Attachment for a vacuum cleaning appliance
AssigneeDyson Technology Limited
InventorsStephen Benjamin Courtney, Leigh Michael Ryan
Life of this patent
Estimating the term…
Abstract
An attachment for a vacuum cleaning appliance, the attachment including a head divided into a first rotatable member and a second rotatable member, each rotatable member comprising means for sweeping dirt from a surface, a conduit connectable to a vacuum cleaning appliance for conveying an air flow from the head towards the appliance, a drive mechanism for rotating the head about a first axis while simultaneously rotating the first rotatable member about a second axis and the second rotatable member about a third axis, each of the second axis and the third axis being angled to the first axis, and means for dislodging dirt from the sweeping means with rotation of the head about the first axis so that dislodged dirt may become entrained within the air flow.
Claims25
An attachment for a vacuum cleaning appliance, the attachment comprising:
- a head divided into a first rotatable member and a second rotatable member, each rotatable member comprising a sweeping mechanism that sweeps dirt from a surface;
- a conduit connectable to a vacuum cleaning appliance configured to convey an air flow from the head towards the appliance;
- a drive mechanism configured to rotate the head about a first axis while simultaneously rotating the first rotatable member about a second axis and the second rotatable member about a third axis, each of the second axis and the third axis being angled to the first axis;
- and
- a dislodging mechanism configured to dislodge dirt from the sweeping mechanism with rotation of the head about the first axis.
A cleaning appliance comprising:
- a motor-driven fan unit configured to generate an air flow;
- a head divided into a first rotatable member and a second rotatable member, each rotatable member comprising a sweeping mechanism that sweeps dirt from a surface;
- a conduit configured to convey the air flow from the head towards the fan unit;
- a drive mechanism configured to rotate the head about a first axis while simultaneously rotating the first rotatable member about a second axis and the second rotatable member about a third axis, each of the second axis and the third axis being angled to the first axis;
- and
- a dislodging mechanism configured to dislodge dirt from the sweeping mechanism with rotation of the head about the first axis.
Dependencies are inferred from the claim text.