Substrate processing apparatus
US-2015375273-A1 · Dec 31, 2015 · US
Liquid feeding device and method of determining time of exchange of gas control element
US9039149B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9039149-B2 |
| Application number | US-201313760899-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 6, 2013 |
| Priority date | Aug 31, 2010 |
| Publication date | May 26, 2015 |
| Grant date | May 26, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
Ink in an ink tank is fed through a dissolved gas control filter to a printer head. A gas pressure changing mechanism reduces pressure in a gas pressure control tank. In response, the dissolved gas control filter removes gas dissolved in the ink. The gas pressure control tank is placed under pressure corresponding to a sum of the pressure reduced by the gas pressure changing mechanism and the pressure of the gas having been removed from the liquid. A gas pressure measuring part measures the sum of these pressures as pressure in the gas pressure control tank. Then, a controller determines when time of exchange of the dissolved gas control filter has come based on the magnitude of a gradient of gas pressure variation in the gas pressure control tank.
First claim
Opening claim text (preview).
The invention claimed is: 1. A liquid feeding device that feeds liquid through a feeding system to a predetermined mechanism, the liquid feeding device comprising dissolved gas processing part that processes dissolved gas in said liquid, said dissolved gas processing part including: a gas control element provided in said feeding system, the gas control element controlling the amount of gas dissolved in said liquid by using gas pressure acting on the gas control element; a pres…
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Classifications
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
- B01D19/0031Primary
Operations & Transport · mapped topic
- B01D19/0063Primary
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US9039149B2 cover?
- Ink in an ink tank is fed through a dissolved gas control filter to a printer head. A gas pressure changing mechanism reduces pressure in a gas pressure control tank. In response, the dissolved gas control filter removes gas dissolved in the ink. The gas pressure control tank is placed under pressure corresponding to a sum of the pressure reduced by the gas pressure changing mechanism and the p…
- Who is the assignee on this patent?
- Dainippon Screen Mfg, Screen Holdings Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B01D19/0031. 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).