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:
Jan. 06, 2026
Filed:
Jun. 27, 2024
Trelleborg Sealing Solutions Us, Inc., Ft. Wayne, IN (US);
Martin Franz, Wannweil, DE;
Jeff Baehl, Fort Wayne, IN (US);
Nino Dakov, Stuttgart, DE;
Felix Schiefer, Stuttgart, DE;
TRELLEBORG SEALING SOLUTIONS US, INC., Ft. Wayne, IN (US);
Abstract
A radial shaft seal has a polymer sealing ring, a holding section having a polymer-bonded reinforcement insert, and a sealing lip extending away from the holding section in an axial direction of the sealing ring. The sealing lip has a first end connected to the holding section and a free second end provided with a sealing edge on a radial inside and a groove on a radial outside of the sealing lip. A radially deformable deformation zone of the sealing lip is between the first end and the sealing edge. The radial shaft seal has a spring in the groove energizing the sealing lip. The sealing ring has a protrusion axially extending from the holding section towards the spring forming an axial stop for the spring and, thus, for the second end of the sealing lip when the deformation zone of the sealing lip is deformed radially inwards.