Dust suction device

Details Dust suction device Dust suction device

2007-06-19

2010-06-29

Nguyen, Dung Van (Department: 3723)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S347000

Reexamination Certificate

active

07743460

ABSTRACT:
A dust suction device (2), particularly in the form of an industrial vacuum cleaner, has a blower device (6) for generating an intake flow (S), a filter surface (16) for separating dust and dirt particles from the intake flow (S), a collecting chamber (18) for collecting the dust and the dirt particles which is located upstream of the filter surface (16) with respect to the intake flow (S), a clean air chamber (20) which is arranged downstream of the filter surface (16) and is separated from the collecting chamber (18) by the filter surface (16), with the filter surface (16) being acted upon in some areas by a cleaning flow of the blower device (6) which flows through the filter surface (16) in the direction opposite the direction of the intake flow (S), and an adjustable dividing wall (30) provided in the clean air chamber (20) and separating a vacuum area (40) that can be generated by the blower device (6) from an overpressure area (38) that can likewise be generated by the blower device (6).

REFERENCES:
patent: 4830642 (1989-05-01), Tatge et al.
patent: 5814114 (1998-09-01), Stueble
patent: 7318249 (2008-01-01), Lin
patent: 7351269 (2008-04-01), Yau
patent: 2005/0000055 (2005-01-01), Cheng

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