Sharpening device
US6875093B2 · kind B2 · utility
54Cited by
13References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2003 |
| Grant date | Apr 5, 2005 |
| Priority date | — |
| Expiry date | Oct 14, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B3/36
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A sharpener includes a motor driven shaft with at least one slidably mounted sharpening assembly consisting of a supporting hub structure mounted by its central bore hole on the shaft. The hub structure supports a symmetrically shaped rotating surface containing an ultra fine abrasive material. The rotating surface is pressed with a force of less than 0.2 lb. by a spring action to make sustained rotating abrading contact with a facet of a knife positioned by a knife guide to align the facet into contact with the surface containing the abrasive materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.