Vacuum cleaner

Patent metadata

Field	Value
Publication number	US-9681786-B2
Application number	US-201514843421-A
Country	US
Kind code	B2
Filing date	Sep 2, 2015
Priority date	Sep 3, 2014
Publication date	Jun 20, 2017
Grant date	Jun 20, 2017

Abstract

A vacuum cleaner comprising a main body and a cyclonic separating apparatus. The separating apparatus comprises a dirt collection chamber and a baffle arrangement, and is mounted within the main body such that a first part of the dirt collection chamber is obscured and a second part of the dirt collection chamber is visible during normal use. The baffle arrangement is positioned within the dirt collection chamber such that, during use, an airflow moving within the dirt collection chamber is disrupted by the baffle arrangement causing dirt to collect preferentially in the second part.

First claim

The invention claimed is:

1. A vacuum cleaner comprising a main body and a cyclonic separating apparatus, the separating apparatus comprising a dirt collection chamber and a baffle arrangement, wherein the separating apparatus is mounted within the main body such that a first part of the dirt collection chamber is obscured and a second part of the dirt collection chamber is visible, and the baffle arrangement is positioned within the dirt collection chamber such that, during use, an airflow moving within the dirt collection chamber is disrupted by the baffle arrangement causing dirt to collect preferentially in the second part.

2. The vacuum cleaner of claim 1 , wherein the dirt collection chamber is cylindrical and is bounded by an outer wall and a base, the baffle arrangement comprises a plurality of baffles, and each baffle extends radially along the base.

3. The vacuum cleaner of claim 2 , wherein the baffles are positioned such that the airflow moving around the dirt collection chamber is caused to follow a sinuous path through the baffle arrangement.

4. The vacuum cleaner of claim 1 , wherein the separating apparatus comprises a first stage and a second stage, the second stage is located downstream from the first stage, the first stage comprises the dirt collection chamber, the second stage comprises a further dirt collection chamber, and the dirt collection chamber surrounds the further dirt collection chamber.

5. The vacuum cleaner of claim 4 , wherein the dirt collection chamber is cylindrical and is bounded by an inner wall, an outer wall and a base, the further dirt collection chamber is bounded by the base and the inner wall, the baffle arrangement comprises a plurality of baffles, and each baffle extends radially between the inner and outer walls of the dirt collection chamber.

6. The vacuum cleaner of claim 1 , wherein the dirt collection chamber is cylindrical, the baffle arrangement is located in a sector of the dirt collection chamber, and the sector spans an angle of between 90° and 140°.

7. The vacuum cleaner of claim 1 , wherein the baffle arrangement comprises between three and six baffles.

8. The vacuum cleaner of claim 1 , wherein the dirt collection chamber is cylindrical, the baffle arrangement comprises three baffles, the first and third baffles span an angle of between 90° and 140°, and the second baffle is positioned between the first and third baffles.

9. The vacuum cleaner of claim 1 , wherein the vacuum cleaner is a robotic vacuum cleaner.

Assignees

• Dyson Technology Ltd

Inventors

• Mitchell Joanne Katy
• Luetchford Peter Graham
• Patel Ketan

Classifications

• A47L9/16 Primary

  Arrangement or disposition of cyclones or other devices with centrifugal action · CPC title

• A47L9/1683 Primary

  Dust collecting chambers; Dust collecting receptacles · CPC title

• A47L9/1608

  Cyclonic chamber constructions · CPC title

• A47L9/1633

  Concentric cyclones · CPC title

• B04C5/185

  Dust collectors · CPC title