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:
Oct. 18, 2011
Filed:
Dec. 18, 2006
Hans-dieter Leidecker, Eschborn, DE;
Götz Mehner, Königstein, DE;
Matthias Würz, Oberursel, DE;
Norbert Leidecker, Eschborn, DE;
Uwe Zeibig, Achern, DE;
Herwig Bauer, Bad Vilbel, DE;
Hans-Dieter Leidecker, Eschborn, DE;
Götz Mehner, Königstein, DE;
Matthias Würz, Oberursel, DE;
Norbert Leidecker, Eschborn, DE;
Uwe Zeibig, Achern, DE;
Herwig Bauer, Bad Vilbel, DE;
Continental Teves AG & Co. oHG, Frankfurt, DE;
Sander Umformtechnik GmbH & Co., KG, Rechen/Ulm, DE;
Abstract
A piston for a hydraulic brake configured as a bowl, open on one side, with a longitudinal axis, a wall and a bottom, and is delimited on an open end face by a rim with an axial abutment surface which is movable into abutment on a brake pad. The bottom has an essentially plane outside surface, a wall thickness of the bottom is thicker than a minimum wall thickness of the wall, and at a transition area between bottom and wall, a wall thickness of the wall is continuously increasing towards the bottom, thus, the wall passing over into the bottom in a slope. Furthermore, a method including forming a disc-shaped round blank into a bowl-type hollow cylinder, and upsetting the hollow cylinder in its longitudinal axis so that the bottom material is thickened due to the upsetting operation.