Multi-functional shredder
US6983903B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 2003 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | May 21, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C2018/0015
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present application discloses a multi-functional shredder that is capable of effectively destroying both paper documents and rigid/semi-rigid objects, such as CDs or DVDs. This multifunctional shredder comprises a housing; a drive system including at least one motor; and at least two shafts rotatably mounted within the housing and coupled to the drive system to enable the drive system to counter-drive the shafts in respective opposing rotational cutting directions. Each of the shafts includes positive cutter elements and negative cutter elements, configured to cooperate to shred articles as the shafts are rotationally counter-driven by the drive system in the respective rotational cutting directions thereof. The positive cutting elements on each shaft have positive cutting parts angled in the respective rotational cutting directions of the shafts, and the negative cutting elements on each shaft have negative cutting parts angled opposite the respective rotational cutting directions of the shafts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.