Vacuum cleaner

US8726460B2 · kind B2 · utility

Assignee

• AB Electrolux · SE

Inventors

• Stefan Jonsson · Sollentuna, SE
• Henrik Nygren · Bromma, SE

Key dates

• Filing date: Jan 25, 2008
• Grant date: May 20, 2014
• Expiry date: Aug 20, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A47L9/20
• WIPO field: Furniture, games
• WIPO sector: Other fields

Abstract

A vacuum cleaner having a vacuum source adapted to generate an airstream, a filter, a separating unit having a first sub-separator and a second sub-separator, and airflow passages to connect the vacuum source, the filter and the separating unit in a first configuration corresponding to a vacuum cleaning mode and a second configuration corresponding to a filter cleaning mode. In the vacuum cleaning mode, the airflow passages are configured to direct the airstream through the separating unit such that the airflow passes in parallel through the first sub-separator and the second sub-separator, then in a forward direction through the filter. In the filter cleaning mode, the airflow passages are configured to direct the airstream through the separating unit such that airflow passes in a reverse direction through the filter, and then through the separating unit such that the airflow passes in series through the first sub-separator and the second sub-separator.