EP0249124B1 - Filtergehäuse für Atemschutzmasken - Google Patents

Filtergehäuse für Atemschutzmasken Download PDF

Info

Publication number
EP0249124B1
EP0249124B1 EP87107937A EP87107937A EP0249124B1 EP 0249124 B1 EP0249124 B1 EP 0249124B1 EP 87107937 A EP87107937 A EP 87107937A EP 87107937 A EP87107937 A EP 87107937A EP 0249124 B1 EP0249124 B1 EP 0249124B1
Authority
EP
European Patent Office
Prior art keywords
filter
filter housing
sleeve
housing
housing according
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 - Lifetime
Application number
EP87107937A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0249124A2 (de
EP0249124A3 (en
Inventor
Gerd Pantaleon-Stemberg
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.)
Draegerwerk AG and Co KGaA
Original Assignee
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
Application filed by Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Publication of EP0249124A2 publication Critical patent/EP0249124A2/de
Publication of EP0249124A3 publication Critical patent/EP0249124A3/de
Application granted granted Critical
Publication of EP0249124B1 publication Critical patent/EP0249124B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/02—Filters for breathing-protection purposes for respirators

Definitions

  • the invention relates to a filter housing for respiratory masks according to the preamble of claim 1.
  • Such a filter housing has become known from DE-C-960 965.
  • This filter housing has a threaded insert attached to it, into which a filter insert can be screwed.
  • the threaded insert also carries a base part which receives the inhalation valve.
  • an extension ring that can be placed on the filter insert is able to accommodate further threaded filter inserts.
  • a disadvantage of this arrangement is the need to only be able to accommodate filter inserts with the required external threads, which can either be screwed into the thread insert or the extension ring. Filter cartridges with a smooth outer wall and filter cartridges with a smaller diameter than the clear width of the threaded cartridge or the extension ring cannot be used.
  • the known filter housing according to DE-U-71 16 675 serves to accommodate filter inserts which have collars in the region of one of their end faces, which rest on the edge of the filter housing when the filter is used.
  • a cover is screwed onto an external thread of the filter housing and presses the filter collar sealingly against the edge of the filter housing.
  • a higher cover is required due to the now greater overall height of both filters, which presses both filters against the edge of the filter housing in a sealing manner.
  • the individual filter inserts have different heights depending on the design and purpose. If the higher cover is used to hold only one filter insert or to hold several filter inserts which are, however, lower in their overall height, this results in an unnecessarily large space requirement for the filter housing, which becomes bulky and unwieldy.
  • the screw cap provided for this purpose already hits the filter insert before the screw thread can grip securely.
  • the user of the known respirator mask is therefore required to keep and use the corresponding screw cap for the use of different filter inserts of different heights or combinations.
  • the present invention is therefore based on the object of improving a filter housing for breathing masks of the type mentioned so that filter inserts of different heights and outer diameters and in various combinations can be fastened in it with the same holding device.
  • the housing wall of the filter housing can now be designed to accommodate filter inserts of different heights.
  • the sleeve In order to hold filter inserts with a height that exceeds the depth of the housing wall, the sleeve only has to be pushed into the housing wall over a shorter distance until the holding device presses the filter insert firmly and tightly onto the housing base. If filter inserts with a lower overall height are to be attached, the sleeve must be pushed deeper into the housing wall.
  • the sleeve can either be inserted into the filter housing so that the Helte device serves as an extension of the housing wall, but it can also be inserted vice versa into the housing wall so that the holding device points in the direction of the housing bottom and thus acts as a shortening of the housing wall. This means that filter inserts with the smallest overall height can be held securely and tightly.
  • the inventive arrangement of the sleeve within the filter housing therefore allows a clamping area for filter inserts of different heights and different combinations, which practically extends from the bottom of the filter housing to the height of the filter housing including the free height of the sleeve.
  • This enables a more universal use of a respirator mask, which can then optionally be equipped with a wide variety of filters as required, without corresponding holding devices such as screw caps having to be provided each time.
  • the sleeve is provided with an external thread, so that it can be screwed into a corresponding internal thread of the filter housing.
  • a further possibility of displaceably arranging the sleeve is to insert a spring ring on its smooth outer surface in a corresponding groove, which presses along the smooth inner surface of the filter housing and thus enables a secure displacement of the sleeve as well as a firm fit for fastening the filter inserts .
  • the holding device can be designed as a collar encircling the end circumference of the sleeve. With this collar either the filter insert itself is pressed against the bottom of the filter housing, or one at the foot of the The sealing lip attached to the filter insert is gripped by the collar.
  • the circumferential collar of the sleeve in the end circumference offers the advantageous possibility of holding even smaller filter inserts which do not reach the inner surface of the sleeve.
  • the sleeve expediently has a gripping knurl at its two end circumferences, by means of which the sleeve can either be screwed into the filter housing or can also be displaced.
  • the filter inserts preferably have a flange, which can be designed as a sealing lip or bead, by means of which they are held in the filter housing by the sleeve while maintaining the lowest possible structural height.
  • Fig. 1 shows a partial section through the filter housing (1) of a breathing mask, not shown, the housing base (6) is provided with a circumferential sealing ring (7).
  • the inner wall of the filter housing (1) is provided with an internal thread (10) into which a holding device designed as a sleeve (2) has a External thread (9) is screwed into it.
  • the sleeve (2) with its fastening device designed as a collar (8) holds a multi-layer coarse dust filter (3) on its housing designed as a filter cover (4).
  • the collar (8) presses the filter cover (4) on its sealing lip (5) against the sealing ring (7) of the housing base (6).
  • the filter cover (4) is placed against the sealing ring (7) and pressed against the housing base (6) by screwing in the sleeve (2) with its collar (8) ahead.
  • a double filter in combination of a gas filter (12) and particle filter (13) is fixed in the filter housing (1).
  • the sleeve (2) with its collar (8) encompassing a sealing bead (14) of the particle filter (13) is screwed into the filter housing (1).
  • the sleeve (2) is screwed with its collar (8) pointing away from the housing base (6) so that the gas filter (12) is pressed against the sealing ring (7) by the contact pressure on the sealing bead (14) of the particle filter (13) .
  • the sealing bead (14) seals the connection between the gas filter (12) and the particle filter (13).
  • the additional particle filter (13) is covered with the filter cover (4) of a single-layer coarse dust filter (3).
  • a circumferential elevation (15) is provided, via which the cover (4) engages.
  • the filter path of the particle filter (13) placed over the holder is held.
  • gripping knurls (11) are attached to both ends of the sleeve (2).

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
EP87107937A 1986-06-10 1987-06-02 Filtergehäuse für Atemschutzmasken Expired - Lifetime EP0249124B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863619479 DE3619479A1 (de) 1986-06-10 1986-06-10 Filtergehaeuse fuer atemschutzmasken
DE3619479 1986-06-10

Publications (3)

Publication Number Publication Date
EP0249124A2 EP0249124A2 (de) 1987-12-16
EP0249124A3 EP0249124A3 (en) 1989-08-23
EP0249124B1 true EP0249124B1 (de) 1991-10-30

Family

ID=6302684

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87107937A Expired - Lifetime EP0249124B1 (de) 1986-06-10 1987-06-02 Filtergehäuse für Atemschutzmasken

Country Status (8)

Country Link
US (1) US4832018A (enrdf_load_stackoverflow)
EP (1) EP0249124B1 (enrdf_load_stackoverflow)
JP (1) JPH0716523B2 (enrdf_load_stackoverflow)
BR (1) BR8702913A (enrdf_load_stackoverflow)
DE (2) DE3619479A1 (enrdf_load_stackoverflow)
ES (1) ES2027995T3 (enrdf_load_stackoverflow)
FI (1) FI84559C (enrdf_load_stackoverflow)
NO (1) NO170571C (enrdf_load_stackoverflow)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4991575A (en) * 1989-08-31 1991-02-12 Edward Fitz Disposable liner for breathing apparatus
US6216693B1 (en) 1995-01-20 2001-04-17 3M Innovative Properties Company Respirator having a compressible press fir filter element
US5595173A (en) * 1995-06-29 1997-01-21 Dodd, Jr.; Nevin W. Rehumidification filter for ventilation mask
SE503933C2 (sv) * 1995-10-04 1996-09-30 Siemens Elema Ab Anordning för att fixera och täta en behållare mot resp. lösgöra behållaren från ett lock
DE19608412C1 (de) * 1996-03-05 1997-05-28 Draegerwerk Ag Anschlußstück für eine Atemschutzmaske
US5704068A (en) * 1996-08-29 1998-01-06 Martin; Lee Cold weather cowl
US6076698A (en) * 1998-10-22 2000-06-20 Moldex-Metric, Inc. Molded storage container with dual compartments
US6701925B1 (en) 2002-04-11 2004-03-09 Todd A. Resnick Protective hood respirator
JP4890284B2 (ja) * 2007-02-02 2012-03-07 株式会社ライトボーイ 支柱支持具
NZ631446A (en) * 2013-10-03 2016-05-27 Resmed Ltd Mask vent with side wall
US9440775B2 (en) 2014-05-22 2016-09-13 3M Innovative Properties Company Prefilter cover for bidirectional-airflow respirator cartridge
US20160016457A1 (en) * 2014-07-18 2016-01-21 Caterpillar Inc. Cabin Air System
DE102016000770B3 (de) * 2016-01-26 2017-02-23 Bundesrepublik Deutschland, vertreten durch das Bundesministerium der Verteidigung, vertreten durch das Bundesamt für Ausrüstung, Informationstechnik und Nutzung der Bundeswehr Maskenfilter-Set
USD936226S1 (en) 2018-10-19 2021-11-16 3M Innovative Properties Company Respirator filter cartridge
US11766080B2 (en) 2020-06-26 2023-09-26 Mark Lamoncha Face shield for attachment to goggles or eyeglasses
US12041988B2 (en) 2020-06-26 2024-07-23 Mark Lamoncha Protective face mask for attachment to protective eye-ware
US11865261B2 (en) 2020-07-14 2024-01-09 Mark Lamoncha Respirator mask
RU2765220C1 (ru) * 2020-11-18 2022-01-26 Федеральное государственное бюджетное учреждение "33 Центральный научно-исследовательский испытательный институт" Министерства обороны Российской Федерации Фильтрующе-поглощающая коробка экстренной защиты

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE643430C (de) * 1937-04-08 Bernh Draeger Filter, insbesondere fuer Luefter von Gasschutzraeumen
DE7116675U (de) * 1975-02-20 Auergesellschaft Gmbh Filterpatrone für Atemschutzmasken
DE651573C (de) * 1937-10-15 Degea Akt Ges Auergesellschaft Atemschutzfilter mit auswechselbarem Schwebstoffilter
US1730227A (en) * 1923-03-31 1929-10-01 Lewis M Mcbride Gas mask
FR600673A (fr) * 1925-07-10 1926-02-12 Construction De Materiel De Pr Appareil d'inhalation
US1821996A (en) * 1927-06-10 1931-09-08 Willson Products Inc Respirator
GB440584A (en) * 1933-12-02 1936-01-02 Armand Poelman Improvements relating to air filters particularly for use in connection with gas masks and poison-gas shelters
FR802235A (fr) * 1935-05-17 1936-08-31 Bloc porte-soupapes pour masques à gaz
FR808831A (fr) * 1935-11-08 1937-02-16 Perfectionnements aux dispositifs de filtration anti-arsines et à leur montage sur les appareils respiratoires
FR798388A (fr) * 1935-11-28 1936-05-15 Perfectionnement aux cartouches filtrantes pour masques à gaz
FR817037A (fr) * 1936-04-06 1937-08-24 Perfectionnements aux appareils épurateurs d'air vicié
DE913261C (de) * 1943-02-26 1954-06-10 Draegerwerk Ag Vorrichtung zum Befestigen von Zubehoerteilen fuer den Atemschutz an dem Gewindeanschlussstueck von Gasschutzmasken
US2744523A (en) * 1954-05-19 1956-05-08 Chicago Eye Shield Company Fume and mist respirator with ring means for removably mounting the filters
DE960695C (de) * 1955-04-24 1957-03-28 Auergesellschaft Ag Atemschutzmaske mit auswechselbarem Filter
DE1759460A1 (de) * 1968-05-03 1971-07-08 Medizin Labortechnik Veb K Atemschutzfilter mit koerniger Filtermasse
DE2100661A1 (de) * 1971-01-08 1972-07-20 Drägerwerk AG, 2400 Lübeck Atemschutzmaske mit Steckfilter
US4419110A (en) * 1981-08-20 1983-12-06 Figgie International Inc. Gas filter container
US4787925A (en) * 1983-04-15 1988-11-29 Figgie International Inc. Gas filter canister housing assembly
JPS60116350U (ja) * 1984-01-17 1985-08-06 株式会社　重松製作所 防じんマスクのろ過室

Also Published As

Publication number Publication date
FI871562A0 (fi) 1987-04-09
FI871562L (fi) 1987-12-11
JPH0716523B2 (ja) 1995-03-01
EP0249124A2 (de) 1987-12-16
NO170571C (no) 1992-11-04
BR8702913A (pt) 1988-03-08
NO871164L (no) 1987-12-11
DE3619479A1 (de) 1987-12-17
NO170571B (no) 1992-07-27
FI84559C (fi) 1991-12-27
DE3619479C2 (enrdf_load_stackoverflow) 1991-04-18
US4832018A (en) 1989-05-23
DE3774183D1 (de) 1991-12-05
EP0249124A3 (en) 1989-08-23
NO871164D0 (no) 1987-03-20
FI84559B (fi) 1991-09-13
ES2027995T3 (es) 1992-07-01
JPS6354177A (ja) 1988-03-08

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