DE354929C - Lip valve made from a rubber hose for gas masks - Google Patents

Lip valve made from a rubber hose for gas masks

Info

Publication number
DE354929C
DE354929C DEG44203D DEG0044203D DE354929C DE 354929 C DE354929 C DE 354929C DE G44203 D DEG44203 D DE G44203D DE G0044203 D DEG0044203 D DE G0044203D DE 354929 C DE354929 C DE 354929C
Authority
DE
Germany
Prior art keywords
rubber hose
valve made
lip valve
gas masks
lip
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
DEG44203D
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.)
INGEBORG KUHN
KAETHE KATHARINA KUHN GEB BRET
Original Assignee
INGEBORG KUHN
KAETHE KATHARINA KUHN GEB BRET
Publication date
Priority to DEG44203D priority Critical patent/DE354929C/en
Application granted granted Critical
Publication of DE354929C publication Critical patent/DE354929C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • F16K15/147—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery the closure elements having specially formed slits or being of an elongated easily collapsible form

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)

Description

854929854929

Lippenventile aus einem Gummischlauch sind nicht sicher gasdicht, weil nach mehrfachem Gebrauch die in einer Geraden aneinanderliegenden Lippen die Neigung haben, auseinanderzuklaffen. Wird dann nicht mit starkem Luftstrom eingesogen, so daß die Lippen fest aneinanderliegen, so kommt bei leichtem Einatmen stets etwas Gas durch die Lippenventile.Lip valves made from a rubber hose are not reliably gas-tight, because after several times Use the lips that lie next to each other in a straight line, to gape apart. Is then not sucked in with a strong air flow, so that the Lips lie tightly together so that when you breathe in lightly, some gas always comes through them Lip valves.

ίο Die Erfindung betrifft ein gasdichtes Lippenventil aus einem Gummischlauch für Gasmasken und kennzeichnet sich durch rechtwinklig g'egen die Ansatzöffnung verdrehte, kreisförmig gebogene Lippen, deren Krümmungsachse mit der Schlauchachse gleichläuft. Hierdurch wird erreicht, daß auch ohne Einsaugungsluftstrom und ohne äußeren Überdruck die Lippen selbsttätig aneinanderiiegen und nicht klaffen.The invention relates to a gas-tight lip valve made of a rubber hose for gas masks and is characterized by being twisted at right angles to the attachment opening, circularly curved lips whose axis of curvature is the same as the axis of the hose. This ensures that the lips automatically lie against one another even without an intake air flow and without external overpressure and not gape.

Beim Herstellen der Lippenventile aus einem Gummischlauch werden die Lippen beim Vulkanisieren durch ein besonderes Verfahren in rechtwinklig gegen die Ansatzöffnung verdrehter, kreisförmig gebogener Stellung festgelegt oder sie werden nachträglich durch einen, durch beide Enden gezogenen Faden in der verdrehten kreisförmigen Lage so festgehalten, daß sich die im Innern des Kreises gelegeneLippe verkürzt und fest gegen die äußere, etwas stärker gekrümmte Lippe anlegt. Infolge der natürlichen Dehnbarkeit solcher Lippen streben beide Lippen selbsttätig in die alte Lage nach der Ansatzöffnung zurück und gewähren so eine vollkommen gasdichte Schlußfafaigkeit auch unabhängig vom Einatmungsluftstrom.When making the lip valve from a rubber hose, the lips when vulcanizing by a special process at right angles to the attachment opening twisted, circularly bent position set or they are retrospectively by a thread drawn through both ends in the twisted circular position held in such a way that the lip lying inside the circle shortens and tightens against it the outer, slightly more curved lip. Due to the natural elasticity of such lips, both lips automatically strive into the old position after the attachment opening back and thus grant a completely gas-tight closure regardless of the Inhalation airflow.

In der Zeichnung ist das Lippenventil mit a bezeichnet, b und c sind die innere und äußere kreisförmig gebogene Lippe, d ist die Ansatzöffnung für das Ausstoßrohr.In the drawing, the lip valve is designated by A, B and C are the inner and outer circularly curved lip, d is the neck opening for the discharge pipe.

Claims (1)

Patent-Anspruch;Patent claim; Lippenventil aus einem Gummischlauch für Gasmasken, gekennzeichnet durch rechtwinklig gegen die Ansatzöffnung (d) für das Ausstoßrohr verdrehte, kreisförmig gebogene Lippen (&, c), deren Krümmungsachse mit der Schlauchachse gleichläuft.Lip valve made from a rubber hose for gas masks, characterized by circularly curved lips (&, c) which are twisted at right angles against the attachment opening (d) for the discharge tube and whose axis of curvature is the same as the axis of the hose. Hierzu ι Blatt Zeichnungen.For this purpose ι sheet of drawings.
DEG44203D Lip valve made from a rubber hose for gas masks Expired DE354929C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG44203D DE354929C (en) Lip valve made from a rubber hose for gas masks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG44203D DE354929C (en) Lip valve made from a rubber hose for gas masks

Publications (1)

Publication Number Publication Date
DE354929C true DE354929C (en) 1922-06-16

Family

ID=7127386

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG44203D Expired DE354929C (en) Lip valve made from a rubber hose for gas masks

Country Status (1)

Country Link
DE (1) DE354929C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999035425A1 (en) * 1998-01-05 1999-07-15 Unilever Plc Duckbill valve with crescent shaped lips
USD917027S1 (en) 2019-12-18 2021-04-20 Lasalle Bristol Corporation Non-return device valve support member
USD924378S1 (en) 2019-12-18 2021-07-06 Lasalle Bristol Corporation Non-return device valve member

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999035425A1 (en) * 1998-01-05 1999-07-15 Unilever Plc Duckbill valve with crescent shaped lips
AU730751B2 (en) * 1998-01-05 2001-03-15 Unilever Plc Duckbill valve with crescent shaped lips
USD917027S1 (en) 2019-12-18 2021-04-20 Lasalle Bristol Corporation Non-return device valve support member
USD924378S1 (en) 2019-12-18 2021-07-06 Lasalle Bristol Corporation Non-return device valve member

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