Tire imbalance correction using coating method

US11220142B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11220142-B2
Application numberUS-201916428617-A
CountryUS
Kind codeB2
Filing dateMay 31, 2019
Priority dateJun 8, 2018
Publication dateJan 11, 2022
Grant dateJan 11, 2022

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  1. Title

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  2. Abstract

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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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Abstract

Official abstract text for this publication.

A method of correcting imbalance of a tire comprises a step of forming a coated layer on the inner surface of the tire at the point of lightest weight of the tire so as to reduce the imbalance of the tire. The coated layer has a black color substantially the same as the color of the inner surface so that it becomes difficult to recognize the correction of the weight imbalance.

First claim

Opening claim text (preview).

The invention claimed is: 1. A method of correcting imbalance of a tire comprising: a step of forming a black coated layer on a part of an inner surface of the tire including a point of lightest weight of the tire so as to reduce the imbalance of the tire, wherein the black coated layer is formed by applying a black paint, and the black paint is a dissolved-type water-soluble paint containing carbon black or alternatively an emulsion-type water-soluble paint containing carbon black. 2. The method according to claim 1 , wherein the black paint has a specific gravity of 1.00 to 1.10. 3. The method according to claim 1 , wherein a weight of the black coated layer is in a range from 3 to 10 grams. 4. The method according to claim 2 , wherein a weight of the black coated layer is in a range from 3 to 10 grams. 5. The method according to claim 1 , wherein a length in a tire circumferential direction of the black coated layer is in a range from 15 to 70 degrees in terms of an angle around a tire rotational axis. 6. The method according to claim 2 , wherein a length in a tire circumferential direction of the black coated layer is in a range from 15 to 70 degrees in terms of an angle around a tire rotational axis. 7. The method according to claim 3 , wherein a length in a tire circumferential direction of the black coated layer is in a range from 15 to 70 degrees in terms of an angle around a tire rotational axis. 8. The method according to claim 4 , wherein a length in a tire circumferential direction of the black coated layer is in a range from 15 to 70 degrees in terms of an angle around a tire rotational axis. 9. The method according to claim 1 , wherein the black paint is applied by spraying. 10. The method according to claim 1 , wherein the black paint is applied by brushing. 11. The method according to claim 1 , wherein a content of the carbon black in the black paint is not more than 10% by weight. 12. The method according to claim 2 , wherein a content of the carbon black in the black paint is not more than 10% by weight. 13. The method according to claim 1 , wherein a content of the carbon black in the black paint is not more than 10% by weight, the black paint has a specific gravity of 1.00 to 1.10, the black paint is applied by spraying or brushing, and a length in a tire circumferential direction of the black coated layer is in a range from 15 to 70 degrees in terms of an angle around a tire rotational axis.

Assignees

Inventors

Classifications

  • the rotating body being a vehicle wheel (F16F15/36 takes precedence; tyre parts or constructions not otherwise provided for B60C19/00) · CPC title

  • B60C19/003Primary

    Balancing means attached to the tyre · CPC title

  • the body being a vehicle wheel · CPC title

  • After-treatment specially adapted for vulcanising tyres · CPC title

  • Tyres · CPC title

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What does patent US11220142B2 cover?
A method of correcting imbalance of a tire comprises a step of forming a coated layer on the inner surface of the tire at the point of lightest weight of the tire so as to reduce the imbalance of the tire. The coated layer has a black color substantially the same as the color of the inner surface so that it becomes difficult to recognize the correction of the weight imbalance.
Who is the assignee on this patent?
Sumitomo Rubber Ind
What technology area does this patent fall under?
Primary CPC classification B60C19/003. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Jan 11 2022 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).