Manufacturing method for high-pressure tank

US11529780B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11529780-B2
Application numberUS-202017087967-A
CountryUS
Kind codeB2
Filing dateNov 3, 2020
Priority dateJan 20, 2020
Publication dateDec 20, 2022
Grant dateDec 20, 2022

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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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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A manufacturing method for a high-pressure tank includes joining a cylindrical member and dome members to each other so that a first reinforcing layer and a second reinforcing layer to which a cap is attached are formed, and after a resin material is poured inside the first reinforcing layer, rotating the first reinforcing layer so that the resin material covers an inner surface of the first reinforcing layer, and solidifying the resin material so that the liner is formed. The cap is attached to the first reinforcing layer so that a recessed portion in which the resin material is collected is formed between the cap and the first reinforcing layer. After the first reinforcing layer is rotated, the resin material is solidified in a state where the cap side is positioned on a lower side.

First claim

Opening claim text (preview).

What is claimed is: 1. A manufacturing method for a high-pressure tank provided with a liner in which gas is stored, a reinforcing layer covering an outer surface of the liner, and a cap that communicates with an inside of the liner, the method comprising: a first step in which two or more split bodies are joined to each other so that the reinforcing layer to which the cap is attached is formed; and a second step in which, after a resin material is poured inside the reinforcing layer formed in the first step, the reinforcing layer is rotated so that the resin material covers an inner surface of the reinforcing layer, and the resin material is solidified so that the liner is formed, wherein: in the first step, the cap is attached to the reinforcing layer so that a depressed portion where the resin material is collected is formed between the cap and the reinforcing layer; and in the second step, after the reinforcing layer is rotated so that the resin material covers the inner surface of the reinforcing layer, the resin material is solidified in a state where the cap side is located on a lower side.

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What does patent US11529780B2 cover?
A manufacturing method for a high-pressure tank includes joining a cylindrical member and dome members to each other so that a first reinforcing layer and a second reinforcing layer to which a cap is attached are formed, and after a resin material is poured inside the first reinforcing layer, rotating the first reinforcing layer so that the resin material covers an inner surface of the first re…
Who is the assignee on this patent?
Toyota Motor Co Ltd
What technology area does this patent fall under?
Primary CPC classification B29D22/003. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Dec 20 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).