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:
Mar. 11, 2014
Filed:
Apr. 14, 2011
Arno Kinnen, Fellbach, DE;
Felix Mayer, Waiblingen, DE;
Wolfgang Layher, Besigheim, DE;
Andreas Stihl AG & Co. KG, Waiblingen, DE;
Abstract
A hand-guided work apparatus includes a combustion engine to drive a work tool. The combustion engine includes a crankcase () in which a crankshaft () is rotatably mounted about a rotational axis (). A pressure sensor () and a temperature sensor () are arranged on the crankcase (). The pressure sensor () and the temperature sensor () are arranged in a common sensor housing (). In the typical put-down position () of the work apparatus, the pressure sensor () and the temperature sensor () are arranged below a plane () which is parallel to the horizontal storage surface () and contains the rotational axis () of the crankshaft (). A connecting channel () is formed in the sensor housing (). The connecting channel () connects the pressure sensor () to the crankcase interior () and the base () of the connecting channel () slopes down toward the crankcase interior () in the typical put-down position () of the work apparatus.