BE427702A - - Google Patents

Info

Publication number
BE427702A
BE427702A BE427702DA BE427702A BE 427702 A BE427702 A BE 427702A BE 427702D A BE427702D A BE 427702DA BE 427702 A BE427702 A BE 427702A
Authority
BE
Belgium
Prior art keywords
emi
valve
valves
fluids
subject
Prior art date
Application number
Other languages
French (fr)
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
Publication of BE427702A publication Critical patent/BE427702A/fr
Application filed filed Critical

Links

Classifications

    • 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
    • A62B9/04—Couplings; Supporting frames

Description

  

  PERFECTIONNEMENTS AUX MASQUES DE PROTECTION CONTRE

LES GAZ ET AUTRES PRODUITS NOCIFS

  
 <EMI ID=1.1> 

  
brevet déposée le 23 février 1938.

  
 <EMI ID=2.1>  

  
Au lieu de réaliser séparément les soupapes d'inspiration et d'expiration, il est possible de lea rendre solidaires l'une de l'autre et ainsi de les faire

  
 <EMI ID=3.1> 

  
Comme le montre le dessin ci-annexé, nullement

  
 <EMI ID=4.1> 

  
soupapes comprend une rondelle circulaire À en caoutchouc ou-toute autre substance flexible et résistante, dont

  
la partie centrale est découpée, en B C D, suivant la plus grande partie (9/10 environ) d'une circonférence concentrique.

  
La rondelle circulaire porte, d'autre part, un oylindre, de même matière,E, perpendiculaire, s'y rattachant suivant une circonférence conoentrique de diamètre supérieur à celui de la partie partiellement

  
 <EMI ID=5.1>  La figure 3-montre comment se plaoe et fonotionne cette pièce dans laquelle sont réunies les soupapes d'inspiration et d'expiration.

  
La partie cylindrique E entoure en le pressant le cylindre 5.

  
Comme on le voit, son diamètre intérieur est

  
 <EMI ID=6.1> 

  
fonctionnant comme soupape d'expiration,, vient s'applique:

  
 <EMI ID=7.1> 

  
 <EMI ID=8.1> 

  
se mouvant autour du petit aro d'attacha B D qui agit comme charnière,



  IMPROVEMENTS TO PROTECTIVE MASKS AGAINST

GAS AND OTHER HARMFUL PRODUCTS

  
 <EMI ID = 1.1>

  
patent filed February 23, 1938.

  
 <EMI ID = 2.1>

  
Instead of making the inspiration and expiration valves separately, it is possible to make them integral with each other and thus make them

  
 <EMI ID = 3.1>

  
As shown in the attached drawing, by no means

  
 <EMI ID = 4.1>

  
valves comprises a circular washer A made of rubber or any other flexible and resistant substance, of which

  
the central part is cut, in B C D, along the greater part (about 9/10) of a concentric circumference.

  
The circular washer carries, on the other hand, an oylindre, of the same material, E, perpendicular, attached thereto along a conoentric circumference of diameter greater than that of the partially

  
 <EMI ID = 5.1> Figure 3-shows how this room is placed and functions in which the inspiration and expiration valves are assembled.

  
The cylindrical part E surrounds the cylinder 5 by pressing it.

  
As can be seen, its inner diameter is

  
 <EMI ID = 6.1>

  
functioning as an exhalation valve, comes applies:

  
 <EMI ID = 7.1>

  
 <EMI ID = 8.1>

  
moving around the small aro of attach B D which acts as a hinge,

Claims (1)

Il va de soi que l'emploi de cet ensemble solidaire de soupapes n'est pas seulement revendiqué dans It goes without saying that the use of this integral set of valves is not only claimed in le dispositif faisant l'objet du brevet principal, mais également dans tout masque ou appareil ou l'entrée et l'évacuation de fluides quelconques sont mises en jeu suivant un dispositif analogue. the device forming the subject of the main patent, but also in any mask or apparatus where the entry and discharge of any fluids are involved according to a similar device. Il est entendu également que l'invention couvre toutes modifications que l'homme de métier serait tout <EMI ID=9.1> It is also understood that the invention covers all modifications that a person skilled in the art would be any <EMI ID = 9.1> C'est ainsi, par exemple, que suivant certains cas d'application, on peut envisager la suppression de la partie cylindrique E ou réaliser une soupape centrale non concentrique. Thus, for example, depending on certain application cases, it is possible to envisage the elimination of the cylindrical part E or to produce a non-concentric central valve. Il est aussi spécifié que la forme extérieure It is also specified that the outer form des soupapes est adaptée à celle des ouvertures qu'il of the valves is adapted to that of the openings which it s'agit d'obturer et, qu'au lieu d'être circulaire, elle is to close and, instead of being circular, it peut être elliptique ou autre. can be elliptical or other. REVENDICATIONS L'invention concerne: The invention relates to: Un perfectionnement au dispositif faisant l'objet d'une demande de brevet déposée le 23 février 1938, caractérisé An improvement to the device which is the subject of a patent application filed on February 23, 1938, characterized par les points suivants pris isolément ou dans leur by the following points taken in isolation or in their ensemble : <EMI ID=10.1> set: <EMI ID = 10.1> dans une seule pièce, constituée par une rondelle en in a single piece, consisting of a washer <EMI ID=11.1> <EMI ID = 11.1> rôle de soupape expiratoire et dont la partie centrale, role of expiratory valve and whose central part, <EMI ID=12.1> <EMI ID=13.1> <EMI ID = 12.1> <EMI ID = 13.1> ou toute autre courbe ou polygone entourant la soupape inspiratoire, un cylindre perpendiculaire en secs matière assurant sa fiction; or any other curve or polygon surrounding the inspiratory valve, a perpendicular cylinder in dry material ensuring its fiction; o) Ce dispositif combiné de soupapes est fait en caoutchouc ou matière analogue, d'une seule pièce" de toutes façons appropriées. o) This combination valve device is made of rubber or the like, integrally "in any suitable manner. II. L'emploi de cet ensemble solidaire de soupapes expiratoire et inspiratoire dans tout dispositif approprié d'entrée et d'évacuation de fluides quelconques. II. The use of this integral set of expiratory and inspiratory valves in any suitable device for the inlet and outlet of any fluids.
BE427702D 1938-02-23 1939-04-21 BE427702A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE426573T 1938-02-23
BE427702T 1938-04-21

Publications (1)

Publication Number Publication Date
BE427702A true BE427702A (en) 1938-05-31

Family

ID=88223

Family Applications (1)

Application Number Title Priority Date Filing Date
BE427702D BE427702A (en) 1938-02-23 1939-04-21

Country Status (1)

Country Link
BE (1) BE427702A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0194145A1 (en) * 1985-03-06 1986-09-10 Siebe Gorman & Company Limited Improvements in and relating to breathing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0194145A1 (en) * 1985-03-06 1986-09-10 Siebe Gorman & Company Limited Improvements in and relating to breathing apparatus

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