Ink refill container
US-2024383254-A1 · Nov 21, 2024 · US
Liquid tank and liquid ejecting apparatus
US2022055370A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022055370-A1 |
| Application number | US-202117407696-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 20, 2021 |
| Priority date | Aug 21, 2020 |
| Publication date | Feb 24, 2022 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A liquid tank includes: a liquid supply section; a liquid chamber; a liquid-communication flow path an air-communication flow path. The liquid-communication flow path has, in a liquid flow direction from the liquid chamber toward the liquid ejecting head: an upstream end coupled to the liquid chamber; an upward flow path located downstream of the upstream end and extending upward in the attached state; a downward flow path located downstream of the upward flow path and extending downward in the attached state; and a downstream end located downstream of the downward flow path and coupled to the liquid supply section and the air-communication flow path. The liquid-communication flow path has, at an intermediate position thereof, a narrow portion in which the sectional area of the liquid-communication flow path is small.
First claim
Opening claim text (preview).
What is claimed is: 1 . A liquid tank configured to be attached to a liquid ejecting apparatus having a liquid ejecting head, the liquid tank comprising: a liquid supply section that supplies liquid to the liquid ejecting head; a liquid chamber configured to store the liquid to be supplied to the liquid supply section; a liquid-communication flow path that couples the liquid chamber and the liquid supply section, through which the liquid stored in the liquid chamber is configured to be supplied to the liquid supply section, and that forms an upwardly projecting flow path in an attached state in which the liquid tank is attached to the liquid ejecting apparatus; and an air-communication flow path that couples the liquid chamber and the liquid supply section, through which air is configured to flow between the liquid chamber and the liquid supply section, and that is coupled, in the attached state, to the liquid chamber at a position above a coupling position between the liquid-communication flow path and the liquid chamber, wherein the liquid-communication flow path has, in a liquid flow direction from the liquid chamber toward the liquid ejecting head, an upstream end coupled to the liquid chamber, an upward flow path located downstream of the upstream end and extending upward in the attached state, a downward flow path located downstream of the upward flow path and extending downward in the attached state, and a downstream end located downstream of the downward flow path and coupled to the liquid supply section and the air-communication flow path, and the liquid-communication flow path has, at an intermediate position of the liquid-communication flow path, a narrow portion in which a sectional area of the liquid-communication flow path is small. 2 . The liquid tank according to claim 1 , wherein the narrow portion is formed such that the sectional area gradually changes. 3 . The liquid tank according to claim 1 , wherein the narrow portion is provided upstream of the downstream end. 4 . The liquid tank according to claim 3 , wherein the narrow portion is disposed between the upward flow path and the downward flow path. 5 . The liquid tank according to claim 3 , wherein the narrow portion is formed such that the sectional area gradually decreases from the upstream end toward an upper end of the upward flow path and such that the sectional area gradually decreases from the downstream end toward an upper end of the downward flow path. 6 . A liquid ejecting apparatus comprising: the liquid tank according to claim 1 ; and a liquid ejecting head that ejects liquid supplied from the liquid tank.
Assignees
Inventors
Classifications
Ink supply systems {; Circuit parts therefor} · CPC title
Ink connection · CPC title
Outer structure · CPC title
- B41J2/17513Primary
Inner structure · CPC title
Mounting within the printer · CPC title
Patent family
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2022055370A1 cover?
- A liquid tank includes: a liquid supply section; a liquid chamber; a liquid-communication flow path an air-communication flow path. The liquid-communication flow path has, in a liquid flow direction from the liquid chamber toward the liquid ejecting head: an upstream end coupled to the liquid chamber; an upward flow path located downstream of the upstream end and extending upward in the attache…
- Who is the assignee on this patent?
- Seiko Epson Corp
- What technology area does this patent fall under?
- Primary CPC classification B41J2/17513. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Feb 24 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).