Fixture and device for controlled scissor sharpening
US5941763A · kind A · utility
Inventor
Key dates
| Filing date | Apr 8, 1997 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Apr 8, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B41/066
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A fixture for controllably holding a blade and particularly a scissor or scissor element for precise sharpening and shaping including hollow grind and clamshell (convex) sharpening. The fixture comprises an articulable holding arm with at least two movable joints and an extension portion swivelly attached to one of the joints. The extension portion terminates in a holding member for the scissor or scissor element which holding member is freely concentrically rotatable relative to the longitudinal extension axis of the extension portion. The holding member comprises a clamping element for holding the scissor element parallel to the longitudinal extension axis. The extension portion further comprises a position adjustable stop to limit rotation of the holding member to provide a precise angular holding of the scissor element relative to an adjacent sharpening element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.