DEVICE FOR CLEANING OF FILLED FILTERS Russian patent published in 2001 - IPC

FIELD: public utilities, particularly, sewage and tap water purification; applicable in cleaning of gravitation filter media. SUBSTANCE: device has filter reservoir and electric drive with pull chain, pull chain tensioning mechanism, at least two supporting and running cars for reciprocation over guides which are located under filter reservoir. Said cars are interconnected by common cantilever, and car wheels running over guides have flanges. Filter reservoir contains washing tube with holes to provide for water jets flowing under pressure of 4-5 atm. Said tube is connected with cantilever by means of at least two metal tire-rods into single three-dimensional structure. EFFECT: higher efficiency. 4 cl, 1 dwg, 2 tbl