Tiny air-pressure balance device between an ink cartridge and an ink bottle
US7364281B2 · kind B2 · utility
4Cited by
3References
8Claims
0Family size
Inventor
Key dates
| Filing date | Oct 24, 2005 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | Oct 11, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17553
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A tiny air-pressure balance device between an ink cartridge and an ink bottle, in which the ink cartridge is connected with an ink tube extended to one side of the printer; every ink tube is connected with the outlet of the ink bottle; the upper part of the ink bottle is mounted with a balance device, in which a tiny air-pressure check valve is mounted so as to have a tiny air enter for balancing the pressure in the ink bottle upon the printer printing words or drawings, and to prevent the water in the ink bottle from volatilizing away.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.