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EP0175813B1 - Système de stockage et d'amenée d'un liquide pour un masque respiratoire - Google Patents

Système de stockage et d'amenée d'un liquide pour un masque respiratoire Download PDF

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Publication number
EP0175813B1
EP0175813B1 EP19840112046 EP84112046A EP0175813B1 EP 0175813 B1 EP0175813 B1 EP 0175813B1 EP 19840112046 EP19840112046 EP 19840112046 EP 84112046 A EP84112046 A EP 84112046A EP 0175813 B1 EP0175813 B1 EP 0175813B1
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EP
European Patent Office
Prior art keywords
liquid
storage means
canteen
liquid storage
mask
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19840112046
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German (de)
English (en)
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EP0175813A2 (fr
EP0175813A3 (en
Inventor
Wesley C. Schneider
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Individual
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Individual
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Publication of EP0175813A2 publication Critical patent/EP0175813A2/fr
Publication of EP0175813A3 publication Critical patent/EP0175813A3/en
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Publication of EP0175813B1 publication Critical patent/EP0175813B1/fr
Expired legal-status Critical Current

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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
    • A62B18/086—Adaptations for consuming refreshments without unmasking
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/16—Water-bottles; Mess-tins; Cups
    • A45F3/18—Water-bottles; Mess-tins; Cups of rigid material

Definitions

  • This application relates generally to delivery systems for liquids and, more particularly, to a system providing for the delivery of drinking liquids to a protective mask enabling the wearer of the mask to create a closed system for ingestion without exposing the liquid to contamination. This is known from US-A-4 505 310.
  • Chemical warfare has, in the past, been demonstrated to be of devastating physical and psychological effect. Chemical agents, such as toxic gases are pervasive, difficult to detect, create immediate and long-lasting disabling effects, and are available in substantial and sophisticated forms to cause a wide range of injury and/or disability from narcosis, discomfort, and disorientation all the way to paralysis and death.
  • Exemplary of a protective mask designed to meet such emergency situations is the mask illustrated and discussed in United States Patent No. 3,731,717, issued May 8, 1973.
  • Other versions of such masks include a full, overlapping hood which completely covers the wearer's head, neck, and portions of the shoulders, but which depends for its effectiveness upon a system of air filtration typified by the mask shown in the above-mentioned patent.
  • the wearer's incoming air supply is directed through a canister containing activated charcoal or other mechanical and chemical filtering agents selected to be effective against the particular chemical agent or agents expected to be encountered.
  • Other portions of the mask must form a substantially air-tight protective fit about the wearer's face and head. This is important because some chemical agents are absorbed not only through the respiratory system, but may enter the body through exposed skin surfaces.
  • Transparent eye pieces are provided to enable the wearer to see through the mask, however, the range of vision is somewhat obstructed by the non-transparent portions of the mask.
  • a mouthpiece mounted on the inside of the mask is positionable to engage the wearer's mouth.
  • An inlet tube attached to the mouthpiece extends through an air-tight fitting to the exterior of the mask, with the tube terminating in a plug.
  • a standard United States Army canteen is fitted with a cap having a built-in fitting to accept the plug formed at the end of the inlet tube so that when the plug is inserted into the cap, a closed system is created which includes the interior of the canteen, the interior of the cap and plug the inlet tube, and the mouthpiece.
  • a closed system is created which includes the interior of the canteen, the interior of the cap and plug the inlet tube, and the mouthpiece.
  • the plug When the user has finished drinking, the plug must be removed from the canteen cap, the protective flap must be sealed across the cap socket, and the canteen must be returned to its holder. During this operation, of course, the cap and plug are exposed to possible contamination by any chemical agents present in the air, and must he decontaminated prior to connection every time a drink is required.
  • U.S.-A-2,950,030 discloses a dispenser for hairdressing liquids in which a bulb pump is used to withdraw hairdressing liquids from a container .
  • the dispenser in this publication is dependent upon atmospheric pressure operating on the surface of the liquid (column 4, lines 58-61). Also the dispenser in this publication is dependent upon a particular orientation of the container (see column 4, lines 8 and 9).
  • the need exists for a liquid delivery system which would substantially overcome the above-identified problems, thereby adding to the security and continued health and well being of one forced to adopt the use of such protective clothing and masks for indeterminate periods of time.
  • the need also exists for such a delivery system to be readily adaptable to protective equipment already in widespread use, making deployment of such a system compatible to both old and newly-manufactured equipment.
  • the present invention provides a system for delivering liquid to a protective mask, said mask being of the type having a drinking mouthpiece assembly on the interior thereof, positionable at the mouth of a user for ingestion of said liquid and an inlet tube liquid-tightly attached to said mouthpiece and extending outside said mask, said system comprising a supply tube in liquid-tight fluid communication with said inlet tube; a plug assembly liquid-tightly attached to said supply tube; and a canteen assembly including means for storing a quantity of said liquid therewithin, said canteen assembly including means to couple said plug assembly liquid-tightly thereto: characterized by a hand pump which is liquid-tightly attached between said supply tube and said inlet tube; means for draining said liquid storage means, said draining means being liquid-tightly attached to said coupling means and disposed within said liquid storage means; said liquid storage means, said draining means, said coupling, and said plug, said supply tube, said pump, said inlet tube and said mouthpiece defining a liquid flowpath through which liquid may be withdrawn
  • the present invention also provides a system for delivering liquid to a protective mask, said mask being of the type having a drinking mouthpiece assembly on the interior thereof, positionable at the mouth of a user for ingestion of said liquid and an inlet tube liquid-tightly attached to said mouthpiece and extending outside said mask, said system comprising a supply tube in liquid-tight fluid communication with said inlet tube; a plug assembly liquid-tightly attached to said supply tube; and a canteen assembly including means for storing a quantity of said liquid therewithin, said canteen assembly including means to couple said plug assembly liquid-tightly thereto: characterized by a hand pump which is liquid-tightly attached between said supply tube and said inlet tube; means for draining said liquid storage means, said draining means being liquid-tightly attached to said coupling means and disposed within said liquid storage means; said liquid storage means, said draining means, said coupling, and said plug, said supply tube, said pump, said inlet tube and said mouthpiece defining a liquid flowpath through which liquid may be
  • Another feature of the present invention is a flexible drain tube attached to the interior of the canteen structure cap and extending into the canteen, and having a weighted end distal from the cap whereby the drain tube will automatically drop to the lowermost portion of the canteens, i.e., that portion of the canteen at which the liquid level is at its highest regardless of the position in which the canteen is held.
  • the supply tube is preferably coiled to present a compact, easily stored construction when not in use, and which may be stretched to connect the mask and the canteen structure, when the canteen structure is carried in a typically belt-worn carrying case. The canteen then need not be removed during the drinking operation.
  • a protective insulating sheath may be used to cover the supply tube as an added measure of protection against freezing, condensation, physical damage, or to coordinate use of the system with selected uniforms or camouflage requirements.
  • An additional chemical and/or mechanical filter may be inserted to provide an additional measure of protection against contamination of the liquid.
  • Hand-pumping of the bulb-type siphon pump thus provides a supply of liquid extending in a path from the interior of the canteen structure to the users mouth without being exposed to the atmosphere and, thereby, any chemical agent or contaminate present.
  • the pump may be supplied with a check valve preventing the contents of the supply tube from draining back into the canteen between uses, thus making it unnecessary to "prime” the system each time it is used.
  • Yet another aspect of the present invention involves the provision and use of a central reservoir or drinking/refilling tank structure to enable a user to drink therefrom by connecting the supply tube directly thereto, or to refill a depleted canteen by connecting a refill tube thereto and applying a sufficient pressure differential between the reservoir and the interior of the canteen to refill the canteen.
  • Fig. 1 is a view of the system of the present invention showing connection of the system to a protective mask
  • Fig. 2 is a perspective view of the cap and drain tube assembly insertable into the canteen structure
  • Fig. 3 is partial sectional view along 3-3of Fig. 1
  • Fig. 4 is a partial sectional view of one aspect of the present invention illustrating a canteen structure having an interior liner
  • Fig. 5 is a graphic illustration of the prior art
  • Fig. 6 is a graphic illustration of the use of the present invention
  • Fig. 7 is a partial perspective view of an adapter as part of the present invention
  • Fig. 8 is a perspective view of a protective sheath for the present system
  • Fig. 9 is a partial sectional view of an in-line filtration cartridge holder
  • Fig. 10 is a front elevation of a preferred embodiment of a central storage/dispensing reservoir
  • Fig. 11 is a perspective view of a second preferred embodiment of the reservoir of Fig. 10
  • Fig. 12 is a schematic view showing a preferred use of the reservoir of Figs. 10 and 11.
  • the numeral 10 indicates generally a protective mask of the type hereinabove described.
  • One such mask currently in distribution by the United States government is identified as the M17Al mask.
  • an inlet tube 11 extends, via voice transmitter housing 12 and fluid-tight fitting 13 to the interior of mask 10 where it is liquid tightly secured to a drinking mouthpiece not herein specifically shown.
  • Connection of the inlet tube to the mouthpiece may be made in any number of convenient or well-known manners to provide a permanent and durable liquid-tight fit.
  • the mouthpiece is hinged and spring-biased to remain away from the user's mouth during normal conditions.
  • An operating tab 14 extending to the exterior of mask 10 may be used to move the mouthpiece down toward the user's mouth where it may be grasped by the user until drinking is completed. Upon release, the tube will return to its original rest position within mask 10.
  • Inlet tube 11 is attached at its other end to bulb siphon pump 15 at fluid tight fitting 16, again, by any known method which provides a durable and liquid-tight connection.
  • Pump 15 is preferably formed of heavyweight rubber or rubber-like material which will flex easily when compressed by the user's hand, and which will retain its liquid-tight properties over extended periods of time.
  • the inlet side of pump 15 is attached to supply tube 17 at fluid-tight fitting 18.
  • Supply tube 17 is preferably permanently coiled about a substantial portion of its length, as shown at 19, so that it may be compactly stored yet may be extended over a relatively long distance.
  • Supply tube 19 terminates in plug 20 which, in the present preferred embodiment, is of a type already known and in use, its distinguishing characteristic being that it cooperates with a socket construction 21 which, in the preferred embodiment illustrated, is an integral part of canteen cap 22.
  • the plug structure shown in U.S. Patent No. 3,731,717 may be utilized. When assembled, plug 20 extends into canteen cap 22 as seen in Fig. 2.
  • Cap cover 52 may be provided as hingedly attached to cap 22 to cover and protect socket assembly 22 when not in use.
  • mechanical restraining means such as a rubber strap 57 or retaining spring, may be attached at one end to cap 22 and at the other end to plug 20 to prevent accidental disengagement.
  • cap construction 23 includes canteen cap 22, socket assembly 21, and drain tube 24 liquid tightly connected to socket assembly 21 as shown in 25.
  • connection of tubes such as drain tube 24 to socket assembly 21 may be accomplished in a number of well known manners to perform the function required in the present invention.
  • Drain tube 24 is formed of a thin, flexible, plastic material selected to avoid stiffening or hardening in low temperatures, and includes a ballast piece 26 positioned proximate inlet 27 of drain tube 24.
  • the weight of ballast piece 26 is selected to deflect drain tube 24 by the force of gravity downward within canteen 28 such that inlet 27 will be positioned at that point within canteen 28 where undispensed liquid will also be drawn by gravity. This result will obtain regardless of the position in which canteen 28 is placed.
  • numeral 28 indicates a canteen construction which, in a preferred embodiment, is formed from a heavy gauge polyethylene-type plastic material which, when properly shaped, may be flexed many times without suffering material fatigue and failure.
  • Fig. 5 illustrates generally use of a standard canteen 29 manufactured from the same type of material molded, however, into an essentially rigid structure not designed to flex during use. As will be hereinbelow discussed, the capability of canteen 28 to successfully absorb such flexing action is an important feature of the present invention.
  • canteen 28 of the present invention is preferably molded with a cross-section of individual stepped sections such as those shown at 32, 33, 34 and 35 joined at bends, or "knees" 36, 37, 38 and 39.
  • the combination of the stepped sections and bends enables the sides of canteen 28 to flex or partially collapse in a bellows-like manner in response to the differential in pressure caused by the draining of liquid from canteen 28. It is a well known characteristic of such plastic materials that they retain a living memory of the original shape within which they were molded and, when such bends are properly molded, may be distorted from and returned to said original shape many times without sustaining material fatigue or structural damage.
  • a canteen structure may include a more or less conventional rigid outer shell 40 within which a thin, flexible bag-like liner 41 may be disposed.
  • the liquid to be dispensed will be contained within liner 41.
  • liner 41 may be of a size to fill the interior of shell 40 and extend through the neck 42 of said shell, as at 47, thereafter to be sealed off by screwing cap 22 onto the threads 43 typically formed on the exterior surface of neck 42.
  • valve structure or plug
  • a valve structure, or plug may be utilized to allow the interior of shell 40 to communicate with the atmosphere.
  • liner 41 is free to collapse within rigid shell 40, allowing easy withdrawal of the liquid.
  • Valve or plug 44 may be constructed so as to create a liquid-tight seal when in the closed position so that shell 40 may be used as a canteen in a conventional manner without a liner where protection from contaminating agents is not a consideration.
  • liner 41 Once liner 41 is completely evacuated, it may be discarded and a fresh, sterile, liner inserted and refilled to provide another safe source of liquid.
  • inlet tube 11, pump 15, supply tube 17, and plug 20 remain integral with and permanently attached to mask 10, and may be conveniently and unobtrusively stored with mask 10 in a more or less conventional carrying container.
  • Fig. 6 Use of the present invention may be illustrated by referring to Fig. 6.
  • the user stretches supply tube 17 to enable plug 20 to reach canteen 28 carried, for example, in holder 46.
  • the user inserts plug 20 into cap 22 to complete a flow path from canteen 28 to the drinking mouthpiece in mask 10.
  • Retainer straps 48 may be provided to anchor pump 15 to the user's clothing in order to keep the position of pump 15 constant.
  • Plug 20 may be left permanently attached until canteen 28 is empty, thus obviating the need to reconnect the system everytime the user wishes to drink.
  • Fig. 7 illustrates yet another version of the present invention, and consists of a construction including plug 20, supply tube 17, pump 15, and an adapter including a liquid-tight connection to pump 15 at one end, and a connector 49 corresponding in construction to socket assembly 21 at the other end.
  • This version would enable attachment to the standard coupling arrangement now in use as shown in Fig. 5, and would convert such an arrangement to utilize the present invention.
  • Standard coupling 50 would then be connectable to adapter 49 and, thereby, to the remaining components in the present invention, making immediate conversion of all existing protective masks feasible.
  • Connection to adapter 49 may be done on an as-needed basis, under field conditions, using proper decontaminative procedures, or it could be done prior to such use on a permanent basis, to be stored with the mask.
  • Permanent connection may be enhanced by utilizing an air-tight protective covering formed, e.g. from shrink-wrap material to prevent disconnection and as added protection from air-borne chemical agents.
  • a protective sheath 51 is shown intended to provide protection to supply tube 17.
  • Sheath 51 may be insulated to counter such problems as freezing of liquid in supply tube 17 in cold weather, or preventing condensation along supply tube 17 in humid weather. Protection may also be afforded against dirt, abrasion, or kinking.
  • Sheath 51 may be provided in a variety of colors, based upon demands of uniform coloration or camouflage, or to indicate the conditions with which sheath 51 is intended for use, such as blue for cold weather, green for humid weather, and the like.
  • sheath 51 may be drawn over plug 20 and extend to or past pump 15, and may be stored with mask 10 until its use is required.
  • Other sheath constructions may be openable lengthwise, as by zippers, snaps, or the like, making use of such a sheath possible even after connection to canteen 28 has been made, without requiring disconnection and attendant decontamination of couplings.
  • a cartridge type combined mechanical and chemical filter may bemade a part of the present invention in a number of effective manners.
  • One such filter is of the general type wherein contaminants such as microorganisms and water-borne impurities are removed in a single pass from the liquid supply to the user's mouth by packings of both activated charcoal and microbicidal resins.
  • One such construction is described in United States Patent No. 4,298,475, and is sold under the trademark Pocket Purifier as manufactured by Calco, Ltd., of Rosemont, Illinois.
  • Said filtration element is preferrably provided in removable and replaceable versions insertable between canteen 28 and mask 10, and may find particular usefulness where canteens may have been filled with water which requires further treatment to make it safely potable, yet the canteens which hold the water cannot be opened for purification because of the presence of airborne chemical agents.
  • a filtration cartridge holder 53 is shown, adapted at one end 54 to couple with cap 22 of canteen 28, and at its other end 55 to couple with plug 20.
  • Holder 53 may have a filtration cartridge insert 56 of the general type described above removably held therein, which may be replaced when spent. While cartridge 56 may be placed wherever convenient, one advantage to placing it at canteen cap 22 is to avoid passible contamination of the system elements downstream of canteen 22. Use or replacement of holder 53 and cartridge 56 would be subjected to the same decontamination procedures followed when attaching plug 20 to cap 22.
  • Figs. 10-12 illustrate yet another aspect of the present invention.
  • a reservoir assembly 57 is shown having a rigid outer case 58 within which a flexible liner 59 is disposed.
  • liner 59 is shaped to conform to the shape of case 58 when liner 59 is filled with liquid.
  • Liner 59 is preferably formed from a heavy, high-density polyethylene material, or the like, which is sturdy and liquid-tight, and which allows the liquid-and-air-tight attachment thereto of values, couplings, and the like by, for example, heat welding or other commonly known fastening techniques.
  • Case 58 is formed with a lower case 60 to which a case lid 61 is attached at hinge 62, and a lock 63 secures lid 61 in the closed position.
  • lid 61 allows the replacement of liner 59 when the liquid has been depleted therefrom, or when a different type of liquid must be substituted.
  • Connectors 64, 65 and 66 are attached liquid-tightly to or near the bottom of liner 59 and, in the preferred embodiment herein shown, extend through openings formed in the bottom of lower case 60 (not specifically shown herein). To allow for such extension, legs 67 may be attached to the underside of power case 60.
  • bulb connector 64 may be used to connect suction tube 30 of prior art mask 31 to reservoir assembly 57 by providing connector adaptor 68 attached to supply line 69.
  • bulb siphon 70 is used to pump liquid from liner 59 to mask 31, to be ingested by the user thereof.
  • the user may connect to reservoir assembly 57 via bulb connector 64 or straight connector 65, by inserting plug 20 into connector adaptor 68 or a similar connector adaptor 71 formed on supply line 72 of straight connector 65.
  • plug 20 When a user attaches to straight connector 65, liquid is pumped from liner 59 through use of bulb 15 of mask 10.
  • a third variation of connector is exemplified by refill connector 66, which includes a refill bulb siphon 73, a supply line 74, and a fill plug 75.
  • Fill plug 75 is adapted to fit cap 22 of canteen assembly 40, as seen in Fig. 4.
  • Bulb siphon 73 may then be operated to draw liquid from liner 59 and pump it into canteen 40.
  • Fig. 12 there is shown a user 76 positioned to refill canteen 40 via connector 66, while drinking directly via connector 65, using mask bulb siphon 77.
  • reservoir assembly 57 be permanently attached and positioned, such as to the interior or exterior of a vehicle. Where, however, it is desireable to have a portable source of liquid replacement, a construction such as that shown in Fig. 11 is contemplated.
  • a rigid carrying case 78 is divided by a shelf 79 into upper and lower compartments 80 and 81, respectively.
  • a liner 82 formed from similar material as that of liner 59, is disposed within upper compartment 80, and is shaped and sized to fill compartment 80 when filled with liquid.
  • a filler cap assembly 83 may be formed as an integral part of liner 82, and, as shown, is preferably accessible outside of case 78.
  • Lower compartment 79 accommodates a range of connectors 84 which are attached to liner 82, and attachable to masks and canteen assemblies as heretofore described.
  • Compartments 79 and 80 are closed off by door 85, and the entire assembly may be conveniently carried by handle 86.
  • means may be provided to apply pressure to the liners 59/82 of reservoir assemblies 57/78 respectively.
  • an externally mantained source of compressed air drawn from the engine motor may be applied to the interior of case, 58 to collapse liner 59 as liquid is drawn therefrom.
  • gas cartridges such as those used to store CO2 gas may be used.
  • liners 59/82 are supplied prefilled with liquid, gas may also be introduced into such liners at the time of packaging to create such additional pressure.
  • Case 58 is preferably vented, as at 87 of Fig. 10, and said vents 87 are preferably of the type which will close when pressure is added to the interior of case 58.
  • FIG. 40 Another preferred method of facilitating the refilling of canteens such as 40 involves use of an adaptor 88 such as that shown in Fig. 12, interposed between canteen 40 and plug 75.
  • a valve 89 allows air selectively to enter canteen 40 and to be expelled from canteen 40 when displaced by liquid entering therein.
  • a filter element 90 protects against the entry of airborne toxic agents, and it is comtempleted that filter element 90 may contain the same filter media as that used by mask 10 to protect the wearer from said toxic agents.
  • a float valve (not herein specifically shown) is preferably included in said adaptor to prevent the liquid from reaching the filter element, if such protection is deemed necessary.
  • a reservoir such as 57
  • users thereof may hook up to reservoir 57 continuously, without unhooking.
  • a reservoir such as 57 or 78
  • proper procedures will be followed to decontaminate the connectors, plugs, etc. required for making such connections.
  • connectors attached to an individual reservoir may, of course, be varied to suit anticipated conditions of use.

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Claims (5)

  1. Système pour fournir un liquide à un masque de protection, ledit masque étant du type qui possède dans son volume intérieur un ensemble embout de boisson, qui peut se placer en position devant la bouche d'un utilisateur pour l'ingestion dudit liquide, et un tube d'entrée fixé à joint étanche aux liquides audit embout et s'étendant à l'extérieur dudit masque, ledit système comprenant un tube d'alimentation (17) qui est en communication fluidique à joint étanche aux liquides avec ledit tube d'entrée (11) ; un ensemble bouchon (20) fixé à joint étanche aux liquides audit tube d'alimentation (17) et un ensemble réserve (28) comprenant des moyens pour stocker intérieurement une certaine quantité dudit liquide, ledit ensemble réserve (28) comprenant des moyens (22) servant à raccorder ledit ensemble bouchon (20) à joint étanche aux liquides audit ensemble, caractérisé par une pompe à main (15) qui est intercalée à joint étanche aux liquides entre ledit tube d'alimentation (17) et ledit tube d'entrée (11) ; des moyens pour puiser dans lesdits moyens de stockage de liquide (28), lesdits moyens de puisage étant reliés à joint étanche auxdits moyens de raccordement (22) et étant disposés dans lesdits moyens de stockage de liquide (28) ; lesdits moyens de stockage de liquide (28), lesdits moyens de puisage (24), lesdits moyens de raccordement (22) et ledit bouchon (20), ledit tube d'alimentation (17), ladite pompe (15), ledit tube d'entrée (11) et ledit embout définissant un trajet de passage du liquide par lequel du liquide peut être soutiré desdits moyens de stockage de liquide ; ledits moyens de stockage de liqude (28) comprenant des moyens à mémoire élastique (32 à 39) qui permettent auxdits moyens de stockage de liquide de s'effondrer partiellement lorsqu'on soutire du liquide desdits moyens de stockage de liquide (28) pour compenser la différence de pression entre lesdits moyens de stockage du liquide et la pression atmosphérique lorsqu'on soutire ledit liquide sans l'exposer à l'atmosphère.
  2. Système pour fournir un liquide à un masque de protection, ledit masque étant du type qui possède dans son volume intérieur un ensemble embout, qui peut se placer en position devant la bouche d'un utilisateur pour l'ingestion dudit liquide, et un tube d'entrée fixé à joint étanche aux liquides audit embout et s'étendant à l'extérieur dudit masque, ledit système comprenant un tube d'alimentation (17) qui est en communication fluidique à joint étanche aux liquides avec ledit tube d'entrée (11) ; un ensemble bouchon (20) fixé à joint étanche aux liquides audit tube d'alimentation (17) et un ensemble réserve (40) comprenant des moyens (41) pour stocker intérieurement une certaine quantité dudit liquide, ledit ensemble réserve (40) comprenant des moyens (22) servant à raccorder ledit ensemble bouchon (20) à joint étanche aux liquides audit ensemble, caractérisé par une pompe à main (15) qui est intercalée à joint étanche aux liquides entre ledit tube d'alimentation (17) et ledit tube d'entrée (11) ; des moyens pour puiser dans lesdits moyens de stockage de liquide (41), lesdits moyens de puisage étant reliés à joint étanche auxdits moyens de raccordement (22) et étant disposés dans lesdits moyens de stockage de liquide (41) ; lesdits moyens de stockage de liquide (41), lesdits moyens de puisage (45), lesdits moyens de raccordement (22) et ledit bouchon (20), ledit tube d'alimentation (17), ladite pompe (15), ledit tube d'entrée (11) et ledit embout définissant un trajet de passage du liquide par lequel du liquide peut être soutiré desdits moyens de stockage de liquide ; ledit ensemble réserve comprenant une coque extérieure (40) qui se termine par une portion goulot (43), lesdits moyens de stockage de liquide comprenant une doublure souple (41) en forme de vessie disposée dans ladite coque, et des moyens d'évent (44) prévus dans ladite coque (40) pour compenser la différence de pression entre lesdits moyens de stockage de liquide et la pression atmosphérique lorsque ledit liquide est soutiré sans exposer ledit liquide à l'atmosphère.
  3. Système selon la revendication 1 ou 2, caractérisé en ce que lesdits moyens formant Pompe à main comprennent une pompe du type syphon à poire (15).
  4. Système selon la revendication 1 ou 2, caractérisé par un recouvrement isolant (51) qui peut être placé au moins sur ledit tube d'alimentation (17).
  5. Système selon la revendication 1 ou 2, caractérisé en ce que lesdits moyens de puisage comprennent un tube de puisage (24) qui est fixé à joint étanche auxdits moyens de raccordement (22) et disposé à l'intérieur desdits moyens de stockage de liquide (28).
EP19840112046 1984-09-26 1984-10-08 Système de stockage et d'amenée d'un liquide pour un masque respiratoire Expired EP0175813B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US65412184A 1984-09-26 1984-09-26
US654121 1991-02-14

Publications (3)

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EP0175813A2 EP0175813A2 (fr) 1986-04-02
EP0175813A3 EP0175813A3 (en) 1987-01-14
EP0175813B1 true EP0175813B1 (fr) 1991-05-02

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CA (1) CA1249798A (fr)
DE (1) DE3484538D1 (fr)

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Publication number Priority date Publication date Assignee Title
US5524612A (en) * 1994-11-22 1996-06-11 Chen; Jiunn-Liang Drinking device for divers
CN107661581A (zh) * 2016-07-28 2018-02-06 北京安氧特科技有限公司 一种正压式氧气呼吸器面罩内饮水和排汗装置
KR102093517B1 (ko) * 2019-05-21 2020-03-25 채영도 미세먼지 차단 마스크

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1366438A (en) * 1918-10-18 1921-01-25 Otto F Wagenhorst Liquid-food container
US2950030A (en) * 1958-06-23 1960-08-23 Marion S Pump Dispenser for hairdressing liquids
US3645261A (en) * 1970-08-04 1972-02-29 Us Army Drinking and resuscitation mask

Also Published As

Publication number Publication date
EP0175813A2 (fr) 1986-04-02
EP0175813A3 (en) 1987-01-14
CA1249798A (fr) 1989-02-07
DE3484538D1 (de) 1991-06-06

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