DE142817C - - Google Patents
Info
- Publication number
- DE142817C DE142817C DENDAT142817D DE142817DA DE142817C DE 142817 C DE142817 C DE 142817C DE NDAT142817 D DENDAT142817 D DE NDAT142817D DE 142817D A DE142817D A DE 142817DA DE 142817 C DE142817 C DE 142817C
- Authority
- DE
- Germany
- Prior art keywords
- outside air
- face
- nozzle
- mouthpiece
- shape
- 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
Links
- 230000000875 corresponding Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 claims 1
- 230000029058 respiratory gaseous exchange Effects 0.000 claims 1
- 230000000241 respiratory Effects 0.000 description 1
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
- A62B18/003—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 having means for creating a fresh air curtain
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Helmets And Other Head Coverings (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Den Gegenstand der Erfindung bildet eine Verbesserung an Atmungshelmen.The subject of the invention is an improvement in respiratory helmets.
Die Verbesserung besteht darin, daß das oberhalb des Gesichts angeordnete Mundstück der Außenluftleitung sich düsenartig verengt, wobei die Düsenöffnung zweckmäßig die Gestalt eines der Gesichtsform entsprechend gekrümmten Schlitzes besitzt.The improvement is that the mouthpiece is located above the face the outside air line narrows like a nozzle, the nozzle opening expediently having the shape has a slot that is curved to match the shape of the face.
Die düsenartige Verengung des Mundstücks bezweckt und bewirkt eine festere Führung des Außenluftstromes. Letzterer nimmt nach Verlassen des Mundstücks die Form eines breiten Streifens an, welcher das Gesicht des Trägers gänzlich einhüllt. Dadurch wird die Verwendung besonderer Gesichtsmasken entbehrlich gemacht.The nozzle-like narrowing of the mouthpiece aims and causes a firmer guidance of the outside air flow. The latter takes the form of a after leaving the mouthpiece wide strip, which completely envelops the wearer's face. This will make the Use of special face masks made dispensable.
Beiliegende Zeichnung stellt eine Ausführungsform der Erfindung dar:The accompanying drawing shows an embodiment of the invention:
Fig. ι ist eine Vorderansicht,
Fig. 2 ein Schnitt nach Linie A-B von Fig- -i,.Fig. Ι is a front view,
Fig. 2 is a section along line AB of Fig- -i ,.
Fig. 3 eine Seitenansicht.Fig. 3 is a side view.
Es bezeichnet:It denotes:
α den Helm oder die sonstige Kopfbedeckung, b den über das Gesicht vorspringenden Schirm derselben, c ist die Luftleitung, an deren eines Ende d sich eine Schlauchleitung anschließt, während das andere Ende e den Schirm durchdringt, so daß,, wenn die Drosselklappe f geöffnet ist, die Außenluft in der Pfeilrichtung (s. Fig. 2) zur Düsenöffnung e gelangt und von hier aus in einem breiten, das Gesicht gänzlich einhüllenden Streifen niederströmt. α the helmet or other headgear, b the umbrella protruding over the face, c is the air line, at one end d of which a hose line connects, while the other end e penetrates the umbrella so that, when the throttle valve f is open the outside air reaches the nozzle opening e in the direction of the arrow (see FIG. 2) and flows down from here in a wide strip that completely envelops the face.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE142817C true DE142817C (en) |
Family
ID=410350
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT142817D Active DE142817C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE142817C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE917835C (en) * | 1951-03-06 | 1954-09-13 | Marianne Loenne Geb Koppers | Protective device for workers who are in a dusty atmosphere |
DE1139747B (en) * | 1959-12-04 | 1962-11-15 | Wolfgang Rentsch | Fresh air breathing apparatus, especially for supplying the occupants of vehicles with oxygen |
EP0027521A1 (en) * | 1979-09-06 | 1981-04-29 | MüANYAGIPARI KUTATO INTEZET | Head protection hood |
EP0336518A2 (en) * | 1988-04-08 | 1989-10-11 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Portable smoke and gas dispeller |
-
0
- DE DENDAT142817D patent/DE142817C/de active Active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE917835C (en) * | 1951-03-06 | 1954-09-13 | Marianne Loenne Geb Koppers | Protective device for workers who are in a dusty atmosphere |
DE1139747B (en) * | 1959-12-04 | 1962-11-15 | Wolfgang Rentsch | Fresh air breathing apparatus, especially for supplying the occupants of vehicles with oxygen |
EP0027521A1 (en) * | 1979-09-06 | 1981-04-29 | MüANYAGIPARI KUTATO INTEZET | Head protection hood |
EP0336518A2 (en) * | 1988-04-08 | 1989-10-11 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Portable smoke and gas dispeller |
EP0336518A3 (en) * | 1988-04-08 | 1991-04-24 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Portable smoke and gas dispeller |
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