Liquid ejection apparatus

US9039151B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9039151-B2
Application numberUS-201414322456-A
CountryUS
Kind codeB2
Filing dateJul 2, 2014
Priority dateSep 30, 2013
Publication dateMay 26, 2015
Grant dateMay 26, 2015

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A liquid ejection apparatus includes: a head including: a reservoir tank; an inlet opening; and ejection openings; an air-discharge passage for discharging air from the reservoir tank to an outside; a first sucking device for sucking air from the reservoir tank via the air-discharge passage; a semipermeable membrane dividing a space in the reservoir tank and the air-discharge passage, into a reservoir-tank-side space and a first-sucking-device-side space and allowing communication of the air and inhibiting communication of liquid between the reservoir-tank-side space and the first-sucking-device-side space; and a first valve mechanism dividing the reservoir-tank-side space into a first space on a semipermeable-membrane side and a second space on an inlet-opening side, inhibiting fluid from flowing from the first space to the second space, and allowing fluid to flow from the second space to the first space. The first space is located above the ejection openings.

First claim

Opening claim text (preview).

What is claimed is: 1. A liquid ejection apparatus, comprising: a liquid ejection head comprising: a reservoir tank configured to store liquid; an inlet opening which communicates with the reservoir tank; and a plurality of ejection openings which communicate with the reservoir tank; an air-discharge passage, extending from the reservoir tank, for discharging air in a space in the reservoir tank, to an outside; a first sucking device configured to suck air from the reservoir t…

Assignees

Inventors

Classifications

  • B41J2/19Primary

    Operations & Transport · mapped topic

  • Operations & Transport · mapped topic

  • Operations & Transport · mapped topic

Patent family

Related publications grouped by family.

External sources

Next steps

Free tools are coming soon. Tell us what you want to track and we'll notify you.

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US9039151B2 cover?
A liquid ejection apparatus includes: a head including: a reservoir tank; an inlet opening; and ejection openings; an air-discharge passage for discharging air from the reservoir tank to an outside; a first sucking device for sucking air from the reservoir tank via the air-discharge passage; a semipermeable membrane dividing a space in the reservoir tank and the air-discharge passage, into a re…
Who is the assignee on this patent?
Brother Ind Ltd
What technology area does this patent fall under?
Primary CPC classification B41J2/19. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue May 26 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).