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. 20, 2026
Filed:
Apr. 11, 2023
Hendrickson Usa, L.l.c., Schaumburg, IL (US);
Jeffrey R. Wittlinger, Uniontown, OH (US);
Jay D. White, Lenoir, NC (US);
Dhawal P. Dharaiya, Twinsburg, OH (US);
David L Schaeffer, Louisville, OH (US);
Wyatt R. Weekley, Lincoln, NE (US);
Hendrickson USA, L.L.C., Schaumburg, IL (US);
Abstract
A slack adjuster assembly for use with a heavy-duty vehicle drum brake system, the slack adjuster assembly comprising a slack adjuster, a cam tube assembly, and an inboard sealing assembly and an outboard sealing assembly. The outboard sealing assembly includes a tubular sealing ring having an L-shaped projection extending radially-inward. The inboard sealing assembly engages an inboard side of the slack adjuster to form a 360-degree interface, and the outboard sealing assembly engages an outboard side of the slack adjuster to form another 360-degree interface. The L-shaped projection limits grease being purged from the cam tube assembly.