RESPIRATOR WITH INNER FOLD IN CLOSELY FITTING NASAL AREA Russian patent published in 2016 - IPC A62B18/02 A62B9/06 

Abstract RU 2586045 C2

FIELD: individual protective means.

SUBSTANCE: face-piece fold-flat respirator comprising a mask body and a harness. Mask body comprises the filtering structure including two cover webs and the filtration layer comprising electrically charged microfibers. Filtering structure is folded back upon itself to form a fold in the mask nasal area, so that the fold width is at least 1 cm or more, and it runs over the mask body upper perimeter, generally straight, when the respirator is folded. Filtering structure has a buckle more than 0.5 mm and restorability rate at lease 40 % when folded. Advantage of is mask design is that it is no need to use a nose element of a foamed material to achieve a close fit of the respirator over the wearer's nose.

EFFECT: respirator with inner fold in closely fitting nasal area.

15 cl, 6 dwg, 3 tbl, 2 ex

Similar patents RU2586045C2

Title Year Author Number
HORIZONTALLY FLAT-FOLD FILTER FACE RESPIRATORY MASK WITH INDICING SYMMETRY COMPONENT 2010
  • Daffi Din Roj
RU2443442C1
FLAT FOLD FILTER FACE RESPIRATORY MASK WHEREIN WELDED JOINT STRUCTURE IS CONSTRUCTIONAL ELEMENT 2010
  • Daffi Din Roj
  • Spu Skott Allen
  • Nguen Nkhat Kha Ti
RU2436608C1
FILTRATION RESPIRATORY FACE MASK WITH BASE COMPRISING PARALLEL WELD LINE STRUCTURE 2010
  • Daffi Din Roj
RU2446845C1
FILTER FACE RESPIRATORY MASK WITH SHAPE-GENERATING FOAMING LAYER 2010
  • Choj Dong-Il
  • Kim Chzhu-Jun
  • Li Chzhin-Kho
  • Li Sejung-Chzhu
RU2474445C2
FILTER FACE RESPIRATORY MASK WITH REPLACEABLE COMPONENT 2013
  • Kumar Niraj
  • Kuppuswami Thiyagarajan
  • Saungikar Abhijeet A.
RU2600907C2
FILTERING FACE RESPIRATORY MASK WITH GROOVE IN NOSE AREA 2014
  • Duffy Dean R.
RU2639071C2
RESPIRATOR WITH DYNAMIC SUPPORT STRUCTURE AND FOLDEE FILTER INSERT 2008
  • Gebrjuold Ionas
  • Skulli Tomas Dzh.
  • Dzhonson Ehrik Dzh.
  • Martin Filip Dzh.
  • Khenderson Kristofer P.
  • Lovo Franchesko
  • Mattano Dan
  • Ponzio Klaudio
RU2428233C1
FILTERING RESPIRATORY FACE MASK WITH FRAME, WHICH IS SUPPORT FOR BREATHING VALVE 2008
  • Martin Filip Dzh.
  • Khenderson Kristofer P.
RU2433845C1
FILTRATION RESPIRATORY EXTENSIBLE-BASE FACE MASK 2008
  • Martin Filip Dzh.
  • Gebrjuold Ionas
  • Stefan Dehniehl Dzh.
  • Uilson Audra A.
  • Khenderson Kristofer P.
  • Skulli Tomas Dzh.
  • Dzhonson Ehrik Dzh.
  • Lovo Franchesko
  • Mattano Dan
  • Ponzio Klaudio
RU2424018C1
FILTERING RESPIRATORY FACE MASK, WHICH CONTAINS "LIVE" HINGES 2008
  • Gebrjuold Ionas
  • Skulli Tomas Dzh.
  • Dzhonson Ehrik Dzh.
  • Bikhajmer Lans E.
  • Daugaard Duajn D.
  • Stefan Dehniehl Dzh.
  • Martin Filip Dzh.
RU2415687C1

RU 2 586 045 C2

Authors

Eitzman Philip D.

Duffy Dean R.

Dates

2016-06-10Published

2011-06-14Filed