The Dyson Corporation

Dyson Technology Limited

Gordon James Howes

James Dyson

Peter David Gammack

Christopher Michael Kawomera Nyonyintono

Alexander Stuart Knox

Stuart Lloyd Genn

David Stuart Harris

Nicholas Timothy Spence

Benjamin Evans

A bagless vacuum cleaner includes a separating unit for separating dirt and dust from a dirt-laden airflow which is drawn in by the cleaner. The separating unit has a chamber with collection areas for collecting dirt and dust which is separated from the airflow. A base of the separating unit is movable between a closed position and an open position. A dividing wall between the collection areas is arranged so that its end is spaced from the base by different distances at different respective regions. This enables an enlarged opening, by which dirt and dust can be emptied from the chamber, to be provided, which facilitates emptying of the chamber.

Collecting chamber for a vacuum cleaner

Toaster

A vacuum cleaner comprises a cyclonic separator () for separating dirt and dust from an incoming airflow. A tool () and a suction conduit () connect the tool () to the separator (). The tool () comprises a main air inlet aperture for engaging with a surface to be cleaned and a bleed air inlet () for allowing air to bleed into the suction path. The bleed air inlet () is located such that it is separate from the main inlet. The cross-sectional area of the bleed air inlet () is sufficiently large that, in use, the bleed air inlet () admits a sufficient quantity of air to maintain adequate separation efficiency in the separator of the cleaner even when the main air inlet is fully blocked.

Vacuum cleaner with air bleed

Rolling support for a surface-treating appliance

Surface-treating appliance

Growing community of inventors

Malmesbury, United Kingdom

Gordon James Howes