AT147531B - Gas mask. - Google Patents
Gas mask.Info
- Publication number
- AT147531B AT147531B AT147531DA AT147531B AT 147531 B AT147531 B AT 147531B AT 147531D A AT147531D A AT 147531DA AT 147531 B AT147531 B AT 147531B
- Authority
- AT
- Austria
- Prior art keywords
- mask
- gas mask
- gas
- face
- dead space
- Prior art date
Links
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Description
<Desc/Clms Page number 1>
Gassehutzmaske.
Bei Gasschutzmasken soll der Totraum innerhalb der angelegten Maske, also der Raum zwischen Maske und Gesicht, möglichst klein sein, damit die ausgeatmete Luft nicht wieder zum Teil miteingeatmet wird. Es wird daher die Gasmaske der Form des Gesichtes möglichst angepasst, wodurch aber ihre Herstellung erschwert und verteuert wird.
Man hat bereits versucht, durch Einnähen reichlicher Falten in den Maskenstoff einen kleineren inneren Maskenrauminhalt zu schaffen ; dies hatte jedoch den Nachteil, dass die Nähte die Maskenoberfläche undicht machen und ein nachträgliches Verdichten erfordern. Trotzdem besteht immer die Gefahr, dass die Maske im Laufe der Zeit an den Nahtstellen wieder undicht wird.
Es ist deshalb erstrebenswert, die Maske ohne oder mit möglichst wenig Nähten herzustellen.
Dies ist aber aus einem ebenen unelastischen Stoff nur möglich, wenn man einen grossen Totraum der Maske zulässt, die dann billig herzustellen und haltbar ist.
Gemäss der Erfindung wird dieser Totraum durch Einlagekörper aus weichem oder elastischem Material verkleinert, die auf die Dichtigkeit der Maske keinen Einfluss haben.
Die Einlagekörper können gasdicht sein, doch ist dies nicht unbedingt nötig. Als Material für die
EMI1.1
Die Einlagekörper können der Kopf-und Gesichtsform entsprechend gestaltet werden.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Gas mask.
In the case of gas protective masks, the dead space within the mask, i.e. the space between the mask and face, should be as small as possible, so that some of the exhaled air is not inhaled again. The gas mask is therefore adapted to the shape of the face as much as possible, which makes its manufacture more difficult and expensive.
Attempts have already been made to create a smaller internal mask space by sewing plentiful folds into the mask material; however, this had the disadvantage that the seams made the mask surface leaky and required subsequent compaction. Nevertheless, there is always the risk that the mask will leak again at the seams over time.
It is therefore desirable to produce the mask with no or as few seams as possible.
However, this is only possible from a flat, inelastic material if a large dead space is allowed for the mask, which is then cheap to manufacture and durable.
According to the invention, this dead space is reduced by insert bodies made of soft or elastic material, which have no influence on the tightness of the mask.
The insert body can be gas-tight, but this is not absolutely necessary. As material for the
EMI1.1
The insert bodies can be designed to match the shape of the head and face.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT147531T | 1935-02-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT147531B true AT147531B (en) | 1936-11-10 |
Family
ID=3644650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT147531D AT147531B (en) | 1935-02-14 | 1935-02-14 | Gas mask. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT147531B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1270405B (en) * | 1965-02-22 | 1968-06-12 | Albert Aumueller | Breathing protection device for the nose |
-
1935
- 1935-02-14 AT AT147531D patent/AT147531B/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1270405B (en) * | 1965-02-22 | 1968-06-12 | Albert Aumueller | Breathing protection device for the nose |
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