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:
May. 20, 2014
Filed:
Jan. 25, 2008
Stefan Jonsson, Stockholm, SE;
Henrik Nygren, Bromma, SE;
Stefan Jonsson, Stockholm, SE;
Henrik Nygren, Bromma, SE;
AB Electrolux, , SE;
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.