DE301718C - - Google Patents

Info

Publication number
DE301718C
DE301718C DENDAT301718D DE301718DA DE301718C DE 301718 C DE301718 C DE 301718C DE NDAT301718 D DENDAT301718 D DE NDAT301718D DE 301718D A DE301718D A DE 301718DA DE 301718 C DE301718 C DE 301718C
Authority
DE
Germany
Prior art keywords
lips
flat
valve
lip
bent
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.)
Active
Application number
DENDAT301718D
Other languages
German (de)
Publication of DE301718C publication Critical patent/DE301718C/de
Active legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/14Check valves with flexible valve members
    • F16K15/144Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • F16K15/147Check 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

Description

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

Claims (1)

für Atmungsgeräte.for breathing apparatus. Den Gegenstand der Erfindung bildet ein für Atmungsgeräte bestimmtes Lippenventil, dessen freies Ende hakenartig umgebogen ist. Solche Lippenventile werden gewöhnlich aus einem zylindrischen Schlauchstück hergestellt, dessen eines Ende flach gedrückt oder geformt ist, so daß die Schlauchwandung mit ihrer Innenfläche flach auf- oder gegeneinander liegt und dadurch flache Lippen bildet. Diese Lippen liegen dabei ohne Spannung aufeinander, so daß sie im allgemeinen nur für ganz geringe Luftbewegung in der einen oder der anderen Richtung dicht sind.The subject of the invention is a lip valve intended for breathing apparatus, whose free end is bent like a hook. Such lip valves are becoming common made of a cylindrical piece of tubing, one end of which is pressed flat or is shaped so that the inner surface of the hose wall is flat on top of or against one another and thereby forms flat lips. These lips lie on one another without tension, so that they generally only are tight for very little air movement in one direction or the other. Um eine bessere Dichtung zu erzielen, hat man bereits vorgeschlagen, die flachliegenden Lippen schalenförmig um die Längsachse des Ventils zu krümmen. Bei solcher Anordnung kann aber leicht Schmutz o. dgl. zwischen die Lippen eindringen; alsdann entsteht beim Durchgehen der Luft oft ein unangenehmes Geräusch.In order to achieve a better seal, it has already been proposed to lay flat To curve lips around the longitudinal axis of the valve in the shape of a bowl. With such an arrangement but dirt or the like can easily penetrate between the lips; then arises with Often an unpleasant noise passing through the air. Dieser Nachteil soll durch das Lippenventil gemäß vorliegender Erfindung vermieden werden, indem die flachliegenden Lippen senkrecht zur Ventillängsachse gekrümmt, d. h. gegen sich selbst zurück- oder umgebogen sind. Durch solche Umbiegung vermindert sich auch die Höhe des Ventils.This disadvantage is to be avoided by the lip valve according to the present invention by bending the flat lips perpendicular to the longitudinal axis of the valve, d. H. are bent back or bent over against themselves. Reduced by such bending also the height of the valve. Auf der Zeichnung ist ein Ausführungsbeispiel des neuen Lippenventils dargestellt, und zwar zeigt Abb. 1 eine äußere Ansicht gegen das umgebogene Lippenende und Abb. 2 einen Schnitt nach der Linie A-B der Abb. 1.In the drawing, an embodiment of the new lip valve is shown, namely Fig. 1 shows an external view towards the bent lip end and Fig. 2 shows a section along the line AB in Fig. 1. Das Schlauchstück α ist an dem einen Ende flach geformt, so daß seine Wandungen flach gegeneinanderliegende Lippen b und c bilden. Das freie Ende dieser Lippen ist gegen sich selbst umgebogen, so daß eine hakenförmige Umbiegung oder Krümmung entsteht.The hose piece α is flat at one end so that its walls form lips b and c lying flat against one another. The free end of these lips is bent over against itself, so that a hook-shaped bend or curvature is created. Paten τ-An s PRU c η :Paten τ-An s PRU c η: Lippenventil aus einem an dem einen Ende 'flach geformten Schlauchstück für Atmungsgeräte, dadurch gekennzeichnet, daß die Lippen (b, c) an ihrem freien Ende hakenartig umgebogen sind.Lip valve made of a tube piece for breathing apparatus which is flat at one end, characterized in that the lips (b, c) are bent over like a hook at their free end.
DENDAT301718D Active DE301718C (en)

Publications (1)

Publication Number Publication Date
DE301718C true DE301718C (en)

Family

ID=555571

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT301718D Active DE301718C (en)

Country Status (1)

Country Link
DE (1) DE301718C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240434A (en) * 1978-10-10 1980-12-23 Newkirk John B Peritoneo-venous shunt
US5193585A (en) * 1991-10-28 1993-03-16 Marathon Oil Company Duckbill conservation vent valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240434A (en) * 1978-10-10 1980-12-23 Newkirk John B Peritoneo-venous shunt
US5193585A (en) * 1991-10-28 1993-03-16 Marathon Oil Company Duckbill conservation vent valve

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