WO1983002726A1 - Demi-masque respiratoire filtrant - Google Patents

Demi-masque respiratoire filtrant Download PDF

Info

Publication number
WO1983002726A1
WO1983002726A1 PCT/DE1983/000021 DE8300021W WO8302726A1 WO 1983002726 A1 WO1983002726 A1 WO 1983002726A1 DE 8300021 W DE8300021 W DE 8300021W WO 8302726 A1 WO8302726 A1 WO 8302726A1
Authority
WO
WIPO (PCT)
Prior art keywords
mask
mask body
respiratory half
nose
filtering
Prior art date
Application number
PCT/DE1983/000021
Other languages
German (de)
English (en)
Inventor
AKTIENGESELLSCHAFT DRäGERWERK
Original Assignee
Van Der Smissen, Carl-Ernst
Heckmann, Johannes
Walther, Hans-Joachim
Schlobohm, Joachim
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 Van Der Smissen, Carl-Ernst, Heckmann, Johannes, Walther, Hans-Joachim, Schlobohm, Joachim filed Critical Van Der Smissen, Carl-Ernst
Publication of WO1983002726A1 publication Critical patent/WO1983002726A1/fr
Priority to FI833173A priority Critical patent/FI833173A/fi
Priority to DK4610/83A priority patent/DK461083D0/da

Links

Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
    • A41D13/1138—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration
    • A41D13/1146—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration obtained by moulding

Definitions

  • the invention relates to a "filtering respiratory half mask", according to the preamble of claim 1.
  • Frtering respiratory half-masks fulfill their protective task in commercial use in preventing the penetration of harmful substances into the respiratory organs of the wearer and in medical use, conversely, the passage of germs from the breathing air of medical personnel to the detriment of the patient. They have to be provided economically. This requires a simple design and the possibility of machine production.
  • a known single-use breathing mask a "filtering breathing half mask” in the sense of the present invention, has a cup-shaped mask body made of a multilayer. Dust and mist filtering material.
  • the mask body is shaped in such a way that there is a tight fit over the nose, cheeks and chin of the user.
  • the edges of the layers of the filter material are designed to seal with one another as an edge of the mask body. Headbands are attached to the edge, which has protrusions.
  • a hot-melt adhesive is used to apply an angular and protruding shape over the uppermost nose part of the mask body. preferably made of metal nose piece attached. The nose piece is pressed on after the mask is put on and is intended to hold the mask over the nose.
  • the material of the mask body consists of three layers:
  • the inner layer facing the face consists of interconnected plastic fibers.
  • the outer layer facing away from the face consists of an intimate network of plastic fibers in a binder. In between is a medium loose filter layer of loosely mixed fibers. In the original state, these layers form a flat, sheet-like material.
  • To produce the cup-shaped mask body it is pressed into the mask shape in a heated mold containing a corresponding cavity by means of a stamp. This creates the edge to which the headbands are attached after trimming. Apart from the complicated and expensive structure of the three-layer material, this is changed by the deep-drawing process in the manufacture of the mask body in an uneven and hardly manageable manner.
  • the object of the invention is a "filtering respiratory half mask" which is simple in construction, remains dimensionally stable even after prolonged use, is largely insensitive to external mechanical influences and can be provided economically.
  • the sensitive fibers of the filter medium are no longer shifted against each other and thereby stressed.
  • the outer support layer made of the coarse-mesh plastic fabric ensures a necessary one
  • the mask body 1 has the known shape of the normal half masks. The result is a comfortable, tight fit over the nose, cheeks and chin of the wearer. There is sufficient free space inside that ensures undisturbed breathing.
  • the mask body 1, as the filtering part, consists of an inner homogeneous, solid and resistant filter part 2 made of a mixture of plastic and micro glass fibers.
  • the filter part 2 is covered by an outer support layer 3 of the same configuration.
  • the filter part 2 and the support layer 3 are connected to one another at the edge 4, thereby simultaneously forming a sealing edge, by welding or gluing.
  • the preformed support layer 3 consists of a coarse-mesh fabric made of synthetic fibers with a mesh size of approximately 1.0 mm.
  • a further connection of the filter part 2 to the outer support layer 3 takes place via welding or adhesive spots 5 in the depth of the mask body 1.
  • a nose clip 6 also secures the seal at this point by pressing on the nose.
  • a head strap 8 is held on the mask body 1 by means of eyelets 7.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Gyroscopes (AREA)
  • Fats And Perfumes (AREA)

Abstract

Demi-masque respiratoire filtrant comportant un élément masque (1) avec une partie filtre intérieure (2) en plastique et microfibres de verre et une partie extérieure de support (3) en un tissu de fibres synthétiques à grandes mailles de configuration semblable. Les deux couches sont reliées l'une à l'autre par soudage ou par collage, formant ainsi une bordure d'étanchéité (4). Elles sont en outre reliées par d'autres points de soudage ou de collage (5) au fond de l'élément masque. Une pince (6) sur le nez assure l'étanchéité par pression autour du nez. Un ruban serre-tête (8) est fixé à l'élément masque par des boucles (7).
PCT/DE1983/000021 1982-02-09 1983-02-05 Demi-masque respiratoire filtrant WO1983002726A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI833173A FI833173A (fi) 1982-02-09 1983-09-06 Filtrerande andninshalvmask
DK4610/83A DK461083D0 (da) 1982-02-09 1983-10-06 Filtrerende andedrsaetshalvmaske

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3204322.8820209 1982-02-09
DE19823204322 DE3204322A1 (de) 1982-02-09 1982-02-09 Filtrierende atemhalbmaske

Publications (1)

Publication Number Publication Date
WO1983002726A1 true WO1983002726A1 (fr) 1983-08-18

Family

ID=6155118

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1983/000021 WO1983002726A1 (fr) 1982-02-09 1983-02-05 Demi-masque respiratoire filtrant

Country Status (6)

Country Link
EP (1) EP0099915A1 (fr)
DE (1) DE3204322A1 (fr)
DK (1) DK461083D0 (fr)
FI (1) FI833173A (fr)
NO (1) NO833119L (fr)
WO (1) WO1983002726A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4974586A (en) * 1986-11-06 1990-12-04 Moldex/Metric Products, Inc. Breathing mask
CN104839910A (zh) * 2015-05-21 2015-08-19 马振原 单点焊接式口罩

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003245243A1 (en) 2002-06-05 2003-12-22 Louis M. Gerson Co., Inc. Face mask and method of manufacturing the same
US7677248B2 (en) 2002-06-05 2010-03-16 Louis M. Gerson Co., Inc. Stiffened filter mask
DE102020134675A1 (de) 2020-12-22 2022-06-23 HMT Hygiene- Medizin- & Krankenhaus-Technik GmbH Schutzmaske
DE102020134616B4 (de) 2020-12-22 2023-08-03 HMT Hygiene- Medizin- & Krankenhaus-Technik GmbH Schutzmaske
DE102020134665B4 (de) 2020-12-22 2024-04-25 HMT Hygiene- Medizin- & Krankenhaus-Technik GmbH Schutzmaske

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3695265A (en) * 1970-10-26 1972-10-03 Elmer Lawrence Brevik Face mask
FR2256747A1 (en) * 1974-01-08 1975-08-01 Johnson & Johnson Surgical facial masks prodn. - from thermoplastic filaments aligned perpendicular to direction of air flow
FR2350852A1 (fr) * 1976-05-11 1977-12-09 American Optical Corp Masque respiratoire a usage unique, methode et appareil pour sa fabrication

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1112408B (de) * 1958-01-02 1961-08-03 Draegerwerk Ag Halbmaskenfoermig ausgebildetes Staubfilter
SE7601232L (sv) * 1976-02-05 1977-08-06 Reboprodukter Goran Segersten Ansiktsmask med utbytbart filter
FR2430774A1 (fr) * 1978-07-13 1980-02-08 Giffard L Masque respiratoire
FR2433952A1 (fr) * 1978-08-22 1980-03-21 Seplast Sa Masque filtrant a double paroi
GB2077112B (en) * 1980-06-09 1985-03-13 Metric Prod Inc Face mask
US4319567A (en) * 1980-07-07 1982-03-16 Moldex/Metric Products, Inc. Disposable face mask

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3695265A (en) * 1970-10-26 1972-10-03 Elmer Lawrence Brevik Face mask
FR2256747A1 (en) * 1974-01-08 1975-08-01 Johnson & Johnson Surgical facial masks prodn. - from thermoplastic filaments aligned perpendicular to direction of air flow
FR2350852A1 (fr) * 1976-05-11 1977-12-09 American Optical Corp Masque respiratoire a usage unique, methode et appareil pour sa fabrication

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4974586A (en) * 1986-11-06 1990-12-04 Moldex/Metric Products, Inc. Breathing mask
CN104839910A (zh) * 2015-05-21 2015-08-19 马振原 单点焊接式口罩

Also Published As

Publication number Publication date
FI833173A0 (fi) 1983-09-06
DK461083A (da) 1983-10-06
DE3204322A1 (de) 1983-08-11
EP0099915A1 (fr) 1984-02-08
NO833119L (no) 1983-08-30
FI833173A (fi) 1983-09-06
DK461083D0 (da) 1983-10-06

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