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EP0771577A1 - Verbindungsblock für Atemmaske, sowie dazugehörige Maske, Helm und Taucherlunge - Google Patents

Verbindungsblock für Atemmaske, sowie dazugehörige Maske, Helm und Taucherlunge Download PDF

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Publication number
EP0771577A1
EP0771577A1 EP96402326A EP96402326A EP0771577A1 EP 0771577 A1 EP0771577 A1 EP 0771577A1 EP 96402326 A EP96402326 A EP 96402326A EP 96402326 A EP96402326 A EP 96402326A EP 0771577 A1 EP0771577 A1 EP 0771577A1
Authority
EP
European Patent Office
Prior art keywords
block
mask
inspiration
mounting means
connector
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.)
Withdrawn
Application number
EP96402326A
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English (en)
French (fr)
Inventor
Claude Pascal Berend
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.)
Comasec International SA
Original Assignee
Comasec International SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Comasec International SA filed Critical Comasec International SA
Publication of EP0771577A1 publication Critical patent/EP0771577A1/de
Withdrawn legal-status Critical Current

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Classifications

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

Definitions

  • the invention relates to a connecting block or snout intended for a respiratory protective mask, a protective mask provided with such a connecting block, as well as a protective helmet and a diving suit comprising such a mask.
  • document FR-A-1,575,820 describes a protective mask provided with a protective compartment in the form of a connecting block.
  • the block comprises an anteroom, a protective grid, a coupling connection as well as means for mounting an internal mask, an exhalation valve, an inspiration valve, d 'a conversation membrane.
  • a mask body includes a front opening, of a shape complementary to that of the connection block and in which the latter is embedded, from the inside.
  • connection block is in abutment against a shoulder of the mask body, at the inner peripheral edge of the front opening of the latter.
  • document FR-A-2,692,793 describes a plug-in connection block provided with a sealing ring.
  • the front opening is in the form of a complex or left surface.
  • the assembly of the block and the body is delicate.
  • connection block in particular for cleaning, is tedious, risk of damaging the mask and impairing its operation.
  • EP-A-511 592 describes a respiratory protection mask, which can be used as a mask at ambient pressure, overpressure or in a closed circuit.
  • the mask body includes an integral bayonet coupling, provided for this purpose.
  • the invention therefore aims to remedy these drawbacks.
  • the invention relates to a connecting block or snout intended to be mounted in a front opening of a respiratory protection mask body.
  • the connecting block includes breathing means; as well as removable fixing means on the mask body.
  • a substantially planar front positioning face of the block is delimited externally by a generally cylindrical guide surface and the generator of which is extended along an axis substantially perpendicular to the positioning face, so that in an assembled state, the latter is in abutment against a shoulder before the opening of the mask body, while the guide surface, housed with clearance in the opening, comprises a peripheral groove for housing a seal, for example an O-ring with a circular cross section.
  • the guide surface is a cylinder based on a rounded external contour, for example circular, oblong or oval.
  • the base has an ovoid external contour, with a large upper radius centered on means for mounting an inspiration coupling coupling, while a small lower radius is centered on means for mounting an exhalation valve.
  • the respiratory means comprise at least one anteroom; means for mounting an interior mask, an inspiration coupling connection, an exhalation valve and possibly a conversation membrane and / or a protective grid, for example so to be formed with the removable fixing means, a single piece of molded synthetic material or the like.
  • the removable fixing means are distinct and at a distance from the guide surface and / or from the positioning face, and are for example arranged near or partly merged with means for mounting a connection d inspiration coupling.
  • a feature provides that removable fixing means are essentially constituted by the means for mounting an inspiration coupling connector.
  • the means for mounting a screwable inspiration coupling connector include a safety system capable of opposing disengagement by unscrewing the inspiration coupling connector, except when it is intentionally disabled.
  • the security system for example with ratchet, is generally arranged coaxially and / or inside a screwing hole for means for mounting the inspiration connector.
  • the security system comprises a pawl, for example with displacement parallel to a so-called axial direction of screwing of the inspiration connector, and is intended to enter or leave the socket with teeth of complementary shape, integral an axial end of the inspiration fitting.
  • the security system comprises an unlocking mechanism, for example a finger capable of causing the disengagement of a toothing of a pawl and of the connector, the mechanism possibly being accessible exclusively using a tool as key.
  • an unlocking mechanism for example a finger capable of causing the disengagement of a toothing of a pawl and of the connector, the mechanism possibly being accessible exclusively using a tool as key.
  • the breathing means are substantially extended in an axial direction generally parallel to a so-called axis of revolution, located in the vertical plane of symmetry of the head of the wearer, tilted horizontally and vertically and passing substantially in or near the middle area of the wearer's brain and the lip area, with respect to a mask in a position corresponding to a wearer with a straight head and the horizontal viewing axis.
  • a plane along which the positioning face is generally extended makes an angle of the order of 45 ° with the horizontal, relative to a carrier having the right head and the horizontal viewing axis.
  • the block is arranged so that it projects from the positioning face towards the axis of vision, in the direction of the axis of revolution.
  • connection block comprises means for mounting a screwable inspiration connector, provided with a polarizing device such as a rod projecting in an axial direction, inside a screwing orifice of the connection.
  • the means for mounting a fitting comprise an internal cylindrical surface with circular section, centered on an axis of the mounting means, and intended to cooperate radially with the outside of an O-ring mounted on a fitting, when the latter cooperates with the mounting means, for example by screwing.
  • connection block comprises means for mounting an inspiration connector, arranged so as to open directly outside the block, in order to guide an antifogging sweeping flow from inside the mask body, and for example from its eyepiece, during inspiration.
  • the block comprises in one embodiment a substantially confined or "closed” circulation circuit, separate and distinct from the means for mounting an inspiration connector.
  • the block includes means for mounting a conversation membrane, such as a screw cap.
  • Another object of the invention is a respiratory protection mask comprising a connecting block as mentioned.
  • the mask body is essentially constituted by an eyepiece, a transparent, curved wall, bounded by a curved outer edge, is provided with the front opening with which the connection block cooperates, the latter being housed from the inside the mask body.
  • the mask comprises on the mask body, a boss provided with the front opening and in which is partially housed the connecting block, as well as a cover of shape substantially complementary to that of the boss and mounted externally. on the latter.
  • the mask comprises a cover mounted externally on the mask body, with which the removable fixing means of the connection block cooperate, so that the block and the body are rigidly fixed to each other in a removable manner, by means of the hood.
  • An embodiment of a mask comprises a clamp limiter of the removable fixing means, such as a hood mounted on the mask body and against which a clamping piece, for example a screw-on inspiration connector, is placed in abutment axially when a predetermined maximum force is applied to the fixing means.
  • a clamp limiter of the removable fixing means such as a hood mounted on the mask body and against which a clamping piece, for example a screw-on inspiration connector, is placed in abutment axially when a predetermined maximum force is applied to the fixing means.
  • any effort greater than the maximum effort is collected - not by the fixing means - by the limiter placed in abutment (for example the hood).
  • Another embodiment provides a flow and moisture drainage circuit, such as a passage on the connection block and another passage substantially opposite on a hood.
  • One feature provides an inner mask having a bellows, for example in crescent and facing the mask body, in order to allow a reversible elastic deformation of the inner mask, of adaptation of the latter to the morphology of a wearer of the mask.
  • the mask comprises, according to one embodiment, at least one inspiration valve comprising a flexible membrane and a support.
  • inspiration valve comprising a flexible membrane and a support.
  • the latter is mounted on an inner mask and the membrane is mounted on this support.
  • a valve on each side of the inner mask is common.
  • a particularity of this membrane is that it is prestressed on its support.
  • a membrane on a flat support tends, under its own weight to deform, which affects its operation and especially in terms of sealing and sealing.
  • a seat of the support has a cylindrical shape, while the membrane put in place on this one also takes this cylindrical shape, which tends to stiffen the membrane (under the compressive and tensile stresses of on either side of a neutral line).
  • the prestressing of the membrane is obtained by the fact that it has, at rest, a shape substantially inscribed in a cylindrical envelope with convexity facing the support.
  • a third object of the invention relates to a protective helmet comprising a connection block and / or a mask as described above.
  • the invention relates to a protective suit comprising a connecting block and / or a mask as described above.
  • Figure 1 is a schematic sectional view through a vertical azimuthal median plane of a respiratory mask comprising a connecting block or snout according to the invention, shown in normal situation on the head of a wearer.
  • Figure 2 is a front view, from above of an embodiment of the connecting block according to the invention, in the form of a molded plastic part.
  • Figure 3 is a schematic view showing, on the one hand of a median line (on the left) a half connecting block according to the invention, provided with teeth as well as a polarization, and on the other hand of the line middle (right) a hood fitted with an unlocking mechanism.
  • Figure 4 and a front view of a gear ring of a security system according to the invention.
  • FIG. 5 is an exploded view, along arrow V of FIG. 4, of the crown as well as of a biasing spring (on the left) of a screw-in inspiration inspiration connection (on the right) and of a seal.
  • Figure 6 is a sectional view along line VI-VI of the connection block of Figure 2, which is provided with concave internal shapes for guiding a ratchet toothed crown as well as a keyed, obtained by change of a removable core of a mold for injecting a single piece of the connection block.
  • FIG. 7 is a side elevation view of an inspiration valve comprising a flexible membrane prestressed on a support with a seat in a bowl, itself designed to be mounted for example on an inner mask or half mask.
  • the reference 1 designates a mask body, here essentially composed of an eyepiece.
  • the body and the eyepiece are designated here by the same reference 1.
  • This eyepiece 1 is specially adapted and intended for a respiratory protection mask 2.
  • Such a mask 2 is, according to a typical application, intended for firefighters.
  • the mask 2 also comprises a skirt 3 of generally annular shape intended to be placed around the eyepiece 1, towards the outside, by being rigidly connected to it.
  • the eyepiece 1 comprises, for this purpose, on its large external peripheral free edge 4, a flange 5 forming an integral part of it, directed towards the outside of the eyepiece 1 and on which the free edge of the skirt 3 is folded .
  • the assembly is made rigid by a U-shaped tightening joint 6.
  • the skirt 3 provides the sealing connection between the eyepiece 1 and the face V of a wearer R.
  • the mask 2 also includes an inner mask 7 as well as respiratory devices and / or means.
  • Such a mask 2 can be integrated (FIG. 1) into a helmet 2a or a spacesuit 2b of which it then forms an integral part.
  • the eyepiece 1 essentially comprises a one-piece transparent wall 9 shaped so as to fulfill the various functions of the eyepiece.
  • the wall 9 is shaped by being curved with an overall concavity turned towards the face V of the wearer R, that is to say inside the eyepiece 1, while the convexity is turned towards the outside.
  • the eyepiece 1, that is to say the transparent wall 9, is here made of polycarbonate.
  • the wall 9 has a thickness equal to or of the order of 3 mm.
  • the wall 9 is limited by the edge 4, which defines a first large rear opening 10 intended to be placed facing and in the vicinity of the face V.
  • the wall 9 has a second lower opening 11 called “front opening”, with which is intended to cooperate a connecting block or snout A, forming part of the respiratory device.
  • the wall 9 forms around the front opening 11 an annular shoulder 12, substantially planar, intended to position the connection block A.
  • the eyepiece 1 is therefore limited, downwards, by a plane P (FIG. 1) which - relative to a carrier R having the right head and a horizontal axis of vision S - makes an angle J with the horizontal ( Figure 1) of the order of 45 °.
  • This plane P includes the front opening 11 and the shoulder 12.
  • This position is only relative, the mask 2 (and / or its components) being able to occupy any other position, whether in use or out of use (storage, storage, etc.).
  • the block A intended to be mounted in the concavity, and in particular in the front opening 11, of the body 1 of mask 2 for respiratory protection.
  • the connecting block A comprises means 19 for breathing, forming part of or constituting the respiratory device 8.
  • Means 20 for removable attachment to the mask body 1 are also provided.
  • a substantially flat front positioning face 21 of the block A is delimited externally by a guide surface 22, generally cylindrical.
  • the generator of the surface 22 visible in FIG. 6 is extended parallel to an axis 16, substantially perpendicular to the positioning face 21.
  • the face 21 is in abutment against the front shoulder 12 of the opening 11 of the body 1.
  • the guide surface 22 is then housed with clearance in the opening 11.
  • a draft such that the surface 22 is very slightly flared inward, and for example of the order of half a degree, is here provided.
  • FIG. 2 shows that the surface 22 of the block A has a peripheral groove 23 for housing a seal 24.
  • the seal 24 is O-ring, of substantially circular cross section, and comprises a silicone or the like.
  • This arrangement which can be likened to an axial abutment against a plane, combined with a mounting guide with radial clearance and interposition of a seal, distinguishes the invention from built-in or plug-in assemblies.
  • the guide surface 22 is a cylinder based on a rounded external contour.
  • the outline is circular or oblong.
  • the base has an ovoid external contour, with a large upper radius centered on mounting means 25 of an inspiration coupling connection, such as those visible in FIGS. 1 and 5 .
  • a small lower radius of the contour of the surface 22 is centered on means 15 for mounting an exhalation valve 29.
  • Such a structure makes it possible to optimize the ergonomics of the mask 2, the body 1 of which thus follows the "tip" of the lower face V of a wearer R.
  • the large upper radius offers technically significant sizing, comfort and usable volume.
  • the block A is generally in the form of a truncated cylinder with an ovoid cross section, and truncated at a bevel.
  • truncated here means that the cylinder is delimited in its axial direction 16, by two intersecting planes, the intersection of which is located at an outside distance from the block A.
  • Block A substantially inscribed between two planes, one outside close to the opening 11, the other inside close to the face V of a wearer, makes it possible to obtain a particularly compact structure - not bulky - and ergonomic, as well than having excellent mechanical resistance qualities. Compared to known structures, block A does not present any zone of least resistance such as a flat and thin wall.
  • the two limit planes of block A form, with respect to each other, an angle less than 45 °, in particular between 40 ° and 20 °, and for example of the order of 30 °.
  • a function of block A is to integrate the breathing means 19, to allow the wearer a conversation, and to direct the flows in the mask 2, in particular to evacuate the excess moisture (fogging, etc.).
  • the mounting means 28 of the inner mask 7 include the groove 23 and in the latter, a male index intended to cooperate with a female index on the inner mask 7, in order to avoid any mounting and positioning errors of the latter. on block A.
  • the reference 30 designates in FIG. 1 an inspiration valve, mounted on the block A via the mask 7, and therefore means 28.
  • FIG. 7 illustrates an example of a valve 30.
  • the mask 2 comprises, according to this embodiment, a flexible membrane 53 and a support 54 which form the valve 30.
  • the support 54 At the outer periphery of the support 54 is extended a peripheral groove for mounting this support 54 in an orifice of predetermined size (diameter), of the inner mask 7.
  • the support 54 is therefore mounted by elastic stapling or "clipping" on the mask interior 7. This assembly is waterproof.
  • the membrane 53 is mounted on a central pin 55 with a peripheral groove, by "clipping".
  • a special feature of this membrane 53 is that it is prestressed on its support 54.
  • a membrane on a flat support tends, under its own weight, to deform, which impairs its functioning, and especially in terms of sealing and sealing.
  • a seat of the support 54 has a cylindrical shape, while the membrane placed on it also takes this cylindrical shape, which tends to stiffen the membrane (under the compressive and tensile stresses on both sides). other from a neutral line).
  • the prestressing of the membrane 53 is obtained by the fact that it has, at rest, a shape substantially inscribed in a cylindrical envelope with convexity facing the support 54.
  • the block A forms with the removable fixing means 20, a one-piece piece of molded synthetic material.
  • This material is here a polyamide such as Noryl, or the like.
  • the removable fixing means 20 are distinct and at a distance from the guide surface 22.
  • the removable fixing means 20 are also at a distance from the positioning face 21.
  • these means 20 are arranged near or partly coincident with mounting means 25 of the inspiration coupling connector 26.
  • the removable fixing means 20 are essentially constituted by the mounting means 25 of the inspiration coupling connector 26.
  • An advantage of block A according to the invention consists in that, for the manufacture of a block A intended to receive one of these connections, only a molding core corresponding to the means 26 in terms of form of means (threading, etc.), dimensions and complementarity (presence in the absence of a polarizing device, etc.) is to be interchanged with another core corresponding to a block A for other connections. This is both simple and economical.
  • FIGS. 3 to 5 it can be seen that the mounting means 25 of the screw-on coupling coupling of inspiration 26 comprise a safety system 33.
  • the security system 33 is capable, except when it is voluntarily deactivated, of opposing disengagement (here by unscrewing) from the inspiration coupling connector 26.
  • the security system 33 is generally arranged coaxially and inside an orifice 34.
  • the orifice 34 allows the inspiration connector 26 to be screwed in, and therefore forms part of the mounting means 25 .
  • the security system 33 illustrated comprises a pawl 35.
  • the pawl 35 is here in displacement parallel to the axial direction 16 of screwing in the inspiration connector 26.
  • This axial movement is intended to bring in or out of engagement with a toothing 36 of complementary shape integral with an axial end of the inspiration connector, another toothing 37 integral with the block A.
  • the member 39 is a circular leaf spring with opposing notches, arranged so as to constantly exert on the crown 38, a force oriented towards an engagement position of its teeth 37 with the teeth 36 of the inspiration fitting. 26.
  • the spring 39 is mounted at the bottom of the orifice 34.
  • crown 38 is guided in the axial direction 16 in this orifice 34, by two axial tabs 40.
  • Each of these legs 40 has an oblong opening 41 capable of cooperating with a stud 42 integral with the interior of the orifice 34.
  • a stud 42 guides the edges of a corresponding slot 41 .
  • the legs 40 project symmetrically from the crown 38, in the axial direction, from the external periphery of the crown 38, in a direction opposite to the teeth 37.
  • the security system 33 includes an unlocking or deactivation mechanism 43.
  • This mechanism 43 mainly comprises here an external peripheral toothing (radially protruding and axially extended) 44 on the crown 38, as well as an additional internal peripheral toothing 45 on the body 1.
  • the teeth 44 and 45 guide the crown 38 axially and make it possible to separate the teeth 36 and 37 from the pawl.
  • the connector 36 is released in rotation and can be unscrewed.
  • the toothing 45 has come integrally with the screwing orifice 34.
  • the mechanism 43 comprises a finger 46 for disengagement.
  • the finger 46 is capable of causing the disengagement of the toothing 44 and of the connector 26.
  • the mechanism 43 is accessible exclusively using a tool such as a key, designed to be introduced into the orifice 34.
  • the spring located inside the orifice also urges the mechanism so that in the absence of voluntary human intervention, the teeth are normally engaged and in the locked state.
  • the breathing means 19 are substantially extended in the axial direction which is defined by an axis called revolution also designated at 16, located in the vertical plane of symmetry of the head of the carrier R.
  • the axis 16 is inclined on the horizontal and the vertical and passes substantially in or near the median zone of the brain of the wearer R and the lip zone, with respect to a mask 2 being in a reference position.
  • a plane P along which the positioning face 21 is generally extended makes an angle J of the order of 45 ° with the horizontal, relative to a carrier R having the right head and the axis of vision S horizontal.
  • the block A is arranged so that it projects from the positioning face 21 towards the axis of vision S, in the direction of the axis of revolution 16.
  • connection block A comprises mounting means 25 for a screw-on inspiration connector 26, provided with a polarizing device 47 such as a rod. projecting in the axial direction 16 as well as inside the screwing hole 34 of the connector 26.
  • the mounting means 25 of the inspiration connector are arranged so as to open directly out of the block A, in order to guide an anti-fog flow B of scanning from inside the mask body 1, and for example from its eyepiece 9, during inspiration.
  • the means for mounting the conversation membrane 31, here a screw cap form a female thread in the face of the block A axially opposite to the face 21.
  • Block A defines, from the interior mask 7 to the exterior, via the anteroom 27 and the proximity of the exhalation valve 29, a circulation circuit which is substantially closed, separate and distinct from mounting means 25 of the connector. of inspiration.
  • connection block A is housed from inside the mask body 1.
  • connection block A cooperates with the cover 48, so that the block A and the body 1 are rigidly fixed to one another in a removable manner, by means of the cover 48.
  • the mask 2 comprises a clamp limiter of the removable fixing means 20. This is here the cover 48 mounted on the mask body 1 and against which a clamping piece - the connector 26 - comes into abutment axially when a force predetermined maximum is applied.
  • This embodiment provides as a flow and drainage circuit for humidity, a passage 49 on the block A and another passage 50, substantially opposite, on the hood 48.
  • the inner mask 7 has a bellows D, crescent and facing the mask body 1, in order to allow a reversible elastic deformation of the inner mask 7 for adapting the latter to the morphology of a wearer R of mask 2.
  • a flat part is notably located in a vertical plane (or close to the vertical) when the eyepiece is in the reference situation.
  • the collar 5 Towards its upper part, the collar 5 is curved downwards, from front to back.
  • the wall 9 Apart from the flange 5 and the shoulder 12, the wall 9 has an upper part 13 forming the usual binocular field of vision of the wearer and a lower part 14 extending the upper part down continuously, that is to say without breaking.
  • this constructive characteristic does not exclude the presence between the parts 13 and 14 of a relief such as a hollow, or even an inflection.
  • the upper part 13 is of so-called spheroconical shape and generated by the displacement of an arc of a circle C (FIG. 1) rotating, over a given sector, around the axis of revolution 16.
  • the latter is located in a vertical plane of symmetry of the head of the carrier R.
  • the axis 16 is inclined from front to back and from bottom to top relative to the head of the carrier R in the reference situation.
  • the axis 16 makes with the horizontal an angle ⁇ equal to or close to 43 °.
  • the radius of curvature of the arc of a circle C is, in the embodiment shown, of the order of 632 to 636 mm.
  • the edge 4 delimits an upper end 17 of the eyepiece 1 and a lower end 18.
  • the eyepiece 1 once produced, for example by molding, is in certain cases subjected to a hardening and / or anti-scratch treatment.
  • a gold plating is in some embodiments applied to the outer surface of the eyepiece, in order to increase its repellency and thermal insulation qualities.
  • FIGS. 1 and 5 By bringing FIGS. 1 and 5 together, it is understood that the invention makes it possible to obtain a seal at two locations by bringing an O-ring into contact against an extended surface substantially in a direction of assembly of the two parts (9 and A ; 26 and A) between which sealing is desired.
  • a seal 60 here an O-ring with circular section, is mounted in a groove in the connector 26.
  • the mounting means 25 of this connector comprise an internal cylindrical surface with circular section, extended as follows, as well as centered on the axis 16, and intended to cooperate radially with the outside of the O-ring 60, when the connector 26 cooperates with the mounting means 25.
  • the seal is thus obtained even before the complete screwing of the connector 26, along a zone device perpendicular to axis 16, and independently of the complete fitting of the fitting.

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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)
  • Helmets And Other Head Coverings (AREA)
  • Lenses (AREA)
EP96402326A 1995-11-03 1996-10-31 Verbindungsblock für Atemmaske, sowie dazugehörige Maske, Helm und Taucherlunge Withdrawn EP0771577A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9513011 1995-11-03
FR9513011A FR2740689B1 (fr) 1995-11-03 1995-11-03 Oculaire destine a un masque de protection respiratoire, masque pourvu de l'oculaire et casque et scaphandre pourvu du masque

Publications (1)

Publication Number Publication Date
EP0771577A1 true EP0771577A1 (de) 1997-05-07

Family

ID=9484214

Family Applications (2)

Application Number Title Priority Date Filing Date
EP96402325A Withdrawn EP0776680A1 (de) 1995-11-03 1996-10-31 Gesichtsschutzstück für Atemschutzmaske und dazugehörige Maske, Helm und Tauscherlunge
EP96402326A Withdrawn EP0771577A1 (de) 1995-11-03 1996-10-31 Verbindungsblock für Atemmaske, sowie dazugehörige Maske, Helm und Taucherlunge

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP96402325A Withdrawn EP0776680A1 (de) 1995-11-03 1996-10-31 Gesichtsschutzstück für Atemschutzmaske und dazugehörige Maske, Helm und Tauscherlunge

Country Status (2)

Country Link
EP (2) EP0776680A1 (de)
FR (1) FR2740689B1 (de)

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FR2786107A1 (fr) * 1998-11-25 2000-05-26 Sextant Avionique Masque inhalateur d'oxygene avec dispositif de prise de son
US9364632B2 (en) 2010-08-19 2016-06-14 Koninklijke Philips N.V. Manually actuated talk valve for a respiratory device
EP3061502A1 (de) * 2015-02-24 2016-08-31 The Johns Hopkins University Stromlose atemschützende haube und maske mit schutz vor beschlagen der sichtscheibe

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US1777383A (en) 1927-07-21 1930-10-07 Seignol Edouard Self-feeding carburetor
US2344718A (en) 1940-04-08 1944-03-21 Silas A Morehouse Oxygen mask
FR1575820A (de) 1967-06-03 1969-07-25
US3545436A (en) 1967-07-21 1970-12-08 Automatic Sprinkler Corp Face seal
US3457564A (en) 1967-07-21 1969-07-29 Automatic Sprinkler Corp Head harness
US3540442A (en) 1967-08-10 1970-11-17 Automatic Sprinkler Corp Face mask microphone mounting
US3833935A (en) 1972-05-22 1974-09-10 Sierra Eng Co Integrated helmet and mask structure
EP0311516A1 (de) * 1987-10-06 1989-04-12 Fernez S.A. Anschlussstück für eine Atemschutzmaske und Maske mit einem solchen Anschlussstück
US5069205A (en) 1990-04-20 1991-12-03 Figgie International, Inc. Quick-donning head harness assembly
EP0511592A1 (de) 1991-04-30 1992-11-04 DISPOSITIVI PROTEZIONE INDIVIDUALE - D.P.I. s.r.l. Schutzmaske mit auswechselbaren Anschlussstutzen gebraucht bei Intervenienzarbeiten in verschmutzten Umgebungen
DE4220780C1 (de) * 1992-06-25 1993-09-23 Draegerwerk Ag, 23558 Luebeck, De
FR2692793A1 (fr) 1992-06-25 1993-12-31 Draegerwerk Ag Masque de protection respiratoire avec dispositif de communication orale.
US5279286A (en) * 1992-07-29 1994-01-18 Chen Kwang Ho Mask

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2786107A1 (fr) * 1998-11-25 2000-05-26 Sextant Avionique Masque inhalateur d'oxygene avec dispositif de prise de son
WO2000030716A1 (fr) * 1998-11-25 2000-06-02 Thomsom-Csf Sextant Masque inhalateur d'oxygene avec dispositif de prise de son
AU756473B2 (en) * 1998-11-25 2003-01-16 Thomsom-Csf Sextant Oxygen inhaler mask with sound pickup device
US6997178B1 (en) 1998-11-25 2006-02-14 Thomson-Csf Sextant Oxygen inhaler mask with sound pickup device
US9364632B2 (en) 2010-08-19 2016-06-14 Koninklijke Philips N.V. Manually actuated talk valve for a respiratory device
EP3061502A1 (de) * 2015-02-24 2016-08-31 The Johns Hopkins University Stromlose atemschützende haube und maske mit schutz vor beschlagen der sichtscheibe
US11697036B2 (en) 2015-02-24 2023-07-11 The Johns Hopkins University Unpowered respiratory protective headset and body suit and additional improvements to personal protective equipment

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EP0776680A1 (de) 1997-06-04
FR2740689A1 (fr) 1997-05-09
FR2740689B1 (fr) 1998-01-23

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