And Downstream Filter Patents and Patent Applications (Class 96/310) - Justia Patents Search

And Downstream Filter Patents (Class 96/310)

Vacuum cleaner apparatus with at least three stages of dust collection, of the type with a path partially submerged in water and provided with a separation labyrinth

Patent number: 6206955

Abstract: An improved vacuum cleaner apparatus having at least three stages of dust collection with a path partially submerged in water and provided with a separation labyrinth. The apparatus is subdivided into two parts, an upper one which includes the support body of a suction motor unit, and a lower one which includes the labyrinth. The lower one provides an intermediate washable filter. The support body is housed in an opening coated by an acoustic insulating material.

Type: Grant

Filed: April 26, 1999

Date of Patent: March 27, 2001

Assignee: W.S. S.p.A.

Inventor: Silvano Pietrobon