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:
Sep. 14, 2021
Filed:
Jul. 25, 2019
Trelleborg Sealing Solutions Germany Gmbh, Stuttgart, DE;
Holger Jordan, Neuhausen, DE;
Mandy Wilke, Böblingen, DE;
Trelleborg Sealing Solutions Germany GmbH, Stuttgart, DE;
Abstract
A seal arrangement includes first and second machine parts rotationally movable and forming a sealing gap. A radial shaft seal ring seals a high pressure side against a low pressure side. A base section held on a sealing holding structure of the first machine part has a sealing head contacting the sealing surface of the second machine part. The sealing surface has a high and low pressure first sealing surface sections. The first sealing surface section extends away from the sealing holding structure forming an acute angle. The sealing head contacts the first sealing section when an operating pressure is applied to the high pressure side, said operating pressure being smaller than a specified limit operating pressure value. The second sealing surface section forms an axial stop for the sealing head when an operating pressure is applied to the high pressure side being at least the limit operating pressure value.