SE9300466L - protective mask - Google Patents

protective mask

Info

Publication number
SE9300466L
SE9300466L SE9300466A SE9300466A SE9300466L SE 9300466 L SE9300466 L SE 9300466L SE 9300466 A SE9300466 A SE 9300466A SE 9300466 A SE9300466 A SE 9300466A SE 9300466 L SE9300466 L SE 9300466L
Authority
SE
Sweden
Prior art keywords
shield
thinner part
membrane
ring
supporting member
Prior art date
Application number
SE9300466A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE505744C2 (en
SE9300466D0 (en
Inventor
Jyrki Jaervinen
Original Assignee
Kemira Oy
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 Oy filed Critical Kemira Oy
Publication of SE9300466D0 publication Critical patent/SE9300466D0/en
Publication of SE9300466L publication Critical patent/SE9300466L/en
Publication of SE505744C2 publication Critical patent/SE505744C2/en

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)

Abstract

The invention relates to a protective mask provided with a membrane (3) through which the user's speech is heard outside the mask and which is covered by a perforated shield (4) external to the membrane. The invention is characterized in that the membrane is formed by a thinner part (3) which is formed into the jacket (2) of the mask made of rubber or similar elastic material, and whose edges are supported on a rigid supporting member (6). The supporting member can be formed by an abutment ring (6), where the shield (4) covering the thinner part is secured using a snap-fastener. Alternatively, the shield (4) can serve as a supporting member so that the abutment ring can be omitted. The supporting ring can be fitted to the groove surrounding the thinner part and dimensioned so that it serves as a tightener which stresses the thinner part. Ring 6 and shield 4 may be made of rigid plastics or metal. <IMAGE>
SE9300466A 1992-03-02 1993-02-12 Protective mask with a speech penetration formed by a thin portion of the wall SE505744C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI920939A FI96171C (en) 1992-03-02 1992-03-02 protective mask

Publications (3)

Publication Number Publication Date
SE9300466D0 SE9300466D0 (en) 1993-02-12
SE9300466L true SE9300466L (en) 1993-09-03
SE505744C2 SE505744C2 (en) 1997-10-06

Family

ID=8534854

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9300466A SE505744C2 (en) 1992-03-02 1993-02-12 Protective mask with a speech penetration formed by a thin portion of the wall

Country Status (4)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19845572C2 (en) * 1998-10-02 2002-06-06 Draeger Safety Ag & Co Kgaa Speech transmitter for a respirator
US11273334B2 (en) 2015-10-22 2022-03-15 Scott Technologies, Inc. Respirator mask with voice transmittal feature
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

Also Published As

Publication number Publication date
FI96171B (en) 1996-02-15
FI920939A (en) 1993-09-03
SE505744C2 (en) 1997-10-06
SE9300466D0 (en) 1993-02-12
DE4305869A1 (en) 1993-09-09
FI920939A0 (en) 1992-03-02
GB2264648A (en) 1993-09-08
FI96171C (en) 1996-05-27
GB2264648B (en) 1996-01-03
GB9303179D0 (en) 1993-03-31

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Legal Events

Date Code Title Description
NUG Patent has lapsed