Writing instrument with eraser protected by a sleeve
US8915663B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2009 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | Feb 13, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43K21/003
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A writing instrument that includes a shaft and an eraser exit device. The eraser exit device includes an eraser protection sleeve that is mobile at least in rotation relative to the shaft so that the eraser can assume a maximum exit configuration and a retraction configuration, and an eraser holder provided with at least a first longitudinal guiding member directly interacting with a first complementary guiding member connected to the shaft so as to prevent any rotation movement between the holder and the shaft, and provided with at least a second guiding member that interacts with a second complementary guiding member connected to the sleeve. The sleeve has a front portion surrounding the rear end of the shaft and a rear portion having an inner guiding portion including the second complementary guiding member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.