Laundry appliance
AssigneeDyson Limited
InventorDavid Ions
Life of this patent
Estimating the term…
Abstract
A laundry appliance (100;200) comprises an outer housing (102;202) and a drum (122;222) rotatably mounted therein. The drum (122;222) comprises an inner wall (32;132;232,232a) and an outer wall (34;134;234,234a), the inner and outer walls (32,34;132,134;232,234;232a,234a) being perforated to allow washing liquid to flow into and out of the drum (122;222) via the perforations (42,44;42a,44a;42b,44b;42c,44c;42d,44d;42e,44e). According to the invention, the area of the perforations (44;44a;44b;44c;44d;44e) per unit area of the outer wall (34;134;234,234a) is greater than the area of the perforations (42;42a;42b;42c;42d;42e) per unit area of the inner wall (32;132;232,232a).
Claims15
A laundry appliance comprising an outer housing and a drum mounted rotatably therein, the drum comprising an inner wall and an outer wall, the inner and outer walls being perforated to allow washing liquid to flow into and out of the drum via the perforations, characterised in that the area of the perforations per unit area of the outer wall is greater than the area of the perforations per unit area of the inner wall.
A laundry appliance as claimed in any one of the preceding claims, wherein each perforation in the outer wall is radially aligned with one of the perforations in the inner wall.
A laundry appliance as claimed in any one of the preceding claims, wherein each of the perforations in the outer wall is larger than each of the perforations in the inner wall.
A laundry appliance as claimed in any one of the preceding claims, wherein the perforations are formed by stamping or punching.
A laundry appliance as claimed in any one of the preceding claims, wherein the inner wall is rigidly attached to the outer wall and is rotatable therewith.
A laundry appliance as claimed in any one of the preceding claims, further comprising a watertight tub in which the drum is rotatably mounted, and the drum is rotatable about an axis which is substantially horizontal.
A laundry appliance as claimed in any one of the preceding claims, wherein the laundry appliance is a washing machine.
A laundry appliance substantially as hereinbefore described with reference to any one of the embodiments shown in the accompanying drawings.
Dependencies are inferred from the claim text.