Vacuum cleaner

US8881342B2 · kind B2 · utility

Assignee

• AB Electrolux · SE

Inventors

• Stefan Jonsson · Sollentuna, SE
• Jonas Beskow · Stockholm, SE

Key dates

• Filing date: Jan 25, 2008
• Grant date: Nov 11, 2014
• Expiry date: Mar 9, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A47L9/1666
• WIPO field: Furniture, games
• WIPO sector: Other fields

Abstract

A vacuum cleaner having a main separating unit, a filter, an auxiliary separating unit, a vacuum source adapted to generate an airstream, and airflow passages configured to operate in a vacuum cleaning mode and a filter cleaning mode. In the vacuum cleaning mode, the airflow passages are configured to direct the airstream through the main separating unit and then through the filter in a first direction, and the airflow substantially bypasses the auxiliary separating unit. In the filter cleaning mode, the airflow passages are configured to direct the airstream through the filter in a second direction, opposite the first direction, and then through the auxiliary separating unit. A method for operating a vacuum cleaner is also provided.