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:
Sep. 13, 2011
Filed:
Sep. 10, 2008
Günter Wied, Leutenbach, DE;
Uwe Gaese, Stuttgart, DE;
Günter Wied, Leutenbach, DE;
Uwe Gaese, Stuttgart, DE;
Andreas Stihl AG & Co. KG, Waiblingen, DE;
Abstract
A portable handheld work apparatus has a housing () which has at least one intake opening (). A drive motor () is mounted in the housing () and this drive motor drives a fan wheel (). The fan wheel () inducts a cooling airflow () into the housing () through the intake opening (). The cooling airflow () is moved to the drive motor () by the fan wheel (). A driven drive element rotating about the rotational axis () is provided. To prevent a wrapping of long-fibrous material onto the rotating drive element, it is provided that the drive element is surrounded at least partially by a wrap protector () fixed to the housing. The wrap protector has a radially outwardly directed flange () referred to the rotational axis (). The flange () is at a distance (a) to an adjacent, rotatably driven component.