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:
Jul. 01, 2025
Filed:
Aug. 26, 2022
Samson Aktiengesellschaft, Frankfurt am Main, DE;
Stefan Kolbenschlag, Darmstadt, DE;
SAMSON AKTIENGESELLSCHAFT, Frankfurt am Main, DE;
Abstract
A control valve unit includes a valve rod sealed from a valve housing via a seal assembly. The seal assembly has a packing, received axially between a pressure sleeve and a counter bearing on the valve housing. The pressure sleeve is movably and axially mounted via a pressing element relative to the valve housing and transmits a pressing force to the pressure sleeve by a spring element to the packing. The spring element is supported on a pretensioning device with an adjustable distance to the counter bearing. The pressing force of the spring element on the pressure sleeve is adjustable and the spring element is arranged axially between first and second stops of the pretensioning device. In a preinstalled state of the pretensioning device, the spring element is supported on the first and second stops. In an operating state, the second stop is at a fixed distance to the first stop in the direction of the counter bearing. The change in the axial position of the pressure sleeve is limited by the second stop and at a distance to the pressure element in the direction of the counter bearing.