DE695492C - Exhalation valve for gas masks - Google Patents

Exhalation valve for gas masks

Info

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
Application number
DE1935D0069532
Other languages
German (de)
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.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
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 Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Priority to DE1935D0069532 priority Critical patent/DE695492C/en
Application granted granted Critical
Publication of DE695492C publication Critical patent/DE695492C/en
Expired legal-status Critical Current

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)

PATENTANSPRUCH: Mit Schutzkappe versehenes Ausatemventil für Gasschutzmasken, dadurch ge- kennzeichnet, daß um den als Luftauslaßdienenden Ringspalt (ä) zwischen .dem Rand (d) der Schutzkappe (f) und dem Gehäuse (b) des Ausatemventils ein aus einer zylindrischen Schraubenfeder gebildeteer geschlossener Ring (e) gespannt ist; dessen Windungen einen so geringen Abstand haben, daß der Ring (e) als Schutzsieb, wirkt. PATENT CLAIM: provided with protective cap exhalation valve for gas masks, characterized denotes Ge, that around the as Luftauslaßdienenden annular gap (A) between .the edge (d) of the protective cap (f) and the housing (b) of the exhalation valve, a gebildeteer of a cylindrical helical spring closed Ring (s) is tensioned; whose turns are so small that the ring (e) acts as a protective screen.
DE1935D0069532 1935-01-16 1935-01-16 Exhalation valve for gas masks Expired DE695492C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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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