Ink delivery system
US10245877B2 · kind B2 · utility
0Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2017 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | May 24, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43K5/1827
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Delivery systems for delivering compositions with large particles are disclosed herein. For example, writing instrument capable of delivering ink with large pigment particles can include a barrel, an ink reservoir in fluid communication with a nib, and one or more valves or seals for sealing the reservoir when not in use. For example, the writing instrument can include a free-ink reservoir having an agitator disposed on a valve stem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.