FILTER ABSORBER Russian patent published in 2019 - IPC B01D50/00 B01D46/24 B01D53/04 A62B23/04 

FIELD: protective devices.

SUBSTANCE: invention relates to means of collective protection of people and is used to purify air for respiration from exposure to poisonous substances, radioactive dust, bacterial mixtures and potent poisonous substances. Filter absorber comprises cylindrical housing with bottom, detachable cover and folded anti-aerosol filter and sorbing unit arranged coaxially with said housing. Anti-aerosol filter is combined in form of "sprocket", placed in perforated cylinder and limited by two covers, wherein the upper cover is connected to the detachable cover so as to enable replacement of the anti-aerosol filter without disassembling the filter absorber, and the lower cover is attached by bayonet connection to the body bottom. Sorbent unit is pressed in the filter housing with a cover ring having on its inner side a bend for fixation of the unit, and with an external side rigidly connected to the filter housing. Cover ring is tightly connected with detachable cover. Ratio of diameters of detachable cover and housing is 1:(1.15÷1.2).

EFFECT: increased resource of filter operation, as well as creation of detachable structure of filter absorber of reusable action with increased dynamic activity for complex air cleaning, with possibility of replacement during operation of spent anti-aerosol filter.

1 cl, 1 dwg