Highly efficient autonomous vacuum cleaner

Details Highly efficient autonomous vacuum cleaner Highly efficient autonomous vacuum cleaner

2008-04-15

2008-04-15

Redding, David A (Department: 3723)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S349000, C015S412000

Reexamination Certificate

active

07356873

ABSTRACT:
The invention provides a vacuum cleaner comprising in particular a structure mounted on transport members (R, R′) and carrying an electrically-driven turbine (T) for acting through a filter membrane (M) to establish suction in a collector (S) of particles picked up from the floor and entrained to the collector by a flow of air via a transfer duct (C), characterized in that said turbine (T) comprises a set of blades (P) and a nozzle (1) having a box constituted by an upstream portion (11) in the form of a volute centered on the axis of the blades and a diverging downstream portion (12) into which the upstream portion opens out and that communicates with the outside.

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