Vent for an ink-jet print cartridge
US6457819B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 9, 2001 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Aug 9, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17556
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink-jet print cartridge includes a body with a lid. The body defines a vent structure communicating between ambient and an ink reservoir internally of the body. One embodiment of the vent structure includes a straight cylindrical bore opening through the lid of the print cartridge body between ambient and the ink reservoir. This vent structure includes a tapered annular surface surrounding the opening of the straight cylindrical bore on a surface of the lid, so as to direct ink away from the opening of the bore. An annular ink well surrounds the tapered annular surface so as to catch and hold ink flowing along this surface away from the opening of the straight cylindrical bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.