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:
May. 05, 2026
Filed:
Oct. 26, 2021
Carl Freudenberg KG, Weinheim, DE;
Perambur Krishnan Venkateswaran, Sriperumbudar, IN;
Sowmik Sur, Kattupakkam, IN;
Carl Freudenberg KG, Weinheim, DE;
Abstract
The present disclosure is related to a dirt ingress seal () for shock absorbers and front forks. The dirt ingress seal comprising a first lip () that isolates the internal space of the seal () from the atmosphere and external environment; first ribs () formed on the inner side of the circumferential surface of the dirt ingress seal (), the first ribs () formed near the first lip (); a second lip () provided on the inner circumferential portion near the central region of the dirt ingress seal (); second ribs () defining cavities; and cavities defined by the first ribs (). The cavities are configured to arrest and trap mud, dust, dirt, and particulate matter entering the sealed zone and preventing further ingress of abrasive particles into the seal zone. The seal () increases the sealing effectiveness and useful life of seals, shock absorber, and front forks.