EP0469498A3 - Particle filtering halfmask - Google Patents

Particle filtering halfmask Download PDF

Info

Publication number
EP0469498A3
EP0469498A3 EP19910112681 EP91112681A EP0469498A3 EP 0469498 A3 EP0469498 A3 EP 0469498A3 EP 19910112681 EP19910112681 EP 19910112681 EP 91112681 A EP91112681 A EP 91112681A EP 0469498 A3 EP0469498 A3 EP 0469498A3
Authority
EP
European Patent Office
Prior art keywords
halfmask
particle filtering
filtering
particle
filtering halfmask
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.)
Withdrawn
Application number
EP19910112681
Other languages
German (de)
Other versions
EP0469498A2 (en
Inventor
Hubert Bullach
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.)
Honeywell Safety Products Sweden AB
Original Assignee
Bilsom AB
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 Bilsom AB filed Critical Bilsom AB
Publication of EP0469498A2 publication Critical patent/EP0469498A2/en
Publication of EP0469498A3 publication Critical patent/EP0469498A3/en
Withdrawn legal-status Critical Current

Links

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
    • A62B23/025—Filters for breathing-protection purposes for respirators the filter having substantially the shape of a mask
EP19910112681 1990-07-28 1991-07-27 Particle filtering halfmask Withdrawn EP0469498A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9011154U 1990-07-28
DE9011154U DE9011154U1 (en) 1990-07-28 1990-07-28

Publications (2)

Publication Number Publication Date
EP0469498A2 EP0469498A2 (en) 1992-02-05
EP0469498A3 true EP0469498A3 (en) 1992-04-22

Family

ID=6856030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910112681 Withdrawn EP0469498A3 (en) 1990-07-28 1991-07-27 Particle filtering halfmask

Country Status (2)

Country Link
EP (1) EP0469498A3 (en)
DE (1) DE9011154U1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5753343A (en) * 1992-08-04 1998-05-19 Minnesota Mining And Manufacturing Company Corrugated nonwoven webs of polymeric microfiber
GB9723740D0 (en) * 1997-11-11 1998-01-07 Minnesota Mining & Mfg Respiratory masks incorporating valves or other attached components
JP4927262B2 (en) * 2001-03-23 2012-05-09 株式会社重松製作所 Filter medium and disposable dust mask using the filter medium
KR200292141Y1 (en) 2002-05-28 2002-10-14 이부경 A health mask
WO2015066967A1 (en) * 2013-11-07 2015-05-14 林净植 Filtration structure
CN108652106A (en) * 2017-03-29 2018-10-16 姜嘉怡 It is folded over the mask of filtering layer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB442725A (en) * 1934-07-10 1936-02-10 John Ambrose Sadd Major Improvements in respirators
US2201315A (en) * 1936-11-13 1940-05-21 American Optical Corp Respirator
US3049121A (en) * 1959-01-20 1962-08-14 Richard S Brumfield Oronasal mask
WO1981001019A1 (en) * 1979-10-09 1981-04-16 L Giffard Respiratory mask and filtering material included therein
GB2059782A (en) * 1979-09-25 1981-04-29 Draegerwerk Ag A breathing half-mask for once only use

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB442725A (en) * 1934-07-10 1936-02-10 John Ambrose Sadd Major Improvements in respirators
US2201315A (en) * 1936-11-13 1940-05-21 American Optical Corp Respirator
US3049121A (en) * 1959-01-20 1962-08-14 Richard S Brumfield Oronasal mask
GB2059782A (en) * 1979-09-25 1981-04-29 Draegerwerk Ag A breathing half-mask for once only use
WO1981001019A1 (en) * 1979-10-09 1981-04-16 L Giffard Respiratory mask and filtering material included therein

Also Published As

Publication number Publication date
EP0469498A2 (en) 1992-02-05
DE9011154U1 (en) 1990-10-31

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