DE4305869A1 - - Google Patents

Info

Publication number
DE4305869A1
DE4305869A1 DE4305869A DE4305869A DE4305869A1 DE 4305869 A1 DE4305869 A1 DE 4305869A1 DE 4305869 A DE4305869 A DE 4305869A DE 4305869 A DE4305869 A DE 4305869A DE 4305869 A1 DE4305869 A1 DE 4305869A1
Authority
DE
Germany
Prior art keywords
reduction
mask
membrane
protection
protective
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Withdrawn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
DE4305869A
Other languages
German (de)
English (en)
Inventor
Jyrki Jaervinen
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.)
Kemira Oyj
Original Assignee
Kemira Oyj
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 Kemira Oyj filed Critical Kemira Oyj
Publication of DE4305869A1 publication Critical patent/DE4305869A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
DE4305869A 1992-03-02 1993-02-25 Withdrawn DE4305869A1 (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI920939A FI96171C (fi) 1992-03-02 1992-03-02 Suojanaamari

Publications (1)

Publication Number Publication Date
DE4305869A1 true DE4305869A1 (fi) 1993-09-09

Family

ID=8534854

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4305869A Withdrawn DE4305869A1 (fi) 1992-03-02 1993-02-25

Country Status (4)

Country Link
DE (1) DE4305869A1 (fi)
FI (1) FI96171C (fi)
GB (1) GB2264648B (fi)
SE (1) SE505744C2 (fi)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108367182A (zh) * 2015-10-22 2018-08-03 斯科特科技公司 带有语音传输特征部的呼吸器面罩

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19845572C2 (de) * 1998-10-02 2002-06-06 Draeger Safety Ag & Co Kgaa Sprechübertrager für eine Atemschutzmaske
GB201808993D0 (en) * 2018-06-01 2018-07-18 Avon Polymer Prod Ltd Speech diaphram module for a respirator mask

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB549518A (en) * 1941-05-02 1942-11-25 Standard Telephones Cables Ltd Improvements in or relating to microphones

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108367182A (zh) * 2015-10-22 2018-08-03 斯科特科技公司 带有语音传输特征部的呼吸器面罩
JP2021164659A (ja) * 2015-10-22 2021-10-14 スコット テクノロジーズ インコーポレイテッドScott Technologies, Inc. 音声伝達機能を備えた呼吸用マスク

Also Published As

Publication number Publication date
FI920939A (fi) 1993-09-03
SE505744C2 (sv) 1997-10-06
SE9300466L (sv) 1993-09-03
SE9300466D0 (sv) 1993-02-12
GB2264648B (en) 1996-01-03
GB2264648A (en) 1993-09-08
FI920939A0 (fi) 1992-03-02
FI96171C (fi) 1996-05-27
GB9303179D0 (en) 1993-03-31
FI96171B (fi) 1996-02-15

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8139 Disposal/non-payment of the annual fee