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. 13, 2001
Filed:
May. 07, 1999
Norbert Deppert, Gochsheim, DE;
Peter Wölki, Mönchengladbach, DE;
Robert Wieser, Viersen, DE;
Mannesmann Sachs AG, Schweinfurt, DE;
Abstract
A mounted piston ring for a piston/cylinder unit. The piston ring covers a circumferential surface of the piston and seals it off from the cylinder. The piston ring has a width which is greater than the height of the circumferential surface, so that there is an axially projecting length of the piston ring relative to the piston. This axially projecting length is shaped into a spring end which is axially supported on a top side of the piston. One spring end having a circular-arc-shaped transition which is designed to be between 90° and 180°, and which spring end comes to bear on the first top side of the piston. The other spring end having an annular bearing surface, comes to bear in the region of the opposite second top side of the piston. In this region the other spring end, with respect to the shaping angle, is adapted to the angle between the circumferential surface and the second top side.