Wheeled vehicle having retractable driven tracks
US-12071184-B2 · Aug 27, 2024 · US
Suspension system and control method for track-propelled machines
US8973688B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8973688-B2 |
| Application number | US-201113330887-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 20, 2011 |
| Priority date | Dec 20, 2011 |
| Publication date | Mar 10, 2015 |
| Grant date | Mar 10, 2015 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
Official abstract text for this publication.
A suspension system for cold planer with four tracks is disclosed. The suspension system includes a hydraulic cylinder for each track, an additional bypass valve for each hydraulic cylinder and an additional bypass valve that bypasses the operation of the front control valves that control the elevation of the front tracks during a cutting operation. During transport or roading of the cold planer, the bypass valves are energized by a controller and the energized bypass valves provide communication between the head ends of the left side cylinders and the head ends of the right side cylinders. During roading, the energized bypass valves also provide communication between the rod ends of the front cylinders and between the rod ends of the rear cylinders.
First claim
Opening claim text (preview).
What is claimed is: 1. A suspension system for a tracked vehicle, the system comprising: a left front cylinder, a left rear cylinder, a right front cylinder and a right rear cylinder, each of said cylinders including a head end and a rod end, a left front bypass valve, a left rear bypass valve, a right front bypass valve, a right rear bypass valve and a front central bypass valve, the left front bypass valve in communication with the head end of the left front cylinder and the…
Assignees
Inventors
Classifications
- B62D55/116Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
- B62D55/065Primary
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8973688B2 cover?
- A suspension system for cold planer with four tracks is disclosed. The suspension system includes a hydraulic cylinder for each track, an additional bypass valve for each hydraulic cylinder and an additional bypass valve that bypasses the operation of the front control valves that control the elevation of the front tracks during a cutting operation. During transport or roading of the cold plane…
- Who is the assignee on this patent?
- Steffen Craig M, Caterpillar Paving Prod
- What technology area does this patent fall under?
- Primary CPC classification B62D55/116. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 10 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).