WO1991018647A1 - Respirator - Google Patents

Respirator Download PDF

Info

Publication number
WO1991018647A1
WO1991018647A1 PCT/FI1991/000175 FI9100175W WO9118647A1 WO 1991018647 A1 WO1991018647 A1 WO 1991018647A1 FI 9100175 W FI9100175 W FI 9100175W WO 9118647 A1 WO9118647 A1 WO 9118647A1
Authority
WO
WIPO (PCT)
Prior art keywords
respirator
filter
adapter
laterally flush
cylinder
Prior art date
Application number
PCT/FI1991/000175
Other languages
French (fr)
Inventor
Hannu Inkinen
Original Assignee
Air-Ace 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
Priority claimed from FI902777A external-priority patent/FI87315C/en
Application filed by Air-Ace Oy filed Critical Air-Ace Oy
Publication of WO1991018647A1 publication Critical patent/WO1991018647A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/04—Couplings; Supporting frames
    • 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
    • A62B18/02—Masks
    • A62B18/025—Halfmasks

Definitions

  • the object of this invention is a combination of a protecti ⁇ ve respirator and a conventional gas mask such that both 5 light and cheap laterally flush protective respirator fil ⁇ ters as well as filters enclosed in metal or plastic cart ⁇ ridges, and intended to filter special gases, can be used in the said combination.
  • respirators involve the use of cartridge fil ⁇ ters.
  • protective respirators in accordance with Fl patent application No. 900375, only the filters which are laterally flush and concave can be used.
  • the EP-application No. 258508 describes a respirator, too.
  • the respirator includes a
  • cartridge type filters that are larger in area than the cartridge type filter.
  • the advantage of the cartridge type filters is that they provide respira ⁇ tory protection, for a specified time, even against chlorine gas, styrene gas and gases emitted during nuclear power
  • T The purpose is to fabricate the respirator to enable the filter encompassing the filter to be replaced by a cartridge that is fastened to the body by means of threading or a snap-on fastening or the like.
  • Figure 1 represents a schematic section picture of one advantageous form of implementing the invention.
  • the respirator is indicated by 1
  • the body part by 12 the supporting ribs are located on said body part, on which ribs the filter can be placed.
  • the filter cloth overlying the body part is indicated by 3.
  • Either a permanently fastened or removable adapter is moun ⁇ ted at the point where the inhalation valve is located.
  • a filter cartridge can be easily mounted to the said adapter.
  • the adapter can be constructed into a rib structure, cylin ⁇ drical in shape 2. Additionally, the inside of the cylinder 2 can be provided with transverse brackets or these can be omitted.
  • the sheath of the cylinder can be provided with notches or its perimeters can be threaded to facilitate the mounting of the adapter.
  • the said thread or snap-on fas ⁇ tening solutions are merely some examples and in no way do they impose limitations on the invention.
  • the said cylindrical adapter acts as a support for the laterally flush type filter.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

The object of this invention is a combination of a filter bridge type protective device and a conventional gas mask that enables the use of both light and advantageous laterally flush filters used in protective respirators and filter cartridges enclosed in metal or plastic casings protecting the user from special gases. The invention is characterized by the fact that the respirator's ribbing has been formed into a cylinder (2) providing support for the laterally flush type filter (3) when using such a filter (3) and which also acts as an adapter for filter cartridges when using a filter cartridge.

Description

a.
RESPIRATOR
The object of this invention is a combination of a protecti¬ ve respirator and a conventional gas mask such that both 5 light and cheap laterally flush protective respirator fil¬ ters as well as filters enclosed in metal or plastic cart¬ ridges, and intended to filter special gases, can be used in the said combination.
10 Conventional respirators involve the use of cartridge fil¬ ters. In protective respirators in accordance with Fl patent application No. 900375, only the filters which are laterally flush and concave can be used. The EP-application No. 258508 describes a respirator, too. The respirator includes a
15 central exhalation valve and a concentric inhalation valve. Therefore the filter have to have a circular opening for air to come out from the respirator. The application does not teach the combination of a respirator having a laterally flush filter and a conventional mask having filter cartrid-
20 ge. The Fl publication pr.int No. 69757, which is quite similar with the respirators of above EP application and Fl application, does not either teach our invention, as it describes, how to provide, e.g. a large filtering area, but does not mention the multipurpose respirator according to
25 the invention.
The purpose now is to make the above mentioned laterally flush protective respirator into a multi-purpose respirator enabling the use of both cartridge type filters in the event
30 of an emergency and laterally flush type filters that are larger in area than the cartridge type filter. The advantage of the cartridge type filters is that they provide respira¬ tory protection, for a specified time, even against chlorine gas, styrene gas and gases emitted during nuclear power
35 station accidents.
The above is achieved mainly by means of the solution pre¬ sented in the characterization part of claim 1.
T The purpose is to fabricate the respirator to enable the filter encompassing the filter to be replaced by a cartridge that is fastened to the body by means of threading or a snap-on fastening or the like.
As means of describing the invention, we enclose the follo¬ wing diagrams in which:
Figure 1 represents a schematic section picture of one advantageous form of implementing the invention.
We shall proceed to describe the invention by referring to figure 1. In figure 1, the respirator is indicated by 1, the body part by 12, the supporting ribs are located on said body part, on which ribs the filter can be placed. The filter cloth overlying the body part is indicated by 3. Either a permanently fastened or removable adapter is moun¬ ted at the point where the inhalation valve is located. A filter cartridge can be easily mounted to the said adapter. The adapter can be constructed into a rib structure, cylin¬ drical in shape 2. Additionally, the inside of the cylinder 2 can be provided with transverse brackets or these can be omitted. The sheath of the cylinder can be provided with notches or its perimeters can be threaded to facilitate the mounting of the adapter. The said thread or snap-on fas¬ tening solutions are merely some examples and in no way do they impose limitations on the invention. When using a late¬ rally flush type filter, the said cylindrical adapter acts as a support for the laterally flush type filter.
We have, in the above, described the invention by referring to only one of its advantageous implementation examples. All modifications of the inventive idea within the scope defined in the patent claims are, naturally, possible.

Claims

1. A respirator (1) containing inhalation and exhalation valves (6, 4), and which is provided with supporting ribbing for the filter (3) arranged in line with the outer surface of the respirator, characterized in that there in the same protective respirator is possible to use either laterally flush type filters or filter cartridges.
2. A respirator as claimed in claim 1, characterized in that the cylinder (2), formed of the protective respirator's rib¬ bing and acting as an adapter, is intended for cartridge type gas filters and to provide support for the laterally flush type filter when using the laterally flush type fil- ter.
3. A respirator as claimed in claims 1 or 2, characterized in that the cylinder (2) , formed of ribbing and acting as an adapter, is inserted into the cylinder (2) in front of the inhalation valve (6).
4. A respirator as claimed in claims 1 - 3, characterized in that the adapter is contiguous with the body or a separate part.
PCT/FI1991/000175 1990-06-04 1991-06-04 Respirator WO1991018647A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI902777A FI87315C (en) 1990-01-24 1990-06-04 ANDNINGSSKYDD
FI902777 1990-06-04

Publications (1)

Publication Number Publication Date
WO1991018647A1 true WO1991018647A1 (en) 1991-12-12

Family

ID=8530561

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1991/000175 WO1991018647A1 (en) 1990-06-04 1991-06-04 Respirator

Country Status (4)

Country Link
EP (1) EP0532574A1 (en)
JP (1) JPH05509243A (en)
AU (1) AU7964991A (en)
WO (1) WO1991018647A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992019322A1 (en) * 1991-05-02 1992-11-12 Air-Ace Oy Protective respirator's air guidance system and protective respirator

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1784694A1 (en) * 1968-09-07 1971-11-18 Draegerwerk Ag Respirator
GB1272576A (en) * 1968-04-17 1972-05-03 Chapman & Smith Ltd Improvements in or relating to face masks
FI52929B (en) * 1971-01-08 1977-09-30 Draegerverk Ag
EP0090083A2 (en) * 1982-03-31 1983-10-05 Drägerwerk Aktiengesellschaft Quick acting connection of an appliance to breathing masks
WO1986006643A1 (en) * 1985-05-04 1986-11-20 Protector Safety Limited Respirators
US4886058A (en) * 1988-05-17 1989-12-12 Minnesota Mining And Manufacturing Company Filter element
EP0420812A1 (en) * 1989-09-29 1991-04-03 Micronel AG Portable breathing protection apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1272576A (en) * 1968-04-17 1972-05-03 Chapman & Smith Ltd Improvements in or relating to face masks
DE1784694A1 (en) * 1968-09-07 1971-11-18 Draegerwerk Ag Respirator
FI52929B (en) * 1971-01-08 1977-09-30 Draegerverk Ag
EP0090083A2 (en) * 1982-03-31 1983-10-05 Drägerwerk Aktiengesellschaft Quick acting connection of an appliance to breathing masks
WO1986006643A1 (en) * 1985-05-04 1986-11-20 Protector Safety Limited Respirators
US4886058A (en) * 1988-05-17 1989-12-12 Minnesota Mining And Manufacturing Company Filter element
EP0420812A1 (en) * 1989-09-29 1991-04-03 Micronel AG Portable breathing protection apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992019322A1 (en) * 1991-05-02 1992-11-12 Air-Ace Oy Protective respirator's air guidance system and protective respirator

Also Published As

Publication number Publication date
JPH05509243A (en) 1993-12-22
AU7964991A (en) 1991-12-31
EP0532574A1 (en) 1993-03-24

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