A - Human Necessities – 62 – B
Patent
A - Human Necessities
62
B
A62B 23/02 (2006.01) B01D 46/52 (2006.01)
Patent
CA 2144000
A protective-respirator filter (1) with a canister-shaped filter housing (2) and a flange (7) at the edge of the filter housing, with a flow channel (3) that passes through the filter housing, with a sealing surface (6), and with a housing cover (5) that closes off the filter housing, and a filter element (4) that is located within the filter housing, is to be optimized from the standpoint of simple manufacture. In order to solve this problem provision is made such that when the housing cover (5) is parallel to the filter housing (2) there is a space (a) between the sealing surface (6) and the associated part of the housing cover (5), on the one hand, and a space (b) between the flange (7) and an outer edge (12) of the housing cover (5), on the other, such that space (a) is smaller than space (b), so that when the housing cover (5) is installed on the filter housing (2), it first comes to rest on the sealing surface (6) and then, as the housing cover (5) becomes bowed, on the flange (7).
Il s'agit d'optimiser du point de vue de la simplicité de fabrication un filtre de respirateur (1) sous cartouche (2) ayant un rebord (7) en périphérie et comportant un passage traversant (3), une surface de scellement (6) et un couvercle (5), l'élément filtrant (4) étant logé à l'intérieur de la cartouche. € cette fin, on fait en sorte que, lorsque le couvercle (5) est parallèle à la cartouche (2), il y ait, d'une part, un espace (a) entre la surface de scellement (6) et la partie associée du couvercle (5) et, d'autre part, un espace (b) entre le rebord (7) et la périphérie extérieure (12) du couvercle (5), l'espace (a) étant plus petit que l'espace (b). Cette disposition fait que, lorsque le couvercle (5) est placé sur la cartouche (2), il prend appui d'abord sur la surface de scellement (6) puis sur le rebord (7) lorsqu'il est arqué.
Dragerwerk Aktiengesellschaft
Fetherstonhaugh & Co.
LandOfFree
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