Knife sharpener
US4817480A · kind A · utility
Inventor
Key dates
| Filing date | Aug 10, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Aug 10, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/313
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A knife sharpener includes an abrasive cylinder and a rectangular block for sharpening the opposed portions of a knife edge. The cylinder and block are urged together to form a sharpening notch in which the knife edge is received. The knife sharpener is particularly adapted for food slicing machines. The abrasive cylinder and block are mounted within a housing that is connected to a handle by the neck. The neck may be jointed to enable the housing to be positioned relative to the housing so that a radius of the knife perpendicularly bisects the length of the sharpening notch. The parallel planar surfaces of the handle and housing are aligned for resting against the baseplate of a food slicing machine to align the sharpening notch with the plane of the knife edge. The knife sharpener can thereby be set within the carriage tray, adjusted for proper positioning, and urged forward to receive the knife edge for sharpening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.