Cleaning unit of roads and the like

Details Cleaning unit of roads and the like Cleaning unit of roads and the like

2006-10-05

2009-10-27

Nguyen, Dung Van (Department: 3723)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S347000, C015S346000

Reexamination Certificate

active

07607195

ABSTRACT:
A cleaning unit is disclosed, comprising: a containment chamber (2) defining an accumulation base (10), a suction apparatus (3) including a suction inlet (6) positioned close to the ground, and a filtering apparatus (12), the suction apparatus (3) comprising primary suction means (4) and secondary suction means (5) positioned in parallel to one another above the accumulation base (10), the primary suction means (4) controlling said suction inlet (6) and the secondary suction means (5) being suitable to expel filtered air, and the containment chamber (2) including separating element (9) which separates the turbulent zone (5a), the air inside of which being highly turbulent, and a recirculation zone (4a), the air inside of which having a low turbulence, the recirculation zone (4a) being connected to the primary suction means (4) and the turbulent zone (5a) being connected to the secondary suction means (5).

REFERENCES:
patent: 3540073 (1970-11-01), Issenmann et al.
patent: 4099290 (1978-07-01), Hiszpanski et al.
patent: 4160302 (1979-07-01), Hirst et al.
patent: 4554701 (1985-11-01), Van Raaij
patent: 4570287 (1986-02-01), Kerschener et al.
patent: 4754521 (1988-07-01), Zoni
patent: 2007/0157421 (2007-07-01), Imao et al.
patent: WO 2005/024138 (2005-03-01), None

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