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. 22, 2022
Filed:
Jul. 14, 2020
Trelleborg Sealing Solutions Germany Gmbh, Stuttgart, DE;
Trelleborg Sealing Solutions Germany GmbH, Stuttgart, DE;
Abstract
An axial shaft seal ring has a holding portion and a sealing portion, which are connected to one another via an elastically deformable sealing membrane. The sealing membrane has a plurality of spatial structure areas R in the circumferential direction of the shaft seal ring, which serve as a circumferential reserve of the sealing membrane. As a result of a centrifugal force Faccompanying a rotational movement of the shaft seal ring around the central axis thereof and acting on the sealing membrane, an expansion of the sealing membrane in a radial direction is effected at least in the spatial structure areas, in such a manner that the sealing portion is acted upon by the sealing membrane with an axially directed pull force F, which is directed opposite to the pressing force F.