The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2014
Filed:
Jan. 25, 2008
Stefan Jonsson, Stockholm, SE;
Jonas Beskow, Stockholm, SE;
Stefan Jonsson, Stockholm, SE;
Jonas Beskow, Stockholm, SE;
AB Electrolux, , SE;
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.