Closure devices
US10926547B2 · kind B2 · utility
0Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2017 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Apr 24, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17559
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In an example, there is provided a closure device. The closure device comprises an air-permeable and ink-impermeable membrane to prevent ink egress from a refillable ink tank of a printer. The membrane has an ink tank side and an air side. The closure device also comprises a tortuous air flow path connecting the air side of the membrane to an exterior of the ink tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.