SEPARATING APPARATUS

• US 20100242221A1
• Filed: 03/29/2010
• Published: 09/30/2010
• Est. Priority Date: 03/31/2009
• Status: Active Grant

• Current Assignee: Dyson Technology Limited (Beeswax Holdings UK Limited)
• Original Assignee: Dyson Technology Limited (Beeswax Holdings UK Limited)
• Inventors: Steadman, Guillaume Kristian, HORNE, Lucas, Worker, David Colin, Jupe, Matthew Robert
• Granted Patent: US 8,182,563 B2
• Time in Patent Office: Days
• US Class Current: 15/347
• CPC Class Codes: A47L 9/127 tube- or sleeve-shaped
• CPC Class Codes: A47L 9/1633 Concentric cyclones
• CPC Class Codes: A47L 9/1641 for parallel flow
• CPC Class Codes: B01D 45/12 by centrifugal forces centrifuges B04B; cyclones B04C
• CPC Class Codes: B01D 46/0032 using electrostatic forces to remove particles, e.g. electret filters
• CPC Class Codes: B01D 46/106 Ring-shaped filtering elements
• CPC Class Codes: B01D 50/20 Combinations of devices covered by groups B01D45/00 and B01D46/00
• CPC Class Codes: Y10S 55/03 Vacuum cleaner

Abstract

The present invention relates to a separating apparatus for separating particles from a fluid flow. Particularly, but not exclusively, the invention relates to a vacuum cleaner having such a separating apparatus for removing dust particles from a dust laden airstream. The separating apparatus includes a first cyclonic cleaning stage, a second cyclonic cleaning stage arranged downstream from the first cyclonic cleaning stage, and an elongate filter arranged downstream from the second cyclonic cleaning stage, wherein the filter is at least partially surrounded by the first cyclonic cleaning stage.

Claims

1. A separating apparatus comprising,

a first cyclonic cleaning stage,

a second cyclonic cleaning stage, arranged downstream from the first cyclonic cleaning stage, and

an elongate filter arranged downstream from the second cyclonic cleaning stage, wherein the filter is at least partially surrounded by the first cyclonic cleaning stage.

2. A separating apparatus according to claim 1 having a longitudinal axis wherein the longitudinal axis of the filter is in line with the longitudinal axis of the separating apparatus.

3. A separating apparatus according to claim 1 wherein the filter is formed from a plastics material.

4. A separating apparatus according to claim 1 wherein the filter is formed from an organic material.

5. A separating apparatus according to claim 1 wherein the filter is a sock filter.

6. A separating apparatus according to claim 1 wherein the filter is an electrostatic filter.

7. A separating apparatus according to claim 6 wherein the electrostatic filter is connected to a high voltage power supply.

8. A separating apparatus according to claim 7 wherein the high voltage power supply is generated by a PCB located in the separating apparatus.

9. A separating apparatus according to claim 1 wherein the second cyclonic cleaning stage comprises a plurality of secondary cyclones and a dust collecting bin.

10. A separating apparatus according to claim 9 wherein the dust collecting bin of the second cyclonic cleaning stage is surrounded by the first cyclonic cleaning stage.

11. A separating apparatus according to claim 10 wherein the electrostatic filter is partially or totally surrounded by the second cyclonic cleaning stage.

12. A separating apparatus according to claim 1 wherein the first cyclonic cleaning stage, the second cyclonic cleaning stage and the filter are arranged concentrically about a common central axis of the separating apparatus.

13. A separating apparatus according to claim 1 wherein the filter extends from at or near a top edge of the second cyclonic cleaning stage to at or near a base of separating apparatus.

14. A vacuum cleaner comprising a separating apparatus according to claim 1.

15. A vacuum cleaner according to claim 14 wherein the separating apparatus is removably mounted to a main body of the vacuum cleaner.