Semipermeable membrane for an ink reservoir and method of attaching the same
US7159974B2 · kind B2 · utility
7Cited by
38References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2003 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Aug 13, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17513
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An inkjet assembly comprising a vented ink reservoir for containing a liquid ink therein, the vented ink reservoir defining an internal volume occupied at least in part by a semipermeable membrane in fluid communication with a vent that automatically adjusts for pressure differentials by enabling gaseous diffusion between an environment external to the vented ink reservoir and the internal volume of the vented ink reservoir, while inhibiting liquid diffusion therethrough. A method is also disclosed for mounting the semipermeable membrane to at least one of an ink reservoir cap and an ink tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.