EP 0234277 A2 19870902 - Filter coupling unit for a breathing protection mask.
Title (en)
Filter coupling unit for a breathing protection mask.
Title (de)
Verbindungsvorrichtung zwischen Maske und Atemfilter.
Title (fr)
Dispositif de raccord d'un filtre a un masque respiratoire.
Publication
Application
Priority
DK 33386 A 19860122
Abstract (en)
In a respiratory protective mask (1) with releasably mounted filters (3 and 4), at least the coupler (5) between two filters (3 and 4) is constructed as a sort of bayonet coupler with radially outwardly protruding lock protrusions (27) and lock pockets (12) protruding radially inwardly from an axial flange (11), one filter (4) being formed with two axially protruding sealing beads (17,18) which cooperate with a sealing bead (26) protruding radially outwardly from the other filter (3). When inserting the lock protrusions (27), they are guided by the inner side of the axial flange (11), so that the sealing bead (26) hits the space between the sealing beads (17 and 18).
IPC 1-7
IPC 8 full level
A62B 9/04 (2006.01)
CPC (source: EP)
A62B 9/04 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0234277 A2 19870902; EP 0234277 A3 19890322; AU 6799887 A 19870723; DK 33386 A 19870723; DK 33386 D0 19860122; NZ 219034 A 19880929
DOCDB simple family (application)
EP 87100818 A 19870121; AU 6799887 A 19870121; DK 33386 A 19860122; NZ 21903487 A 19870122