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:
Feb. 19, 2008
Filed:
Jan. 20, 2006
Helmut Schleβmann, Prüm, DE;
Tobias Wurster, Esslingen, DE;
Andreas Bähner, Weinstadt, DE;
Ralf-rainer Kemmler, Schwaikheim, DE;
Helmut Schleβmann, Prüm, DE;
Tobias Wurster, Esslingen, DE;
Andreas Bähner, Weinstadt, DE;
Ralf-Rainer Kemmler, Schwaikheim, DE;
Andreas Stihl AG & Co. KG, , DE;
Abstract
A piston for a two-cycle engine having a piston head and a piston wall in which are disposed wrist pin eyes. At least one undercut is formed between the underside of the piston head and the wrist pin eyes at a distance from the piston head. The undercut extends from the interior of the piston toward the piston wall. A respective thickened portion is provided in at least one region of the piston that is rotationally shifted about the longitudinal axis of the piston by 90° relative to one of the wrist pin eyes. The thickened portion is disposed at a distance below the piston head and extends into the interior of the piston.