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:
Dec. 30, 2014
Filed:
Feb. 21, 2012
Applicants:
Fredrik Sjöberg, Stockholm, SE;
Ulrik Danestad, Stockholm, SE;
Inventors:
Fredrik Sjöberg, Stockholm, SE;
Ulrik Danestad, Stockholm, SE;
Assignee:
Aktiebolaget Elctrolux, Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L 9/20 (2006.01); A47L 9/12 (2006.01);
U.S. Cl.
CPC ...
A47L 9/20 (2013.01); A47L 9/125 (2013.01); Y10S 55/03 (2013.01); Y10S 15/08 (2013.01);
Abstract
A filter unit () for a vacuum cleaner includes a filter body () and a dust removing means (). The filter body is elongated and at least partly flexible and the dust removing means is configured to collapse and expand the filter body in response to a force applied on the dust removing means. The filter body comprises pleats () extending along the filter body. The filter unit of the present invention is advantageous in that it reduces clogging and thereby increases the efficiency of the vacuum cleaner.