
US20050257791A1 (en) * 2004-05-21 2005-11-24 Biederman Paul D Capnography measurement adapter and airway mask system
US11207476B2 (en) * 2016-04-18 2021-12-28 Inspiring Pty Ltd Flexible bag spacer device for an inhaler

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US733026A (en) * 1902-07-11 1903-07-07 Frederick Tagliavia Tanini Inhaler.
US1683686A (en) * 1926-11-20 1928-09-11 John W Mcmillan Inhaling device
US2130406A (en) * 1935-04-18 1938-09-20 White S Dental Mfg Co Saliva ejector
US2185067A (en) * 1937-07-02 1939-12-26 Ohio Chemical And Mfg Company Apparatus for self-administration of anesthetics
FR865203A (en) * 1940-01-09 1941-05-16 Participations Ind Et Commerci Improvements to gas masks and their feeding devices
US2260701A (en) * 1939-07-28 1941-10-28 Walter M Boothby Oronasal mask
US2535938A (en) * 1946-12-27 1950-12-26 Charles F Lombard Inhaler apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US733026A (en) * 1902-07-11 1903-07-07 Frederick Tagliavia Tanini Inhaler.
US1683686A (en) * 1926-11-20 1928-09-11 John W Mcmillan Inhaling device
US2130406A (en) * 1935-04-18 1938-09-20 White S Dental Mfg Co Saliva ejector
US2185067A (en) * 1937-07-02 1939-12-26 Ohio Chemical And Mfg Company Apparatus for self-administration of anesthetics
US2260701A (en) * 1939-07-28 1941-10-28 Walter M Boothby Oronasal mask
FR865203A (en) * 1940-01-09 1941-05-16 Participations Ind Et Commerci Improvements to gas masks and their feeding devices
US2535938A (en) * 1946-12-27 1950-12-26 Charles F Lombard Inhaler apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3859997A (en) * 1971-09-30 1975-01-14 Becton Dickinson Co Reservoir bag for anesthesiology
US20050257791A1 (en) * 2004-05-21 2005-11-24 Biederman Paul D Capnography measurement adapter and airway mask system
US7500482B2 (en) * 2004-05-21 2009-03-10 Biederman Paul D Capnography measurement adapter and airway mask system
US11207476B2 (en) * 2016-04-18 2021-12-28 Inspiring Pty Ltd Flexible bag spacer device for an inhaler

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