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:
Jun. 02, 2020
Filed:
Aug. 14, 2017
Siemens Aktiengesellschaft, Munich, DE;
Christian Kirchner, Rheinberg, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A gas seal, in particular dry gas seal, which extends in a circumferential direction with respect to an axis, has a rotating slide ring and a stationary slide ring, wherein the stationary slide ring is axially movable. The gas seal has a slide sleeve and a pressure element which bears against the stationary slide ring at a first contact surface by a second contact surface, wherein, by the pressure element, an elastic element axially presses the stationary slide ring by way of the sealing surface of the latter against the rotating slide ring. The seal is arranged at least partially with a fastening portion between the two portions. The first portion is metal, the second portion is ceramic, and the slide sleeve is ceramic.