CLEANING APPLIANCE

• US 20090106932A1
• Filed: 10/13/2008
• Published: 04/30/2009
• Est. Priority Date: 10/25/2007
• Status: Active Grant

• Current Assignee: Dyson Technology Limited (Beeswax Holdings UK Limited)
• Original Assignee: Dyson Technology Limited (Beeswax Holdings UK Limited)
• Inventors: Courtney, Stephen Benjamin
• Granted Patent: US 8,112,842 B2
• Time in Patent Office: Days
• US Class Current: 15/347
• CPC Class Codes: A47L 9/1481 Means for removing bags in suction cleaners, e.g. ejecting means; Means for exchanging bags

Abstract

A cleaning appliance includes a main body, including a motor and fan unit for generating an airflow, a separating apparatus for separating dirt and dust from the airflow and a passageway for receiving a filter. The passageway and a filter may be located downstream of the separating apparatus and upstream of the motor, and the filter may have an at least partially curved filter surface. The filter is arranged around at least a part of the motor and fan unit. The filter is removable through a side, and through a wheel, of the appliance. The arrangement facilitates ease of removal of the filter from the cleaning appliance.

Claims

1. A cleaning appliance comprising a main body, the main body including a motor and fan unit for generating an airflow, a separating apparatus for separating dirt and dust from the airflow and a filter arranged around at least a part of the motor and fan unit, wherein the filter is removable through a side of the appliance.

2. The cleaning appliance of claim 1, wherein the filter is removable through a wheel arranged at the side of the appliance.

3. The cleaning appliance of claim 2, wherein a portion of the wheel is moveable between sealed and open positions.

4. The cleaning appliance of claim 2 or 3, wherein the wheel comprises a fastening device configured to retain and release the opening portion.

5. The cleaning appliance of claim 1 or 2, wherein at least part of the filter has a curved surface.

6. The cleaning appliance of claim 1 or 2, wherein the filter is cylindrical.

7. The cleaning appliance of claim 6, wherein the filter extends fully around the motor and fan unit.

8. The cleaning appliance of claim 1 or 2, further comprising a passageway for receiving the filter, the passageway forming a scroll inlet to the filter.

9. The cleaning appliance of claim 8, wherein the passageway comprises a wall and wherein the cross-sectional area of the passageway between the wall and the filter surface decreases in the downstream direction.

10. The cleaning appliance of claim 1 or 2, wherein the filter is located downstream of the separating apparatus and upstream of the motor and fan unit.

11. The cleaning appliance of claim 1 or 2, wherein the filter is located downstream of the motor and fan unit.

12. A vacuum cleaner comprising the cleaning appliance of claim 1 or 2.

13. A vacuum cleaner comprising the cleaning appliance of claim 7.

14. A vacuum cleaner comprising the cleaning appliance of claim 9.