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:
May. 24, 2011
Filed:
Nov. 28, 2005
Rainer Scharp, Vaihingen, DE;
Bernd Mahr, Plochingen, DE;
Rainer Scharp, Vaihingen, DE;
Bernd Mahr, Plochingen, DE;
Mahle International GmbH, Stuttgart, DE;
Abstract
The invention relates to a two-piece piston () for an internal combustion engine, comprising a piston upper piece () and a piston lower piece (). A cylindrical molding () is arranged on the underside of the piston upper piece (), facing away from the piston crown, lying coaxial to the piston axis (), with two radial outward-facing hooked projections () on the end thereof facing away from the piston crown. The piston lower piece () has an opening () on the piston crown side, in which the cylindrical molding () with the projections () is introduced and rotated on assembly of the piston upper piece () on the piston lower piece (), such that the projections () engage behind the edge of the opening ().