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:
Apr. 16, 2013
Filed:
Dec. 03, 2007
Anna-karin Trydegård, Sundbyberg, SE;
Esbjörn Svantesson, Täby, SE;
Stefan Jonsson, Stockholm, SE;
Maria Berndtson, Stockholm, SE;
Anna-Karin Trydegård, Sundbyberg, SE;
Esbjörn Svantesson, Täby, SE;
Stefan Jonsson, Stockholm, SE;
Maria Berndtson, Stockholm, SE;
AB Electrolux, Stockholm, SE;
Abstract
A vacuum cleaner having a vacuum cleaner body, a suction fan and motor operatively associated with the vacuum cleaner body, and a wheel. The wheel has a wheel body having an axis of rotation, a tread surface, and a cushion layer radially interposed between the wheel body and the tread surface. The cushion layer includes a resilient shell having a plurality of resilient cells therein. The shell and the plurality of cells have one or more gasses in them, and are dimensioned to damp vibrations and impacts between the tread surface and a floor surface that the tread surface contacts as the wheel rotates about the axis of rotation.