Fixed-nib writing instrument with a protective retractable sleeve
US8079767B2 · kind B2 · utility
8Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2007 |
| Grant date | Dec 20, 2011 |
| Priority date | — |
| Expiry date | May 2, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43K24/026
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A fixed-nib writing instrument having a shaft extending along a longitudinal axis (A) and at the front of which a protective sleeve is mounted such that it can move coaxially with respect to the shaft, the sleeve moving between a protecting position in which it covers the writing nib and a retracted position in which it enables writing, the sleeve having a wall section which includes at least one helical guide path in engagement with at least one peg connected to the shaft in order that a rotation of the sleeve causes the latter to slide translationally between the protecting position and the retracted position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.