Respirator filter

Details Respirator filter Respirator filter

1995-03-07

1997-04-15

Millin, V.

Surgery

Respiratory method or device

Means for removing substance from respiratory gas

12820527, 12820529, 55501, 55475, A62B 700

Patent

active

056199899

ABSTRACT:
A respirator filter with a pot-shaped filter housing, with a flange at the edge of the filter housing, with a flow channel passing through the filter housing with a sealing surface, with a housing cover and with a filter element located in the filter housing is to be optimized in terms of simpler manufacture. To accomplish this task, with the housing cover located at a spaced location from and in parallel to the filter housing, a distance a between the sealing surface and the corresponding part of the housing cover, on the one hand, and a distance (b) between the flange and an outer edge of the housing cover, on the other hand, are dimensioned such that distance (a) is smaller than distance (b), so that when the housing cover is being placed on the filter housing, it comes into contact first with the sealing surface and then with the flange, while the housing cover warps.

REFERENCES:
patent: 3417551 (1968-12-01), Bonell
patent: 3803817 (1974-04-01), Lewis
patent: 4543112 (1985-09-01), Ackley et al.
patent: 4714486 (1987-12-01), Silverthron
patent: 5038775 (1991-08-01), Maruscak et al.

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