PORTABLE FILTER FOR WATER PURIFICATION UNDER FIELD CONDITIONS Russian patent published in 2006 - IPC C02F1/18 

FIELD: filtering equipment, in particular, portable filters for purifying of water under field or combat conditions.

SUBSTANCE: portable filter has piston pump which is hand-held during operation of filter, filtering members arranged at pump pressure line, inlet and outlet branch pipes for supplying of contaminated water and discharge of pure water, and individual reservoir to be filled with contaminated water by scooping it up, and independent filtering unit made in the form of case equipped with locks and branch pipes for supplying of contaminated water and discharge of pure water. Piston pump is fixed in reservoir. Filtering members are arranged in case in the course of flow of liquid and are made in the form of at least three purification stages: metal wire net filter for coarse purification of liquid, metal wire net filter for fine purification of liquid, and bactericidal filter. Reservoir is furnished with outlet pressure branch pipe connected through flexible hose with inlet branch pipe of filtering unit. Reservoir to be filled with contaminated water by scooping it up is made in the form of bucket closed with cover equipped with water intake slot. Hand-held piston has rotary lever pivotally connected with pump piston end projecting from cover and with cover itself, and is adapted for reciprocating of piston in cylinder.

EFFECT: convenient and safe usage under field or combat conditions, improved accessibility for repair, increased durability, prolonged service life, compact construction, provision for fine filtering and increased purification extent.

7 cl, 1 dwg