Micro motion poppet valve assembly for delivery of ink with large pigment particles to a writing nib and writing instrument comprising same
US9050850B2 · kind B2 · utility
6Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2011 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Oct 20, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43K5/1845
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A micro motion poppet valve for a writing instrument provides delivery of ink with large pigment particles to a porous writing nib with minimal nib movement and relatively light actuation forces. The micro motion poppet valve includes a nib connected to a valve stem, the valve stem being connected to a valve plug. A valve body is integrally formed with a biasing element, which biases the valve stem towards a closed position. When a user presses the nib against a writing surface the valve plug moves away from a raised valve seat located on the biasing element to allow ink to flow from an ink reservoir to the nib.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.