Abrasive sharpener
US8221199B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 26, 2007 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Sep 12, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D15/081
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A pocket abrasive sharpener having a housing formed with a pair of upper slots and a lower open compartment. A pair of abrasive ceramic stones is mounted in one of the slots to form a V-shaped sharpening slot. Each ceramic stone has at least one flat face to abut an adjacent reversed stone to form the V-shaped sharpening slot. The stone has an abrasive cutting edge formed with a radius for sharpening serrated edges and having abrasive surfaces on both sides of the radius. A pair of abrasive blades having V-shaped carbide cutting edges is mounted in the other of the slots to also form a V-shaped sharpening slot. A tapered abrasive rod is pivotally mounted on the housing and is moveable from the compartment to an extended position for sharpening knives and removing pins in certain military and civilian rifles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.