DE1055969B - Exhalation valve for breathing masks - Google Patents

Exhalation valve for breathing masks

Info

Publication number
DE1055969B
DE1055969B DED22030A DED0022030A DE1055969B DE 1055969 B DE1055969 B DE 1055969B DE D22030 A DED22030 A DE D22030A DE D0022030 A DED0022030 A DE D0022030A DE 1055969 B DE1055969 B DE 1055969B
Authority
DE
Germany
Prior art keywords
valve
exhalation valve
outer edge
breathing masks
disc
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.)
Pending
Application number
DED22030A
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
Priority claimed from DED18628A external-priority patent/DE1027518B/en
Application filed by Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Priority to DED22030A priority Critical patent/DE1055969B/en
Publication of DE1055969B publication Critical patent/DE1055969B/en
Pending 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

BUNDESREPUBLIK DEUTSCHLANDFEDERAL REPUBLIC OF GERMANY

DEUTSCHESGERMAN

KL.61a 29/13KL.61a 29/13

ΙΝΤΕΚΝΑΤ. KL. A 62 bΙΝΤΕΚΝΑΤ. KL. A 62 b

PATENTAMTPATENT OFFICE

AUSLEGE SCHRIFT 1055 969INTERPRETATION PAPER 1055 969

D 22030V/61aD 22030V / 61a

ANMELDETAG: 31. DEZEMBER 1955REGISTRATION DATE: DECEMBER 31, 1955

BEKANNTMACHUNG DER ANMELDUNG UND AUSGABE DERNOTICE THE REGISTRATION AND ISSUE OF THE

AUS LE GE SCHRIFT: 23.APRIL1959FROM LE GE WRITTEN: APRIL 23, 1959

Gegenstand des Hauptpatentes ist ein Ausatemventil für Atemschutzmasken mit aus elastischem Stoff, wie Gummi, Kunststoff od. dgl., bestehender und mittig befestigter Ventilscheibe, die zwischen ihrem Außenrand und dem Außenrand des verstärkten Mittelteiles auf ganzer Länge als Kegelstumpfmantel ausgebildet ist. Infolge dieser Ausbildung wird die Ventilscheibe bei Luftdurchgang nahezu zu einer ebenen Fläche verformt. Dabei wird die Rückstellkraft der Scheibe kleiner. Hierdurch ergeben sich Vorteile hinsichtlich des Atemwiderstandes.The subject of the main patent is an exhalation valve for respirators made of elastic material, such as Rubber, plastic or the like, existing and centrally fixed valve disc, which between its outer edge and the outer edge of the reinforced central part is designed as a truncated cone jacket over its entire length is. As a result of this design, the valve disk becomes almost a flat surface when air passes through it deformed. The restoring force of the disk becomes smaller. This results in advantages with regard to of breathing resistance.

Die Erfindung betrifft eine weitere Ausbildung des Gegenstandes des Hauptpatentes und besteht darin, daß die Dicke der Ventilscheibe zwischen dem Außenrand des verstärkten Mittelteiles und dem Außenrand der Scheibe abnimmt. Dadurch wird der Vorteil erreicht, daß das Ventil sich beim Luftdurchgang leichter öffnet und daß seine Rückstellkraft bei steigendem Luftdurchgang nicht zu klein wird.The invention relates to a further embodiment of the subject matter of the main patent and consists in that the thickness of the valve disc between the outer edge of the reinforced central part and the outer edge the disc decreases. This has the advantage that the valve is in the passage of air opens more easily and that its restoring force is not too small with increasing air passage.

In der Zeichnung ist eine Ausführungsform der Erfindung schematisch im Schnitt dargestellt.In the drawing, an embodiment of the invention is shown schematically in section.

Die Ventilscheibe 4 ist im Mittelteil mit einem Einzug 4 a versehen, mit dem sie an dem in gestrichelter Linienführung dargestellten Ventilknopf 3 befestigt ist. Die Knopfhöhe und der Winkel der Berührenden an der Ventilscheibe 4 bestimmen die Vorspannung des Ventils. Die Ventilscheibe ist aus mehreren konzentrischen, stufenförmig gegeneinander in Richtung der durchstreichenden Luft versetzten Scheiben und Ringen 5 gebildet. Wie die Darstellung erkennen läßt,The valve disc 4 is provided in the middle part with an indentation 4 a, with which it is connected to the dashed line Lines shown valve button 3 is attached. The height of the button and the angle of the person touching it on the valve disc 4 determine the preload of the valve. The valve disc is made up of several concentric, panes and staggered against each other in the direction of the sweeping air Rings 5 formed. As the illustration shows,

Ausatemventil für AtemschutzmaskenExhalation valve for respirators

Zusatz zum Patent 1 027 518Addendum to patent 1,027,518

Anmelder:
Drägerwerk, Heinr. & Bernh. Dräger,
Lübeck, Moislinger Allee 53-55Applicant:
Drägerwerk, Heinr. & Bernh. Dräger,
Lübeck, Moislinger Allee 53-55

nimmt die Dicke 6 der Ventilscheibe 4 von ihrer Mitte in Richtung zum Außenrand 7 ab. Dadurch ergibt sich der obengenannte Vorteil.the thickness 6 of the valve disk 4 decreases from its center in the direction of the outer edge 7. This results in the above advantage.

Claims (1)

Patentanspruch:
Ausatemventil für Atemschutzmasken nach Patent 1 027 518, dadurch gekennzeichnet, daß die Dicke (6) der Ventilscheibe (4) zwischen dem Außenrand des verstärkten Mittelteiles und dem Außenrand (7) der Scheibe abnimmt.Claim:
Exhalation valve for respiratory protection masks according to Patent 1,027,518, characterized in that the thickness (6) of the valve disc (4) decreases between the outer edge of the reinforced central part and the outer edge (7) of the disc. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DED22030A 1954-09-08 1955-12-31 Exhalation valve for breathing masks Pending DE1055969B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED22030A DE1055969B (en) 1954-09-08 1955-12-31 Exhalation valve for breathing masks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DED18628A DE1027518B (en) 1954-09-08 1954-09-08 Exhalation valve for respirators with a valve disc made of elastic material and attached in the center
DED22030A DE1055969B (en) 1954-09-08 1955-12-31 Exhalation valve for breathing masks

Publications (1)

Publication Number Publication Date
DE1055969B true DE1055969B (en) 1959-04-23

Family

ID=7037309

Family Applications (1)

Application Number Title Priority Date Filing Date
DED22030A Pending DE1055969B (en) 1954-09-08 1955-12-31 Exhalation valve for breathing masks

Country Status (1)

Country Link
DE (1) DE1055969B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176469A (en) * 1977-02-14 1979-12-04 Timco Gary G Wave simulator
EP0225744A1 (en) * 1985-11-15 1987-06-16 National Research Development Corporation Powered respirators
US4867653A (en) * 1988-01-20 1989-09-19 Grace Inc. Diaphragm pump
US4905575A (en) * 1988-10-20 1990-03-06 Rosemount Inc. Solid state differential pressure sensor with overpressure stop and free edge construction
FR2644852A1 (en) * 1988-01-20 1990-09-28 Graco Inc Diaphragm pump, diaphragm, retaining flap and air valve for this pump
EP4218943A1 (en) * 2022-01-26 2023-08-02 3M Innovative Properties Company Valve for respiratory mask

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176469A (en) * 1977-02-14 1979-12-04 Timco Gary G Wave simulator
EP0225744A1 (en) * 1985-11-15 1987-06-16 National Research Development Corporation Powered respirators
US5125402A (en) * 1985-11-15 1992-06-30 National Research Development Corporation Powered respirators
US4867653A (en) * 1988-01-20 1989-09-19 Grace Inc. Diaphragm pump
FR2644852A1 (en) * 1988-01-20 1990-09-28 Graco Inc Diaphragm pump, diaphragm, retaining flap and air valve for this pump
US4905575A (en) * 1988-10-20 1990-03-06 Rosemount Inc. Solid state differential pressure sensor with overpressure stop and free edge construction
EP4218943A1 (en) * 2022-01-26 2023-08-02 3M Innovative Properties Company Valve for respiratory mask

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