AT141373B - Smoke and mist filters. - Google Patents
Smoke and mist filters.Info
- Publication number
- AT141373B AT141373B AT141373DA AT141373B AT 141373 B AT141373 B AT 141373B AT 141373D A AT141373D A AT 141373DA AT 141373 B AT141373 B AT 141373B
- Authority
- AT
- Austria
- Prior art keywords
- smoke
- filters
- mist
- mist filters
- mist filter
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Filtering Materials (AREA)
Description
<Desc/Clms Page number 1>
Rauch-und Nebelfilter.
Durch das Patent Nr. 115845 ist ein Verfahren zur Herstellung eines Nebelfilterstoffes geschützt, welches im wesentlichen in einer weitgehenden Zerfaserung bestimmter Stoffe, wie Zellstoff, Watte, Filz, Asbestwolle, besteht. Es hat sich nun durch Versuche herausgestellt, dass die so erhaltenen Nebelfilterstoffe den bisher bekannten überlegen sind, da sie auch gegen giftige Schwebstoffe wirksam sind. und dass diese Überlegenheit so weit geht, um wirksame Schichten dieses Stoffes selbst in den bekannten Kleinfiltern, also z.
B. solchen mit Durchmessern von 90-110 mm, unterzubringen, weil man die Höhe dieser Schicht infolge der hohen Filtrationswirkung des Stoffes so weit beschränken kann, dass sie die Beschickung der Kleinfilter mit den üblichen gasbindenden oder gasabsorbierenden Stoffen nicht beein- trächtigt und ihren Atmungswiderstand nicht unerträglich erhöht. Dadurch wird ein wesentlicher und lange erstrebter Vorteil erreicht.
Man ist für Nebelfilterzwecke jetzt nicht mehr auf die Filterbüchsen angewiesen, deren Verwendung nur unter Einschaltung des lästigen Atmungssehlauches mit allen seinen Nachteilen möglich ist, sondern man kann nunmehr Kleinnebelfilter herstellen, die wie die sonstigen Kleinfilter unmittelbar an der Maske befestigt werden können und so das Tragen des Atmungsselhlauehes überflüssig machen. Die Höhe der Nebelfilterschieht gemäss des Stammpatentes in Kleinfiltern. also
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bierenden Stoffen und d ein über der Nebelfilterschicht liegendes Zwischensieb.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
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Smoke and mist filters.
Patent No. 115845 protects a process for the production of a mist filter material which essentially consists in the extensive defibration of certain materials such as cellulose, wadding, felt, asbestos wool. It has now been found through tests that the mist filter materials obtained in this way are superior to those previously known, since they are also effective against toxic suspended matter. and that this superiority goes so far as to provide effective layers of this substance even in the well-known small filters, e.g.
B. those with a diameter of 90-110 mm, because you can limit the height of this layer due to the high filtration effect of the substance so that it does not affect the loading of the small filters with the usual gas-binding or gas-absorbing substances and their breathing resistance not unbearably increased. This achieves an essential and long-sought advantage.
One is no longer dependent on the filter canisters for mist filter purposes, which can only be used with the involvement of the annoying breathing tube with all its disadvantages, but one can now produce small mist filters which, like the other small filters, can be attached directly to the mask and so they can be worn Make the breathing arm superfluous. According to the parent patent, the height of the mist filter is in small filters. so
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bating substances and d an intermediate sieve overlying the mist filter layer.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE115845X | 1928-01-30 | ||
DE377542X | 1931-01-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT141373B true AT141373B (en) | 1935-04-10 |
Family
ID=34066181
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT115845D AT115845B (en) | 1928-01-30 | 1928-12-15 | Filters, in particular breathing filters for smoke and mist, and processes for their manufacture. |
AT141373D AT141373B (en) | 1928-01-30 | 1932-01-22 | Smoke and mist filters. |
AT136524D AT136524B (en) | 1928-01-30 | 1932-01-29 | Gas mask. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT115845D AT115845B (en) | 1928-01-30 | 1928-12-15 | Filters, in particular breathing filters for smoke and mist, and processes for their manufacture. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT136524D AT136524B (en) | 1928-01-30 | 1932-01-29 | Gas mask. |
Country Status (2)
Country | Link |
---|---|
AT (3) | AT115845B (en) |
GB (1) | GB377542A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2128897A (en) * | 1982-11-01 | 1984-05-10 | Racal Safety Ltd | Powered air supply unit for respirators |
-
1928
- 1928-12-15 AT AT115845D patent/AT115845B/en active
-
1931
- 1931-11-23 GB GB32450/31A patent/GB377542A/en not_active Expired
-
1932
- 1932-01-22 AT AT141373D patent/AT141373B/en active
- 1932-01-29 AT AT136524D patent/AT136524B/en active
Also Published As
Publication number | Publication date |
---|---|
GB377542A (en) | 1932-07-28 |
AT115845B (en) | 1930-01-10 |
AT136524B (en) | 1934-02-10 |
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