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. 16, 2014
Filed:
Dec. 05, 2011
Andreas Neubauer, Ludwigsburg, DE;
Robert Böker, Winnenden, DE;
Andreas Neubauer, Ludwigsburg, DE;
Robert Böker, Winnenden, DE;
Andreas Stihl AG & Co. KG, Waiblingen, DE;
Abstract
The invention relates to a portable handheld work apparatus such as a cutoff machine, motor-driven chain saw, brushcutter, blower apparatus or the like. The apparatus includes a drive motor () for driving a work tool () and is provided with a security circuit (). The security circuit () switches the drive motor () of the work apparatus into an operational-ready state or into an out-of-service state in dependence upon received signals of a receiver unit (). The receiver unit is configured to receive at least one operating code. The receiver unit () is configured for receiving a service code () and, with the receipt of a service code, switches the drive motor into only a temporary service state.