Knife sharper having cutting edge protective structure
US6932683B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jun 24, 2003 |
| Grant date | Aug 23, 2005 |
| Priority date | — |
| Expiry date | May 2, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B41/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A knife sharpener includes a housing having one or more access slots for receiving knife blades to be sharpened, one or more grinding wheels rotatably received in the housing and disposed close to the access slots of the housing for grinding and sharpening the cutting edges of the knife blades. The housing includes one or more openings formed in either or both of the end portions of the access slot of the housing and communicating with the access slot of the housing, and having a width greater than that of the end portions of the access slot of the housing, for receiving and preventing the cutting edge of the knife blade from being blunted by the housing after sharpened by the grinding wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.