Liquid ejecting apparatus
US8840049B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2010 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | Aug 8, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B1/3013
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A liquid ejecting apparatus having a storage portion (20) for storing a treatment liquid, a slit-shaped opening portion (41) for ejecting the treatment liquid, and a connecting passage (42) that has a slit-shaped cross-section and connects the storage portion (20) to the slit-shaped opening portion (41) includes: a valve body portion (50) that is provided in the storage portion (20) to cover the connecting passage (42), and forms a gap (22) together with a lower wall (43) of the storage portion (20) so that the treatment liquid is caused to flow into the connecting passage (42) through the gap (22); a first curved surface portion (44a) that smoothly connects a surface of the lower wall (43) of the storage portion (20) to an inner wall surface (42a) of the connecting passage (42); and a second curved surface portion (51a) that is provided on the valve body portion (50) so as to project to an identical side to the first curved surface portion (44a). With this constitution, air bubbles can be prevented from intermixing with the treatment liquid ejected from the slit-shaped opening portion (41).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.