Automatic slack adjuster
US-11209062-B2 · Dec 28, 2021 · US
Slack adjuster assembly for drum braking systems
US12529404B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12529404-B2 |
| Application number | US-202318133035-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 11, 2023 |
| Priority date | Aug 28, 2020 |
| Publication date | Jan 20, 2026 |
| Grant date | Jan 20, 2026 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
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.
First claim
Opening claim text (preview).
What is claimed is: 1 . 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, said outboard sealing assembly including a tubular sealing ring having an L-shaped projection extending radially-inward; wherein said inboard sealing assembly engages an inboard side of said slack adjuster to completely enclose a central aperture of the slack adjuster and form a 360-degree interface, and said outboard sealing assembly engages an outboard side of said slack adjuster to form a 360-degree interface; and wherein said L-shaped projection limits grease being purged from said cam tube assembly. 2 . A slack adjuster assembly for use with a heavy-duty vehicle drum brake system, the slack adjuster assembly comprising: a slack adjuster, said slack adjuster including a hex extension at least partially projecting longitudinally away from said slack adjuster in a direction and a projection extending longitudinally in said direction away from and adjacent to an opening, said opening receiving a clevis for connecting to a pushrod; wherein the projection physically prevents connection of said clevis to the slack adjuster from the direction and incorrect orientation of the slack adjuster.
Assignees
Inventors
Classifications
Assembly or disassembly · CPC title
for angular adjustment of two concentric parts of the brake control systems · CPC title
- F16D65/52Primary
self-acting in one direction for adjusting excessive play · CPC title
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Frequently asked questions
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- What does patent US12529404B2 cover?
- 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…
- Who is the assignee on this patent?
- Hendrickson Usa Llc
- What technology area does this patent fall under?
- Primary CPC classification F16D65/52. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 20 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).