Round cutter-blade of a paper shredder
US7931224B2 · kind B2 · utility
1Cited by
4References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 3, 2006 |
| Grant date | Apr 26, 2011 |
| Priority date | — |
| Expiry date | Mar 10, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C18/182
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A round cutter-blade of a paper shredder includes a body having a surface, a periphery, and an opening formed therethrough; and at least one triangular shaped knife-edge that is integrally formed with the surface of the body and is turned over the periphery of the body. The cutter-blade can cut broken paper into short fragments, thus raising the secure requirement greatly and reducing the cost due to a reduction of thickness of the round cutter-blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.