FI863608A - VENTILANORDNING FOER EN MED UTBYTBART FILTER FOERSEDD RESPIRATOR. - Google Patents

VENTILANORDNING FOER EN MED UTBYTBART FILTER FOERSEDD RESPIRATOR. Download PDF

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Publication number
FI863608A
FI863608A FI863608A FI863608A FI863608A FI 863608 A FI863608 A FI 863608A FI 863608 A FI863608 A FI 863608A FI 863608 A FI863608 A FI 863608A FI 863608 A FI863608 A FI 863608A
Authority
FI
Finland
Prior art keywords
filter
valve
inhalation
concentric
breathing mask
Prior art date
Application number
FI863608A
Other languages
Finnish (fi)
Other versions
FI84560B (en
FI84560C (en
FI863608A0 (en
Inventor
Edward N Montesi
Original Assignee
Siebe North Inc
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 Siebe North Inc filed Critical Siebe North Inc
Priority to FI863608A priority Critical patent/FI84560C/en
Publication of FI863608A0 publication Critical patent/FI863608A0/en
Publication of FI863608A publication Critical patent/FI863608A/en
Publication of FI84560B publication Critical patent/FI84560B/en
Application granted granted Critical
Publication of FI84560C publication Critical patent/FI84560C/en

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  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

The invention concerns a breathing mask with dust protector. The breathing mask includes a face piece 12 made of a rubber-like material, inhalation and exhalation valves 34, 26 connected to the face piece, and a filter cartridge 44 through which air can be inhaled into the face piece. To reduce the weight of the breathing mask and to improve the operating characteristics of the filter, the inhalation and exhalation valves have been combined with each other to form an undivided unit and have been placed in a concentric series with the annular inhalation valve 34 placed radially outside and concentric to the exhalation valve 26. The inhalation valve communicates with an essentially laminar filter unit which is supported by the valve part and extends laterally from the axis of the concentric valve series. <IMAGE>
FI863608A 1986-09-08 1986-09-08 VENTILDEL TILL EN MED UTBYTBART FILTER FOERSEDD GASMASK. FI84560C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI863608A FI84560C (en) 1986-09-08 1986-09-08 VENTILDEL TILL EN MED UTBYTBART FILTER FOERSEDD GASMASK.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI863608 1986-09-08
FI863608A FI84560C (en) 1986-09-08 1986-09-08 VENTILDEL TILL EN MED UTBYTBART FILTER FOERSEDD GASMASK.

Publications (4)

Publication Number Publication Date
FI863608A0 FI863608A0 (en) 1986-09-08
FI863608A true FI863608A (en) 1988-03-09
FI84560B FI84560B (en) 1991-09-13
FI84560C FI84560C (en) 1991-12-27

Family

ID=8523121

Family Applications (1)

Application Number Title Priority Date Filing Date
FI863608A FI84560C (en) 1986-09-08 1986-09-08 VENTILDEL TILL EN MED UTBYTBART FILTER FOERSEDD GASMASK.

Country Status (1)

Country Link
FI (1) FI84560C (en)

Also Published As

Publication number Publication date
FI84560B (en) 1991-09-13
FI84560C (en) 1991-12-27
FI863608A0 (en) 1986-09-08

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Legal Events

Date Code Title Description
MM Patent lapsed
MM Patent lapsed

Owner name: SIEBE NORTH, INC.