EP0146161B1 - Adjustable hose connection valve for breathing-air supply - Google Patents

Adjustable hose connection valve for breathing-air supply Download PDF

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Publication number
EP0146161B1
EP0146161B1 EP84201661A EP84201661A EP0146161B1 EP 0146161 B1 EP0146161 B1 EP 0146161B1 EP 84201661 A EP84201661 A EP 84201661A EP 84201661 A EP84201661 A EP 84201661A EP 0146161 B1 EP0146161 B1 EP 0146161B1
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EP
European Patent Office
Prior art keywords
wall
adjustable connecting
valve according
connecting valve
air
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Expired - Lifetime
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EP84201661A
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German (de)
French (fr)
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EP0146161A3 (en
EP0146161A2 (en
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Gilbert Vandeputte
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Individual
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Individual
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Priority claimed from BE2/60262A external-priority patent/BE898263R/en
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Priority to AT84201661T priority Critical patent/ATE49895T1/en
Publication of EP0146161A2 publication Critical patent/EP0146161A2/en
Publication of EP0146161A3 publication Critical patent/EP0146161A3/en
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Publication of EP0146161B1 publication Critical patent/EP0146161B1/en
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/02—Valves

Definitions

  • a known adjustable connection valve BE-A-895 415 for the supply of respiratory air essentially consists of four elements, namely a first element, to which is connected a cap, with which can cooperate, in a sealed manner air, filter of a gas mask or other similar device; a second element, to which is connected an air supply pipe and which, at its free end, is closed and is provided with at least one passage, this second element being capable of being displaced relative to the first element; a third element which lends itself by its displacement to the opening or closing of the valve and also having an air passage opening; and a fourth element comprising a spring tending to maintain the valve in its closed position or to bring it to this position; a special feature of the connection valve according to this prior patent consisting in that the air passage openings, which must be able to cooperate in an adjustable manner to ensure the supply of air to the connected filter of the gas mask or another similar device extend radially in tubular elements.
  • the present invention relates to improvements, of the aforementioned valve, consisting mainly in that the aforesaid air passage openings are arranged axially in various mutually cooperating elements of the connecting valve, which has, among other things, the advantage of a significant reduction in the resistance opposed by the valve to the passage of air, with, consequently, a notable reduction in the risk of formation of depression in the gas mask, as well as the advantage of an increase clear of the valve setting range.
  • the adjustable connection valve for the supply of respiratory air essentially consists of four co-axial elements, namely a first element, to which is connected a connection cap capable of receiving in a sealed manner at air, filter of a gas mask or other similar device; a second element, to which is connected to one of its axial ends, an air supply pipe and which, at its other axial end, is closed and which, between these two ends is provided with at least a second air passage opening; a third element having a third air passage opening, the third element being able to be displaced axially by contact with the filter or other device of the gas mask as a result of the connection of the latter with the valve and being suitable for therefore open the valve; and a fourth element comprising a spring tending to maintain the valve in its closed position or to bring it to this closed position;
  • this valve is characterized in that the first element is provided with at least a first air passage opening, in that between the first element and the second element is provided a fifth element, having at least a fifth opening air passage, capable of being
  • the adjustable connection valve 1, illustrated by the appended figures, essentially consists of five elements, of which the first element 2, on which the cap 3 is mounted in an airtight manner, consists of two concentric parts 4 and 5 , joined, at one of their ends, by a wall 6, provided with two diametrically opposite passage openings 7.
  • This element 2 is, in the present embodiment of the invention, extended by a fifth element 8, consisting essentially of a cylindrical part 9, the outside diameter of which is equal to that of element 2, and of part 10, concentric with this part 9 and sliding in part 5 of element 2.
  • These two parts 9 and 10 are mutually connected by a wall 11 provided with two diametrically opposite passage openings 12, each having a narrow part 13 and a wider part 14.
  • the two elements 2 and 8 can be angularly offset l 'relative to each other and are preferably provided with a latching system intended to lock them reciprocally in determined positions.
  • the wall 11 is, for example, provided with notches 15, with which a ball 16 cooperates urged by a spring 17.
  • the second element 18 of the connection valve 1 is in the form of a wall 19, capable of sliding in the above element 8 and mounted on a tubular part 20, to which can be fixed, on one side of the wall 19 , suitably, an air hose 21, while, on the other side of the wall 19, openings 22 are provided in the tubular part 20.
  • the end of the latter, located beyond the openings 22, is provided with an end wall 23, on which is fixed the wall 24 of the third element 25, which is suitably fixed, for example by gluing, to the second element 18 and is thus capable of moving with this element 18 relative to the first element 2, the aforesaid wall 24 being provided with openings 26.
  • the fourth element is provided, in the form of a spring 26.
  • the valve is closed in the position shown in FIG. 1.
  • the wall 19 of the element 18 applies to the wall 11 of the element 8 so as to close the openings 12, while the part of the element 18, provided with the openings 22, applies to the part 10 of the element 8, so as to also avoid the passage of air through these openings.
  • the third element 25 and, therefore, also the second element 18 becomes move relative to the second element 18 and to the fifth element 8, respectively, so as to release the openings 22 from the part 10 of the element 8 and to move the wall 19 of the element 18 away from the openings 12, all this so to allow the free passage of air, brought by the flexible 21, by the tubular part 20 and the openings 22, 12, 7 and 26 towards the filter 28.
  • the spring 27 thus compressed ensures, when the filter 28 is removed from the cap 3, the automatic reclosing of the valve 1.
  • the element 8 can be rotated relative to the element 2, so that the passage openings 7 more or less cover the openings of passage 12 of wall 11.
  • the free passage section can vary between a minimum value, determined by stops 30-31 (fig. 4 and 6), and a maximum value.
  • valves of the type to which the present invention relates are used to connect gas masks or other similar devices to a common air supply pipe, for example, in workshops giving off harmful products (gases or vapors) , in vehicles intended to cross infested areas, etc., all of this so that the persons concerned wearing a gas mask can at any time be connected to a cap 3 so as to increase the autonomy of the gas mask.

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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)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Compressor (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

The controllable valve is intended for connecting a breathing apparatus with a gas mask filter (18) to an air supply. A first member (2) has a cup to receive the filter and a second member (4) a tubular air inlet end (37) axially slidable in the tubular element (23) of the first part, with lateral openings (7) near its closed other end. A tubular third member (8) is axially slidable against a spring (15) by inserting the filter and fixed to the end (38) via a transverse apertured partition (39). This slide movement uncovers the valve openings (7). A further member (26) has tubular connecting portions (27,28) and a transverse partition (29) with openings for registering to vary the cross-sectional flow area. FL

Description

Une soupape de raccord réglable connue BE-A-895 415 pour l'amenée d'air respiratoire se compose essentiellement de quatre éléments, à savoir d'un premier élément, auquel est raccordé un capuchon, avec lequel peut coopérer, de manière étanche à l'air, le filtre d'un masque à gaz ou d'un autre dispositif analogue; d'un deuxième élément, auquel est raccordée une conduite d'amenée d'air et qui, à son extrémité libre, est fermé et est muni d'au moins un passage, ce deuxième élément étant susceptible d'être déplacé par rapport au premier élément; d'un troisième élément se prêtant par son déplacement à l'ouverture ou la fermeture de la soupape et présentant également une ouverture de passage d'air; et d'un quatrième élément comportant un ressort tendant à maintenir la soupape en sa position fermée ou à l'amener en cette position; une caractéristique spéciale de la soupape de raccord selon ce brevet antérieur consistant en ce que les ouvertures de passage d'air, qui doivent pouvoir coopérer mutuellement de manière réglable pour assurer l'amenée d'air au filtre raccordé du masque à gaz ou d'un autre dispositif analogue, s'étendent radialement dans des éléments tubulaires.A known adjustable connection valve BE-A-895 415 for the supply of respiratory air essentially consists of four elements, namely a first element, to which is connected a cap, with which can cooperate, in a sealed manner air, filter of a gas mask or other similar device; a second element, to which is connected an air supply pipe and which, at its free end, is closed and is provided with at least one passage, this second element being capable of being displaced relative to the first element; a third element which lends itself by its displacement to the opening or closing of the valve and also having an air passage opening; and a fourth element comprising a spring tending to maintain the valve in its closed position or to bring it to this position; a special feature of the connection valve according to this prior patent consisting in that the air passage openings, which must be able to cooperate in an adjustable manner to ensure the supply of air to the connected filter of the gas mask or another similar device extend radially in tubular elements.

Or, la présente invention a trait à des perfectionnements, de la soupape susmentionnée, consistant principalement en ce que les susdites ouvertures de passage d'air sont disposées axialement en divers éléments mutuellement coopérants de la soupape de raccord, ce qui présente, entre autres, l'avantage d'une réduction sensible de la résistance opposée par la soupape au passage d'air, avec, par conséquent, une réduction notable du risque de formation de dépression dans le masque à gaz, ainsi que l'avantage d'une augmentation nette du domaine réglage de la soupape.However, the present invention relates to improvements, of the aforementioned valve, consisting mainly in that the aforesaid air passage openings are arranged axially in various mutually cooperating elements of the connecting valve, which has, among other things, the advantage of a significant reduction in the resistance opposed by the valve to the passage of air, with, consequently, a notable reduction in the risk of formation of depression in the gas mask, as well as the advantage of an increase clear of the valve setting range.

La soupape de raccord réglable pour l'amenée d'air respiratoire, selon l'invention se compose essentiellement de quatre éléments co-axiaux, à savoir d'un premier élément, auquel est raccordé un capuchon de raccordement apte à recevoir de manière étanche à l'air, le filtre d'un masque à gaz ou d'un autre dispositif analogue; d'un deuxième élément, auquel est raccordée à une de ses extrémités axiales, une conduite d'amenée d'air et qui, à son autre extrémité axiale, est fermée et qui, entre ces deux extrémités est munie d'au moins une deuxième ouverture de passage d'air; d'un troisième élément présentant une troisième ouverture de passage d'air, le troisième élément étant apte à être déplacé axialement par contact avec le filtre ou autre dispositif du masque à gaz par suite du raccordement de ce dernier avec la soupape et étant apte par conséquent à ouvrir la soupape; et d'un quatrième élément comportant un ressort tendant à maintenir la soupape en sa position fermée ou à l'amener en cette position de fermeture; cette soupape est caractérisée en ce que le premier élément est muni d'au moins une première ouverture de passage d'air, en ce qu'entre le premier élément et le deuxième élément est prévu un cinquième élément, présentant au moins une cinquième ouverture de passage d'air, susceptible d'être déplacée par rapport à la première ouverture de passage d'air par rotation du cinquième élément autour de l'axe commun pour régler le débit d'air, en ce que le deuxième élément et le troisième élément forment ensemble un tout qui est susceptible d'être déplacé axialement par rapport aux premiers et cinquièmes éléments, et en ce que les premières, troisièmes et cinquièmes ouvertures de passage d'air sont parallèles à l'axe commun et disposées en alignement dans des parois radiales, de sorte que la direction du mouvement de l'air par la soupape est pratiquement totalement axiale.The adjustable connection valve for the supply of respiratory air according to the invention essentially consists of four co-axial elements, namely a first element, to which is connected a connection cap capable of receiving in a sealed manner at air, filter of a gas mask or other similar device; a second element, to which is connected to one of its axial ends, an air supply pipe and which, at its other axial end, is closed and which, between these two ends is provided with at least a second air passage opening; a third element having a third air passage opening, the third element being able to be displaced axially by contact with the filter or other device of the gas mask as a result of the connection of the latter with the valve and being suitable for therefore open the valve; and a fourth element comprising a spring tending to maintain the valve in its closed position or to bring it to this closed position; this valve is characterized in that the first element is provided with at least a first air passage opening, in that between the first element and the second element is provided a fifth element, having at least a fifth opening air passage, capable of being displaced relative to the first air passage opening by rotation of the fifth element around the common axis to adjust the air flow, in that the second element and the third element together form a whole which is capable of being displaced axially with respect to the first and fifth elements, and in that the first, third and fifth air passage openings are parallel to the common axis and arranged in alignment in walls radial, so that the direction of air movement through the valve is almost completely axial.

Les caractéristiques et avantages de l'invention ressortiront plus clairement de la description détaillée suivante d'un mode de mise en oeuvre préféré, donnée à titre d'exemple sans la moindre intention restrictive, avec référence aux dessins annexés, où

  • la figure 1 représente en coupe radiale une soupape de raccord réglable, dotée des perfectionnements selon l'invention, en sa position fermée;
  • la figure 2 représente une vue de la soupape de raccord concernée analogue à celle de la figure 1, dont elle diffère par le fait que le filtre du masque à gaz est raccordé à la soupape de raccord selon l'invention;
  • la figure 3 représente une coupe du dispositif selon la figure 2 pratiquée suivant un plan passant par la ligne III-III de cette dernière;
  • la figure 4 représente une vue analogue à celle de la figure 3 pour une deuxième position extrême de la soupape; et
  • les figures 5 et 6 représentent des coupes pratiquées respectivement selon la ligne V-V et la ligne VI-VI des figures 3 et 5.
The characteristics and advantages of the invention will emerge more clearly from the following detailed description of a preferred embodiment, given by way of example without any restrictive intention, with reference to the appended drawings, where
  • Figure 1 shows in radial section an adjustable connection valve, provided with improvements according to the invention, in its closed position;
  • FIG. 2 represents a view of the relevant connection valve similar to that of FIG. 1, from which it differs in that the gas mask filter is connected to the connection valve according to the invention;
  • 3 shows a section of the device according to Figure 2 made along a plane passing through the line III-III thereof;
  • Figure 4 shows a view similar to that of Figure 3 for a second extreme position of the valve; and
  • FIGS. 5 and 6 show sections made respectively along the line VV and the line VI-VI of FIGS. 3 and 5.

La soupape de raccord réglable 1, illustrée par les figures annexées, se compose essentiellement de cinq éléments, dont le premier élément 2, sur lequel le capuchon 3 est monté de manière étanche à l'air, se compose de deux parties concentriques 4 et 5, réunies, à l'une de leurs extrémités, par une paroi 6, munie de deux ouvertures de passage diamétralement opposées 7. Cet élément 2 est, dans le présent mode d'exécution de l'invention, prolongé par un cinquième élément 8, se composant essentiellement d'une partie cylindrique 9, dont le diamètre extérieur est égal à celui de l'élément 2, et d'une partie 10, concentrique avec cette partie 9 et coulissant dans la partie 5 de l'élément 2. Ces deux parties 9 et 10 sont mutuellement reliées par une paroi 11 munie de deux ouvertures de passage diamétralement opposées 12, présentant chacune une partie étroite 13 et une partie plus large 14. Les deux éléments 2 et 8 peuvent être décalés angulairement l'un par rapport à l'autre et sont, de préférence, munis d'un système à encliquetage destiné à les bloquer réciproquement en des positions déterminées. A cet effet, la paroi 11 est, par exemple, munis d'encoches 15, avec lesquelles coopère une bille 16 sollicitée par un ressort 17.The adjustable connection valve 1, illustrated by the appended figures, essentially consists of five elements, of which the first element 2, on which the cap 3 is mounted in an airtight manner, consists of two concentric parts 4 and 5 , joined, at one of their ends, by a wall 6, provided with two diametrically opposite passage openings 7. This element 2 is, in the present embodiment of the invention, extended by a fifth element 8, consisting essentially of a cylindrical part 9, the outside diameter of which is equal to that of element 2, and of part 10, concentric with this part 9 and sliding in part 5 of element 2. These two parts 9 and 10 are mutually connected by a wall 11 provided with two diametrically opposite passage openings 12, each having a narrow part 13 and a wider part 14. The two elements 2 and 8 can be angularly offset l 'relative to each other and are preferably provided with a latching system intended to lock them reciprocally in determined positions. For this purpose, the wall 11 is, for example, provided with notches 15, with which a ball 16 cooperates urged by a spring 17.

Le deuxième élément 18 de la soupape de raccord 1 se présente sous forme d'une paroi 19, susceptible de coulisser dans le susdit élément 8 et montée sur une partie tubulaire 20, à laquelle peut être fixé, d'un côté de la paroi 19, de manière appropriée, un flexible à air 21, tandis que, de l'autre côté de la paroi 19, sont prévues des ouvertures 22 dans la partie tubulaire 20.The second element 18 of the connection valve 1 is in the form of a wall 19, capable of sliding in the above element 8 and mounted on a tubular part 20, to which can be fixed, on one side of the wall 19 , suitably, an air hose 21, while, on the other side of the wall 19, openings 22 are provided in the tubular part 20.

L'extrémité de cette dernière, située au-delà des ouvertures 22, est munie d'une paroi terminale 23, sur laquelle est fixée la paroi 24 du troisième élément 25, qui est fixé de manière appropriée, par exemple par collage, au deuxième élément 18 et est ainsi susceptible de se déplacer avec cet élément 18 par rapport au premier élément 2, la susdite paroi 24 étant munie d'ouvertures 26.The end of the latter, located beyond the openings 22, is provided with an end wall 23, on which is fixed the wall 24 of the third element 25, which is suitably fixed, for example by gluing, to the second element 18 and is thus capable of moving with this element 18 relative to the first element 2, the aforesaid wall 24 being provided with openings 26.

Enfin, entre le premier élément 2 et le troisième élément 25, est prévu le quatrième élément se présentant sous forme d'un ressort 26. La soupape est fermée dans la position représentée par la figure 1. En effet, dans cette position, la paroi 19 de l'élément 18 s'applique à la paroi 11 de l'élément 8 de manière à fermer les ouvertures 12, tandis que la partie de l'élément 18, munie des ouvertures 22, s'applique à la partie 10 de l'élément 8, de manière à éviter également le passage d'air par ces ouvertures.Finally, between the first element 2 and the third element 25, the fourth element is provided, in the form of a spring 26. The valve is closed in the position shown in FIG. 1. In fact, in this position, the wall 19 of the element 18 applies to the wall 11 of the element 8 so as to close the openings 12, while the part of the element 18, provided with the openings 22, applies to the part 10 of the element 8, so as to also avoid the passage of air through these openings.

En cas d'introduction du filtre 28 d'un masque à gaz, ou d'un autre dispositif analogue 29, dans le capuchon, comme le montre la figure 2, le troisième élément 25 et, par conséquent, également le deuxième élément 18 se déplacent par rapport au deuxième élément 18 et au cinquième élément 8, respectivement, de manière à dégager les ouvertures 22 de la partie 10 de l'élément 8 et à éloigner la paroi 19 de l'élément 18 des ouvertures 12, tout cela de manière à permettre le passage libre de l'air, amené par le flexible 21, par la partie tubulaire 20 et les ouvertures 22, 12, 7 et 26 vers le filtre 28.If the filter 28 of a gas mask or other similar device 29 is inserted into the cap, as shown in FIG. 2, the third element 25 and, therefore, also the second element 18 becomes move relative to the second element 18 and to the fifth element 8, respectively, so as to release the openings 22 from the part 10 of the element 8 and to move the wall 19 of the element 18 away from the openings 12, all this so to allow the free passage of air, brought by the flexible 21, by the tubular part 20 and the openings 22, 12, 7 and 26 towards the filter 28.

Le ressort 27 ainsi comprimé assure, lorsque le filtre 28 est retiré du capuchon 3, la refermeture automatique de la soupape 1.The spring 27 thus compressed ensures, when the filter 28 is removed from the cap 3, the automatic reclosing of the valve 1.

En vue de réglage du débit d'air passant par le filtre 28 du masque à gaz 29, l'élément 8 peut être tourné par rapport à l'élément 2, de manière que les ouvertures de passage 7 recouvrent plus ou moins les ouvertures de passage 12 de la paroi 11.In order to adjust the air flow rate passing through the filter 28 of the gas mask 29, the element 8 can be rotated relative to the element 2, so that the passage openings 7 more or less cover the openings of passage 12 of wall 11.

Par un choix judicieux de la forme des ouvertures 12 s'obtient que la section de passage libre peut varier entre une valeur minimale, déterminée par des arrêts 30-31 (fig. 4 et 6), et une valeur maximale.By a judicious choice of the shape of the openings 12 it is obtained that the free passage section can vary between a minimum value, determined by stops 30-31 (fig. 4 and 6), and a maximum value.

Les soupapes du genre auquel a trait la présente invention servent à raccorder des masques à gaz ou d'autres dispositifs analogues à une conduite d'amenée d'air commune, par exemple, en des ateliers à dégagement de produits (gaz ou vapeurs) nocifs, en des véhicules destinés à traverser des zones infestées, etc., tout cela de manière que les personnes concernées portant un masque à gaz, peuvent à tout moment se raccorder à un capuchon 3 de manière à augmenter l'autonomie du masque à gaz.The valves of the type to which the present invention relates are used to connect gas masks or other similar devices to a common air supply pipe, for example, in workshops giving off harmful products (gases or vapors) , in vehicles intended to cross infested areas, etc., all of this so that the persons concerned wearing a gas mask can at any time be connected to a cap 3 so as to increase the autonomy of the gas mask.

Il va de soi que la présente invention ne se limite pas à l'exemple de mise en oeuvre décrit dans les lignes précédentes et illustré par les dessins annexés, mais se prête à de nombreux autres modes d'exécution concernant la forme et les dimensions de la soupape, évidemment soumis à la condition que ne soit pas dépassé le - cadre de l'invention défini par les revendications formulées ci-après.It goes without saying that the present invention is not limited to the example of implementation described in the preceding lines and illustrated by the appended drawings, but lends itself to many other embodiments concerning the shape and the dimensions of the valve, obviously subject to the condition that the framework of the invention is not exceeded, defined by the claims formulated below.

Claims (11)

1. Adjustable connecting valve for supplying respiratory air of the type essentially consisting of four coaxial elements, namely of a first element (2), to which a connecting cap (3) suitable for receiving the filter (28) of a gas mask or another analogous device (29), is connected in an hermetic manner; of a second element (18), to which an air supply pipe (21) is connected to one of its axial extremities, and which is closed at its other axial extremity (23), and which is provided with at least a second air passage opening (22) between its two extremities; of a third element (25) showing a third air passage opening (26), the third element being suitable to be displaced axially by contact with the filter or other gas mask device through the connection of the latter with the valve and consequently being suitable to open the valve; of a fourth element (27) comprising a spring tending to maintain the valve (1) in its closed position or to bring it to this closed position; characterised in that the first element is provided with at least a first air passage opening (7), in that between the first element (2) and the second element (18) a fifth element (8) is provided, showing at least a fifth air passage opening (12), capable of being displaced in relation to the first air passage opening (7) by rotation of the fifth element around the common axis to adjust the air flow, in that the second element (18) and the third element (25) together form a whole which is capable of being displaced axially in relation to the first and fifth elements (2, 8), and in that the first, third and fifth air passage openings (7, 26, 12) are parallel to the common axis and arranged in alignment in radial walls, in such a manner that the direction of air movement through the valve is practically totally axial.
2. Adjustable connecting valve according to claim 1, characterised in that the fifth element (8), in the closed position of the valve, closes the passage openings (22) of the second element (18).
3. Adjustable connecting valve according to claim 1 or 2, characterised in that the fifth element (8) comprises a part (9) locally surrounding the second element (18).
4. Adjustable connecting valve according to one of the preceding claims 1-3, characterised in that the first element (2) comprises a cylindrical part (4), on which the cap (3) is attached in an hermetic manner and which, on its extremity away from the cap (3), is provided with a wall (6) traversed by the central part (20) of the second element (18) and provided with at least one passage (7).
5. Adjustable connecting valve according to one of the preceding claims 1-4, characterised in that the fifth element (8) comprises a cylindrical part (9), aligned on the part (4) of the element (2), cylindrical part (9) of which one of the extremities is provided with a terminal wall (11) applied to the wall (6) of the element (2) and traversed by the central part (20) of the second element (4), and in that this wall shows at least one opening (12) which, by rotation of the fifth element (8), can be displaced in relation to the opening (7) of the wall (6).
6. Adjustable connecting valve according to claim 5, characterised in that between the walls (6) and (11) a pawl and ratchet system is provided, allowing the reciprocal locking of the elements (2) and (8) in several different positions.
7. Adjustable connecting valve according to claim 4, or 5, characterised in that at least one of the adjacent walls (6) and (11) of the elements (2) and (8) shows a cylindrical collar (5-10) serving to close the openings (22) of the element.
8. Adjustable connecting valve according to one of the preceding claims 1-7, characterised in that the fourth element (27), constituted by a spring, is arranged between the elements (2) and (8), on the one hand, and the third element (25), on the other hand.
9. Adjustable connecting valve according to one of the preceding claims 1-8, characterised in that on the wall (11) at least one stop (30) is provided, situated in the passage (7) of the wall and serving to limit the reciprocal displacement of the walls (6) and (11).
10. Adjustable connecting valve according to one of the preceding claims 1-9, characterised in that the second element (18) is provided with a wall (19), which, when the valve is in its closed position, presses against the wall (11) of the fifth element (8), and in that this wall (19) is located on a tubular element (20) closed at one of its extremities, serving, on the one hand, to connect an air hose (21) and showing, on the other hand, one or more passage opening (22) between the wall (19) and the terminal wall (23).
11. Adjustable connecting valve according to one of the preceding claims 1-10, characterised in that to the terminal wall (23) of the second element (18) the third element (25) is attached, which essentially consists of a cylindrical part axially sliding into the first element (2), capable of being axially displaced by the gas mask filter or by another analogous device and provided, at one of its extremities, with a wall (24), which serves to attach it on the second element (18) and shows at least one passage opening (26).
EP84201661A 1983-11-21 1984-11-19 Adjustable hose connection valve for breathing-air supply Expired - Lifetime EP0146161B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84201661T ATE49895T1 (en) 1983-11-21 1984-11-19 ADJUSTABLE HOSE CONNECTION VALVE FOR BREATHING AIR SUPPLY.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2060262 1983-11-21
BE2/60262A BE898263R (en) 1983-11-21 1983-11-21 Breathing apparatus with filter and air connection - has valve opened by inserting filter and member rotatable to vary area of axial flow

Publications (3)

Publication Number Publication Date
EP0146161A2 EP0146161A2 (en) 1985-06-26
EP0146161A3 EP0146161A3 (en) 1986-02-12
EP0146161B1 true EP0146161B1 (en) 1990-01-31

Family

ID=3865662

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84201661A Expired - Lifetime EP0146161B1 (en) 1983-11-21 1984-11-19 Adjustable hose connection valve for breathing-air supply

Country Status (3)

Country Link
EP (1) EP0146161B1 (en)
AT (1) ATE49895T1 (en)
DE (1) DE3481173D1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE58906330D1 (en) * 1988-03-09 1994-01-20 Blaschke Pumpen Filteranlagen Device for ventilation of protective suits.
GB8817144D0 (en) * 1988-07-19 1988-08-24 Protector Safety Ltd Respirator filters
USH1361H (en) * 1992-05-06 1994-10-04 The United States Of America As Represented By The Secretary Of The Army Softshell protective mask
US6241653B1 (en) * 1999-07-16 2001-06-05 Isovac Products Llc Isolation apparatus
CN113521583A (en) * 2021-08-27 2021-10-22 姜玫 Fire control filters formula respirator of saving oneself

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB231061A (en) * 1924-07-17 1925-03-26 Curtis Mordaunt Shipley Improvements in coupling valve
AT321048B (en) * 1972-05-09 1975-03-10 Paula Duda One-way flow control valve
FR2511252A1 (en) * 1982-04-02 1983-02-18 Fenzy Sa TIP FOR RESPIRATORY APPARATUS FOR CONNECTING THE MASK TO A BOTTLE OF RESPIRATORY GAS
BE895415A (en) * 1982-12-21 1983-04-15 Vandeputte Gilbert Breathing mask air filter valve - couplable to air line then opening valve to increase filter life when mask user stationary

Also Published As

Publication number Publication date
EP0146161A3 (en) 1986-02-12
DE3481173D1 (en) 1990-03-08
EP0146161A2 (en) 1985-06-26
ATE49895T1 (en) 1990-02-15

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