DE695492C - Exhalation valve for gas masks - Google Patents
Exhalation valve for gas masksInfo
- Publication number
- DE695492C DE695492C DE1935D0069532 DED0069532D DE695492C DE 695492 C DE695492 C DE 695492C DE 1935D0069532 DE1935D0069532 DE 1935D0069532 DE D0069532 D DED0069532 D DE D0069532D DE 695492 C DE695492 C DE 695492C
- Authority
- DE
- Germany
- Prior art keywords
- exhalation valve
- gas masks
- protective cap
- ring
- valve
- 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
Links
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
- A62B18/10—Valves
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Description
AusatemventiI für Gasschutzmasken Die Erfindung betrifft ein mit einer Schutzkappe versehenes Ausatemventil für Gasschutzmasken wund besteht darin, daß um den als Luftauslaß dienenden Ringspalt zwischen dem Rand der Schutzkappe und dem Gehäuse des Ausatemventils ein aus einer zylindrischen Schraubcnfeder gebildeter geschlossener Ring gespannt ist, dessen Windungen einen so geringen Abstand haben, daß der Ring als Schutzsieb wirkt.Exhalation valve for gas protective masks The invention relates to a with a Exhalation valve with protective cap for gas masks wound is that around the annular gap between the edge of the protective cap and serving as an air outlet the housing of the exhalation valve is formed from a cylindrical helical spring closed ring is stretched, the turns of which have such a small distance, that the ring acts as a protective screen.
Durch die Anordnung eines solchen als Schutzsieb: wirkenden Ringes wird das Mirdringen von Schmutz und Fremdkörpern, die sich zwischen Ventilteller und Ventilsitz setzen und zum Undichtwerden des ,Ventils führen können, sicher und ohne Erhöhung des Durchgangswiderstandes vermieden. Die Schraubenfeder ist :einfach und billig herzustellen, ragt nur wenig über den Rand der Schutzkappe hinaus und ist leicht auswechselbar und ebenso leicht wieder zu befestigen.By arranging such a ring that acts as a protective screen is the penetration of dirt and foreign bodies that are between the valve disc and valve seat and can lead to leakage of the valve, safely and avoided without increasing the volume resistance. The coil spring is: simple and cheap to manufacture, protrudes only a little over the edge of the protective cap and is easily exchangeable and just as easy to attach again.
In der Zeichnung ist ein Ausführungsbei-'spiel des neuen Ausätemventils im Längsschnitt dargestellt.In the drawing is an exemplary embodiment of the new exhalation valve shown in longitudinal section.
Das in dem Maskeinstoff a befestigte Ausabemventil ist vorn einer Schutzkappe l über-:deckt, die derart ,am Gehäuse b des Ausatemventils angebracht ist, daß sich zwisthen dem Gehäuseb und dem Randd der Schutzkappe i ein als Luftauslaß dienender Ringspalt g befindet. Umthesen Ringspalt ist ein aus einer zylindrischen Schraubenfeder gebildeter geschlossener Ringre unter Spannung herumgelegt. Die Windungen dieses Ringes e haben ,einen so geringen Abstand, daß der Ring als Schutzsieb gegen das Endringen von Schmutzteilchen in das Ausatemventil wirkt.The discharge valve fixed in the mask fabric a is at the front one Protective cap l covers: covers which are attached in such a way to the housing b of the exhalation valve is that between the housing b and the edge d of the protective cap i an air outlet serving annular gap g is located. Umthesen annular gap is one of a cylindrical Coil spring formed closed ring around under tension. The turns this ring e have such a small distance that the ring acts as a protective screen against the penetration of dirt particles into the exhalation valve acts.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1935D0069532 DE695492C (en) | 1935-01-16 | 1935-01-16 | Exhalation valve for gas masks |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1935D0069532 DE695492C (en) | 1935-01-16 | 1935-01-16 | Exhalation valve for gas masks |
Publications (1)
Publication Number | Publication Date |
---|---|
DE695492C true DE695492C (en) | 1940-08-26 |
Family
ID=7060318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1935D0069532 Expired DE695492C (en) | 1935-01-16 | 1935-01-16 | Exhalation valve for gas masks |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE695492C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2569176A (en) * | 1946-03-08 | 1951-09-25 | Katcher Morris | Check valve |
DE4432374A1 (en) * | 1994-09-12 | 1996-03-14 | Oliver Woell | Breathing mask, esp. military respirator |
WO2003047698A1 (en) * | 2001-11-27 | 2003-06-12 | Msa Auer Gmbh | Respiratory protection mask for a compressed air breathing apparatus |
-
1935
- 1935-01-16 DE DE1935D0069532 patent/DE695492C/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2569176A (en) * | 1946-03-08 | 1951-09-25 | Katcher Morris | Check valve |
DE4432374A1 (en) * | 1994-09-12 | 1996-03-14 | Oliver Woell | Breathing mask, esp. military respirator |
WO2003047698A1 (en) * | 2001-11-27 | 2003-06-12 | Msa Auer Gmbh | Respiratory protection mask for a compressed air breathing apparatus |
US7673630B2 (en) | 2001-11-27 | 2010-03-09 | Msa Auer Gmbh | Respiratory protection mask for a compressed air breathing apparatus |
US8245712B2 (en) | 2001-11-27 | 2012-08-21 | Msa Auer Gmbh | Respirator mask for a compressed air breathing apparatus |
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