Liquid tank and manufacture method therefor, ink jet apparatus and manufacture method therefor, and head cartridge and image forming apparatus
US6830321B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2001 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Jun 29, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/10
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid tank according to the present invention comprises negative-pressure introducing sections for introducing negative pressure into the liquid tank, a liquid intake section for taking a liquid in the liquid tank on the basis of the negative pressure introduced by the negative-pressure introducing sections, an atmosphere communication port that is closed when the liquid is introduced through the liquid intake section, and a gas-liquid separating element disposed in the negative-pressure introducing sections so as to pass through only a gas. The gas-liquid separating element has a joined portion formed at least on the outer periphery of the gas-liquid separating element and joined to he negative-pressure introducing sections, and a ventilation area that contributes to ventilation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.