Air spring for cab of heavy truck with automatic height adjustment

US12222017B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12222017-B2
Application numberUS-202217570047-A
CountryUS
Kind codeB2
Filing dateJan 6, 2022
Priority dateAug 31, 2021
Publication dateFeb 11, 2025
Grant dateFeb 11, 2025

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

An air spring for a cab of a heavy truck with automatic height adjustment, in which the air spring is provided between the cab and a frame of a truck and supports the cab with a pressure of air filling in the air spring, includes a canister in which an internal space is formed, and a piston movably mounted in the internal space of the canister and configured to ascend and descend relative to the canister. A port opening unit is provided adjacent to an intake port and an exhaust port of the piston, respectively. When the cab ascends or descends, each of the port opening units comes into contact with guides, each having an inclined surface, formed in the canister to open either the intake port or the exhaust port.

First claim

Opening claim text (preview).

What is claimed is: 1. An air spring apparatus for a cab of a truck with automatic height adjustment, which is provided between the cab and a frame of the truck and supports the cab with a pressure of air filling in the air spring apparatus, the air spring apparatus comprising: a canister in which an internal space is formed; a guide provided within the internal space of the canister; a piston movably mounted in the internal space of the canister and configured to ascend and d…

Assignees

Inventors

Classifications

  • B62D33/10Primary

    Operations & Transport · mapped topic

  • Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

  • Operations & Transport · mapped topic

  • Mechanical Engineering · mapped topic

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Frequently asked questions

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What does patent US12222017B2 cover?
An air spring for a cab of a heavy truck with automatic height adjustment, in which the air spring is provided between the cab and a frame of a truck and supports the cab with a pressure of air filling in the air spring, includes a canister in which an internal space is formed, and a piston movably mounted in the internal space of the canister and configured to ascend and descend relative to th…
Who is the assignee on this patent?
Hyundai Motor Co Ltd, Kia Corp
What technology area does this patent fall under?
Primary CPC classification B62D33/10. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Feb 11 2025 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).