Crayon sharpener
US7654179B2 · kind B2 · utility
9Cited by
22References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2007 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | May 10, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/04
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A device for sharpening crayons, wax pencils, and the like is provided. This device includes: a multi-blade removable and replaceable crayon sharpening cartridge; an electric motor mechanically coupled to the blade cartridge for axially rotating the blade cartridge around a crayon that has been inserted into the blade cartridge; a base for supporting the electric motor; a contoured receptacle positionable on the base beneath the blade cartridge for capturing crayon debris; and a contoured exterior housing for enclosing the electric motor and the blade cartridge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.