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US 8,474,091 B2Granted
Cleaning appliance
AssigneeDyson Technology Limited
InventorsJames Dyson, Peter David Gammack, Emma Jane Heatley-Adams, Robert Mark Brett Coulton
Life of this patent
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Abstract
A cleaning appliance of the canister type includes a substantially spherical floor engaging rolling assembly including a fluid inlet for receiving a fluid flow and a device for acting on the fluid flow received through the inlet, and a plurality of floor engaging support members for supporting the rolling assembly as it is maneuvered over a floor surface.
Claims21
A cleaning appliance of the canister type comprising:
- a main body having an exterior surface defining a portion of a sphere, a fluid inlet for receiving a fluid flow, and a device for acting on the fluid flow received through the inlet;
- a pair of dome-shaped rolling elements having substantially spherical curvature, the rolling elements being rotatable relative to the main body on opposite sides thereof and which define along with the main body a substantially spherical assembly;
- and a plurality of floor engaging support members for supporting the substantially spherical assembly as it is manoeuvred over a floor surface.
Dependencies are inferred from the claim text.