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. 21, 2015
Filed:
Dec. 06, 2011
Andreas Neubauer, Ludwigsburg, DE;
Tim Gegg, Remseck, DE;
Andreas Neubauer, Ludwigsburg, DE;
Tim Gegg, Remseck, DE;
Andreas Stihl AG & Co. KG, Waiblingen, DE;
Abstract
The invention relates to a portable, handheld work apparatus such as a trimmer, a cut-off machine, a chain saw or the like, having a motor () to drive a rotating, exchangeable work tool (). A control unit () serves to control the operation of the motor (). The control unit () determines the rotational speed (n) and/or the power (P) of the motor (). According to the invention, the motor () can be operated in a first operating mode (I) with reduced rotational speed (n) and/or power (P) and in at least a second operating mode (II) with an increased rotational speed (n) and/or power (P). In dependence on a release signal, the control uses exclusively the first operating mode (I) for a limited operation and the second operating mode (II) for an expanded operation.