Filter container for an absorption filter and a particle filter,

Details Filter container for an absorption filter and a particle filter, Filter container for an absorption filter and a particle filter,

1987-10-27

1991-10-01

Cohen, Lee S.

Surgery

Respiratory method or device

Means for removing substance from respiratory gas

12820528, 12820529, A62B 710

Patent

active

050523856

ABSTRACT:
The invention concerns a filter container for an absorption filter (8) and a particle filter (7), the container being adapted to be connected to a protective mask. The filter container is characterized in that it comprises a cup-shaped casing (1) which has in its bottom (2) an intake (3) for inhalation air, and a cover (4) closing the casing (1), the cover having an outtake (5) for inhalation air and being connectible to the protective mask, the particle filter (7) being arranged at the bottom (2) of the cup-shaped casing (1), and the absorption filter (8) being arranged between the particle filter and the cover (4) closing the casing; that the particle filter (7) is sealed to the casing (1) by glue (9) applied to the inner side of the casing; that the portion (14) of the cup-shaped casing (1) containing the particle filter (7) is essentially cylindrical and has a diameter smaller than the remaining cylindrical casing portion (13 ) containing the absorption filter; that the bottom (2) of the casing (1) and the cover (4) are slightly conically bulging outwardly towards the air intake (3) and the air outtake (5), respectively; and that closely lying, radially extending stiffening ribs (15, 16) are arranged on the slightly conical portions of the bottom (2) and the cover (4), respectively, and have their tops (17) facing inwardly towards the container lying in radial planes.

REFERENCES:
patent: 3118445 (1964-01-01), Norman
patent: 4543112 (1985-09-01), Ackley et al.
patent: 4548626 (1985-10-01), Ackley et al.
patent: 4714486 (1987-12-01), Silverthorn

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