PORTABLE ISOLATING SELF-RESCUER Russian patent published in 1997 - IPC

Abstract SU 1677895 A1

FIELD: respiratory technics. SUBSTANCE: in respiratory apparatus, housing of respiratory sac is made in the form of cylinder and flanges 2,6 of regenerative cartridge 3 and protection valve 5 are disposed on sac housing 1 in such a way that angle between axis of cartridge 3 and thread 8 of valve 5 ranges from 30 to 80 deg. EFFECT: provided safe operation in narrow rooms and excluded barotraumatism of lungs. 3 dwg

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SU 1 677 895 A1

Authors

Puzyrevskij A.P.

Korotkov L.P.

Dates

1997-07-27—Published

1971-11-25—Filed