DE704584C - HEPA filter for breathing apparatus - Google Patents

HEPA filter for breathing apparatus

Info

Publication number
DE704584C
DE704584C DEB169282D DEB0169282D DE704584C DE 704584 C DE704584 C DE 704584C DE B169282 D DEB169282 D DE B169282D DE B0169282 D DEB0169282 D DE B0169282D DE 704584 C DE704584 C DE 704584C
Authority
DE
Germany
Prior art keywords
filter
breathing apparatus
hepa filter
edges
fine
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
DEB169282D
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.)
Bartels & Rieger
Original Assignee
Bartels & Rieger
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
Application filed by Bartels & Rieger filed Critical Bartels & Rieger
Priority to DEB169282D priority Critical patent/DE704584C/en
Application granted granted Critical
Publication of DE704584C publication Critical patent/DE704584C/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

Description

Schwebstoffilter für Atemschutzgeräte Gegenstand der Erfindung ist ein Schwebstoffilter für Atetnscliutzgei-äte, das aus einem Hnhlkörper aus feinporigem öder feitifasrigetn Filterstoff besteht.Particulate matter filter for breathing apparatus is the subject of the invention a HEPA filter for Atetnscliutzgei-äte, which consists of an enveloping body made of fine-pored or feitifasigen filter material.

Es ist bekannt. Atemschutzfilter gegen feinste Staube und Schwebstoffe aus Sonderfilterpapier oder anderen, z. B. filzigen Stotcn herzustellen. L'tn eine genügende Fläche dieser Stoffe in einem Filtergehäuse unterbringen zu können, also eine grol:te Filteroberfläche zu erhalten, werden diese Filter aus einzelnen Kreisringscheiben gebildet, die abwechselnd an ihrem Außenrand und ihrem Innenrand zusammengeheftet, d. h. in lotrechter Richtung im Zickzack zusammengefügt werden. Es sind auch Schivebstoffilter bekannt, die MUS einzelnen kegelstumpf- oder pyrami.denstumpfartigen, konzentrisch ineinandergefügten Körpern gebildet sind. Die Zusammenfügung erfolgt ebenfalls durch Zusammenheften, auf diese Weise wird ein Zickzackiilter quer zur Strömungsrichtung der Atemluft gebildet. Die Nahtstellen dieser Filter sind durch l',andringc verklebt, um das Filter dicht zu machen.It is known. Respiratory protection filter against the finest dust and suspended matter made of special filter paper or other, e.g. B. to produce felty stumps. To be able to accommodate a sufficient area of these substances in a filter housing, i.e. to obtain a large filter surface, these filters are made up of individual circular ring disks, which are alternately stapled together at their outer and inner edges, i.e. zigzagged in a vertical direction . There are also Schivebstoffilter known, the MUS individual truncated cone or pyrami.den frustum-like, concentrically nested bodies are formed. The assembly is also carried out by stapling together, in this way a zigzag filter is formed across the direction of flow of the breathing air. The seams of these filters are glued by l ', andringc to make the filter tight.

Die Erfindung besteht nun darin, daß das Schwebstoffilter aus einem einzigen, annähernd rechteckigen Stück Filterpappe durch die an sich bekannte harmonikaartige Balgfaltung gebildet ist und d:iß seine Längskanten und seine Kanten am Boden durch einen Klebestreifen verklebt sind.The invention now consists in the fact that the particulate filter consists of a single, almost rectangular piece of filter cardboard through the well-known harmonica-like Bellows fold is formed and d: eats its longitudinal edges and its edges at the bottom an adhesive strip are glued.

Das Filter nach der Erfindung besitzt außer einem Klebestreifen in der Filterlängsrichtung und am Filterboden, wo die Kanten des Filterstoffmantels zusammenstoßen, keinerlei die Filteroberfläche verkleinernde Verbindungen wie Nähte oder Klelxstreifen. Das Filter weist somit auf verhältnismäßig kleinem Raum eine große Filteroberfläche auf.The filter according to the invention has in addition to an adhesive strip in the longitudinal direction of the filter and at the bottom of the filter, where the edges of the filter material jacket collide, no connections such as seams that reduce the filter surface or Klelx strips. The filter thus has a relatively small space large filter surface.

Die Anzahl der Falten bzw. Kanten und Ecken des Balgfilters kann beliebig sein. Der Balg ist an seinem offenen Ende mit einem Anschlußflansch aus gleichem Filterstoff bzw. Filterpappe versehen, mittels dessen er in dem Filtergehäuse befestigt werden kann.The number of folds or edges and corners of the bellows filter can be arbitrary be. The bellows is at its open end with a connecting flange of the same Provided filter material or filter cardboard, by means of which it is fastened in the filter housing can be.

In der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes in schaubildlicher Ansicht und teilweisem Schnitt dargestellt.The drawing shows an exemplary embodiment of the subject matter of the invention shown in perspective and partial section.

Claims (1)

PATLN-fANsrtzccIt: Schwebstoffilter mit einer feinporigen oder feinfasrigen Filtermasse für Atemschutzgeräte, dadurch gekennzeichnet, daß es aus einem einzigen, annähernd rechteckigen Stück Filterpappe durch die an sich bekannte harmonikaartige Balgfaltung gebildet ist und claß seine Längskanten und seine Kanten am Boden durch einen Klebestreifen verklebt sind.PATLN-FANsrtzccIt: HEPA filter with a fine-pored or fine-fiber one Filter material for breathing apparatus, characterized in that it consists of a single, approximately rectangular piece of filter cardboard through the well-known harmonica-like Bellows fold is formed and claß its longitudinal edges and its edges on the bottom an adhesive strip are glued.
DEB169282D 1935-04-04 1935-04-04 HEPA filter for breathing apparatus Expired DE704584C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB169282D DE704584C (en) 1935-04-04 1935-04-04 HEPA filter for breathing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB169282D DE704584C (en) 1935-04-04 1935-04-04 HEPA filter for breathing apparatus

Publications (1)

Publication Number Publication Date
DE704584C true DE704584C (en) 1941-04-02

Family

ID=7006280

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB169282D Expired DE704584C (en) 1935-04-04 1935-04-04 HEPA filter for breathing apparatus

Country Status (1)

Country Link
DE (1) DE704584C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959621C (en) * 1953-01-31 1957-03-07 Draegerwerk Ag Fine dust filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959621C (en) * 1953-01-31 1957-03-07 Draegerwerk Ag Fine dust filter

Similar Documents

Publication Publication Date Title
DE1032224B (en) Filter insert made from a sheet of porous material for liquids and gases
DE704584C (en) HEPA filter for breathing apparatus
DE965012C (en) HEPA filters made of paper, cardboard or the like for breathing apparatus
DE656164C (en) Vacuum cleaner filters
DE706392C (en) Particle filter and process for its manufacture
DE588263C (en) Centrifugal drum for cleaning liquids
CH243059A (en) Gas filter with filter cloth.
DE7526131U (en) FILTER ELEMENT FOR A FILTER SYSTEM
DE482939C (en) Filter for breathing apparatus
DE502905C (en) Nutsche equipped with heating channels
AT274233B (en) A coffin made of flat foldable cuts and a stabilizing frame
AT150325B (en) Flycatcher with suspension straps.
AT153803B (en) Gas filter.
CH200188A (en) Dust and suspended matter filters for breathing apparatus.
DE702099C (en) Air purification cartridge
DE531857C (en) Building game
DE538735C (en) Pot water seal
DE1112900B (en) Filter for respiratory protection devices, which consists of several circular filter discs
DE648972C (en) Gas filters, in particular respiratory protection filters
DE729368C (en) Air purifiers for internal combustion engines
DE205230C (en)
AT203275B (en) Filter device for filtering diesel fuel
DE525339C (en) Construction for grave mound
DE434336C (en) Box for fluid containers or the like, especially on motor vehicles
DE685583C (en) Filter connection piece for gas masks