Patent ID: 7293327
Filing Date: 2007-11-13
Classification: A47L,B08B,E01H

Abstract:
1. Device for suction of waste and similar, in a cleaning machine comprising a suction system comprising a suction pipe ( 2 ) defining an axis ( 2 a ) and an inlet aperture ( 3 ) of said suction pipe ( 2 ), said device comprising a sweeper device ( 4 ) of said pipe ( 2 ) near said inlet aperture ( 3 ) suitable to expel impediments from said suction pipe ( 2 ), said sweeper device ( 4 ) comprising a piston ( 4 a ) having a forward trajectory ( 5 ) completely crossing the internal diameter of the pipe and interfering with said suction pipe ( 2 ), and slanting in space with respect to said axis ( 2 a ), and in which said piston ( 4 a ) moves between a rest position outside said suction pipe ( 2 ) and an advanced position in said suction pipe ( 2 ) at said inlet aperture ( 3 ).