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. 30, 2024
Filed:
Nov. 16, 2021
Federal-mogul Valvetrain Gmbh, Barsinghausen, DE;
Dirk Schober, Uetze, DE;
Frank Zwein, Burscheid, DE;
Florian Ringeling, Hannover, DE;
Thorsten Matthias, Garbsen, DE;
Stefan Kellermann, Barsinghausen, DE;
Federal-Mogul Valvetrain GmbH, Barsinghausen, DE;
Abstract
A valve rotating device with valve stem seal includes a valve rotating device, with a cylinder head rest and a spring rest intended to bear against a valve spring during operation. The valve rotating device is designed to rotate the spring rest relative to the cylinder head rest during operation. A valve stem seal is attached to the cylinder head rest of the valve rotating device. The valve stem seal being designed to bear against a valve stem and to seal same during rotational and axial movements.