Paper shredder cutting blade set
US8646714B2 · kind B2 · utility
3Cited by
3References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 18, 2012 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Apr 18, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53422
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A blade set for paper shredders is disclosed. In one embodiment, a notched blade having at least two notches in proximity to a central hole is brought into contact with a mating blade also having a central hole. Force is applied to the mating blade in such a fashion as to displace some of the body of the mating blade into the notches. This acts to substantially secure the blades together. In another embodiment, the notches are disposed on the edge of the blade and through the periphery. In yet another embodiment, one blade can have holes and not notches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.