Filter case holder

Details Filter case holder Filter case holder

1988-10-17

1989-05-23

Cohan, Alan

Surgery

Respiratory method or device

Means for removing substance from respiratory gas

12820627, A62B 1802

Patent

active

048320188

ABSTRACT:
A filter case for respiratory masks, in which filter inserts are held replaceably by a holder engaging in the case wall, is improved so that filter inserts of different structural heights and in various combinations can be fastened in it with the same holder. For this purpose, the holder includes a sleeve open at both ends surrounding a filter insert that can be fastened to the inner wall of the filter case and can be moved axially by a fastener necking inward at one of the end circumference of the sleeve. A respirator mask filter holder, comprising a casing having a wall with a tubular side, a sleeve 2 engaged in said tubular said 1 and being axially moveable therein, a filter cover having replaceable filters therein and having a projecting lip, and a fastener collar carried by said sleeve and engageable with said lip upon with said lip upon inward movement of said sleeve to position said filter case against said end wall.

REFERENCES:
patent: 2744523 (1956-05-01), Malcom

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