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. 22, 2007
Filed:
Dec. 01, 2005
Klaus-martin Uhl, Plochingen, DE;
Sebastian Friedrich, Waiblingen, DE;
Jens Riehmann, Stuttgart, DE;
Klaus-Martin Uhl, Plochingen, DE;
Sebastian Friedrich, Waiblingen, DE;
Jens Riehmann, Stuttgart, DE;
Andreas Stihl AG & Co. KG, Waiblingen, DE;
Abstract
A hand-guided working tool has an internal combustion engine having a crankshaft and a fan wheel driven by the crankshaft. An air cleaning device is provided for cleaning the combustion air for the internal combustion engine. The air cleaning device has a dirt chamber and a vacuum channel extending away from the dirt chamber and opening in the area of the fan wheel. A section of the vacuum channel is formed by a vacuum hose. The vacuum hose is arranged in a mounting area of a fastening element and comprises a mounting channel through which the fastening element is accessible.