Patent ID: 7160347

Claim:
Main device for separating and collecting waste entrained by an air stream generated by a suction group of a vacuum cleaner, said device comprising an air intake channel ( 4 , 33 , 52 , 140 ) and a waste separating chamber ( 2 , 20 , 31 , 53 , 200 ) defining an internal volume having substantially the shape of a cylinder having a constant height, said air intake channel emerging along a tangential direction into said waste separating chamber, in the central part of said chamber ( 2 , 20 , 31 , 53 , 200 ) is arranged at least one opening ( 11 , 38 a , 38 b , 61 , 63 ) emerging into a duct connected to the suction group, said chamber ( 2 , 20 , 31 , 53 , 200 ) having a channel ( 8 , 40 , 68 , 110 ) for evacuating all waste flowing into said chamber along a radial direction, said channel ( 8 , 40 , 68 , 110 ) being connected to a sealed tank ( 10 , 37 , 76 , 100 ) collecting centrifuged waste, the air intake channel ( 4 , 33 , 52 , 140 ) and the waste evacuating channel ( 8 , 40 , 68 , 110 ) being arranged substantially at the same height in the waste separating chamber ( 2 , 20 , 31 , 53 , 200 ), characterized in that the diametral cross-section of the chamber ( 2 , 20 , 31 , 53 , 200 ) is comprised between two times and ten times the smallest cross-section of the channels carrying waste in said device.