DE701923C - Insert filter with a gas-binding filter material for gas protection masks - Google Patents

Insert filter with a gas-binding filter material for gas protection masks

Info

Publication number
DE701923C
DE701923C DE1931D0060212 DED0060212D DE701923C DE 701923 C DE701923 C DE 701923C DE 1931D0060212 DE1931D0060212 DE 1931D0060212 DE D0060212 D DED0060212 D DE D0060212D DE 701923 C DE701923 C DE 701923C
Authority
DE
Germany
Prior art keywords
gas
filter
insert
binding
protection masks
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.)
Expired
Application number
DE1931D0060212
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.)
Dragerwerk Heinr U Bernh Drager
Draegerwerk AG and Co KGaA
Original Assignee
Dragerwerk Heinr U Bernh Drager
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 to DED54876D priority Critical patent/DE644700C/en
Application filed by Dragerwerk Heinr U Bernh Drager, Draegerwerk AG and Co KGaA filed Critical Dragerwerk Heinr U Bernh Drager
Priority to DE1931D0060212 priority patent/DE701923C/en
Application granted granted Critical
Publication of DE701923C publication Critical patent/DE701923C/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00Filters for breathing-protection purposes
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B19/00Cartridges with absorbing substances for respiratory apparatus

Description

Einsatzfilter mit einer gasbindenden Filtermasse für Gasschutzmasken Gegenstand des Patents 644 700 ist ein Verfahren und eine Vorrichtung zur Herstellung von Schwebstoffiltern aus natürlichen oder künstlichen, wahllos gestapelten Fasern für Atemschutzgeräte, wonach eine aus Zellstoff, Watte, Filz oder Asbestwolle bestehende Faserstoffmasse durch Bürsten, Kämme oder ähnlich wirkende Vorrichtungen, vorzugsweise durch in Drehung versetzte walzenförmige Drahtbürsten, aus ihrem Zusammenhang gerissen und die auf diese Weise erhaltenen Fasern unmittelbar unter Ausschluß von Bindemitteln auf trockenem Wege in einen die gewünschte Formgebung des Sch-,vebstofffilters bestimmenden und erhaltenden Behälter mit teilweise luftdurchlässigen Wandungen mit Hilfe eines Luftstromes überführt werden.Insert filter with a gas-binding filter mass for gas protective masks The subject of the patent 644 700 is a method and a device for the production of suspended matter filters from natural or artificial, randomly stacked fibers for breathing apparatus, after which a fibrous material consisting of cellulose, wadding, felt or asbestos wool by brushing, combing or similarly acting devices, preferably by rotating roller-shaped wire brushes, torn out of their context and the fibers obtained in this way directly to the exclusion of binders in a dry way in a container with partially air-permeable walls that determines and maintains the desired shape of the dust filter Be transferred using an air stream.

Versuche haben ergeben, daß die so erhaltenen Schwebstoffilter den bisher bekannten Schwebstoffiltern erheblich überlegen sind, so daß es nunmehr möglich ist, ein Atemschutzfilter zti bauen, das unmittelbar in die Gasschutzmaske eingeschraubt werden kann und neben einer gasbindenden Filtermasse ein praktisch brauchbares Schwebstoffilter enthält.Experiments have shown that the particulate filter thus obtained HEPA filters known hitherto are considerably superior, so that it is now possible is to build a respiratory protection filter that is screwed directly into the gas mask can be and in addition to a gas-binding filter mass a practically usable HEPA filter contains.

Die bekannten Schwebstoffilter hatten, um den Atemwiderstand in erträglichen Grenzen zu halten, eine so große Oberfläche, daß sie in ein unmittelbar in die Gasschutzmaske einschraubbares Einsatzfilter nicht eingebaut werden konnten.The known HEPA filters had to make the breathing resistance bearable Limits to keep such a large surface area that they are in a direct contact with the gas mask screw-in insert filter could not be installed.

Die Höhe der Schwebstoffilterschicht beim Gegenstande der 'Erfindung läßt sich infolge der hohen Filtrationswirkung so weit herabsetzen, daß sie die Beschickung der Einsatzfilter mit den üblichen gasbindenden oder gasabsorbierenden Stoffen nicht beeinträchtigt und ihren Atemwiderstand nicht unerträglich erhöht.The height of the particulate filter layer in the subject matter of the invention can be reduced so far as a result of the high filtration effect that they Loading of the insert filter with the usual gas-binding or gas-absorbing ones Substances are not impaired and their breathing resistance does not increase unbearably.

Dadurch wird ein sehr wesentlicher und lange erstrebter Vorteil erreicht. Man ist für Schwebstoffilterzwecke jetzt nicht mehr auf die Filterbüchsen angewiesen, deren Verwendung nur unter Einschaltung eines Atemschlauches möglich ist, sondern man kann nunmehr Kleinschwebstoffilter, z. B. solche mit Durchmessern von 9o bis i io mm, herstellen, die, wie die sonstigen Kleinfilter, unmittelbar an der Maske befestigt werden können und so das Tragen des Atemschlauches entbehrlich machen. Die Höhe der Schwebstoffilterschicht in Einsatzfiltern beträgt etwa 30 mm.This achieves a very important and long-sought advantage. You are now no longer dependent on the filter cans for HEPA filter purposes, the use of which is only possible with the switching on of a breathing tube, but you can now small particulate matter filter, z. B. produce those with diameters of 9o to io mm, which, like the other small filters, can be attached directly to the mask and thus make it unnecessary to wear the breathing tube. The height of the particulate filter layer in insert filters is about 30 mm.

In der Zeichnung ist das neue Einsatzfilter im Längsschnitt dargestellt.In the drawing, the new insert filter is shown in longitudinal section.

In dem Filtereinsatz a ist neben der Schichte aus gasbindenden oder gasabsorbierenden Stoffen eine Schwebstoffilterschicht b untergebracht, die durch das Zwischensieb d von der gasbindenden oder gasabsorbierenden Schicht c getrennt ist.In the filter insert a is next to the layer of gas-binding or Gas-absorbing substances housed a particulate filter layer b, which through the intermediate screen d is separated from the gas-binding or gas-absorbing layer c is.

Claims (1)

PATENTANSPRUCH: Einsatzfilter mit einer gasbindenden Filtermasse für Gasschutzmasken, dadurch gekennzeichnet, daß im Gehäuse des Einsatzfilters ein nach dem Verfahren nach-Patent 644700 hergestelltes Schwebstofffilter angeordnet ist.PATENT CLAIM: Insert filter with a gas-binding filter material for Gas protective masks, characterized in that in the housing of the insert filter an after HEPA filter manufactured according to the method according to patent 644700 is arranged.
DE1931D0060212 1928-01-30 1931-01-26 Insert filter with a gas-binding filter material for gas protection masks Expired DE701923C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DED54876D DE644700C (en) 1928-01-30 1928-01-30 Process for the production of particulate filters
DE1931D0060212 DE701923C (en) 1928-01-30 1931-01-26 Insert filter with a gas-binding filter material for gas protection masks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DED54876D DE644700C (en) 1928-01-30 1928-01-30 Process for the production of particulate filters
DE1931D0060212 DE701923C (en) 1928-01-30 1931-01-26 Insert filter with a gas-binding filter material for gas protection masks

Publications (1)

Publication Number Publication Date
DE701923C true DE701923C (en) 1941-01-27

Family

ID=7057891

Family Applications (2)

Application Number Title Priority Date Filing Date
DED54876D Expired DE644700C (en) 1928-01-30 1928-01-30 Process for the production of particulate filters
DE1931D0060212 Expired DE701923C (en) 1928-01-30 1931-01-26 Insert filter with a gas-binding filter material for gas protection masks

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DED54876D Expired DE644700C (en) 1928-01-30 1928-01-30 Process for the production of particulate filters

Country Status (1)

Country Link
DE (2) DE644700C (en)

Also Published As

Publication number Publication date
DE644700C (en) 1937-05-11

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