Writing instrument with a locking device
US10967668B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 18, 2018 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Apr 18, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43K24/086
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A manual device including a first portion and a second portion. The second portion being at least partially fitted into the first portion and being moveable in translation relative to the first portion. The first portion having a first distal end while the second portion has a second distal end opposite the first distal end. The second portion also includes a locking device designed to prevent the first portion from moving in translation relative to the second portion only when, considered in the direction of gravity. The first distal end is arranged above the second distal end, and the locking device includes a chamber and a ball or equivalent accommodated in the chamber. The chamber is provided only in the second portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.