Universal sharpening jig for a cutting blade
US9221144B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Dec 23, 2013 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Sep 4, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D15/06
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A universal sharpening jig for a cutting blade includes a base plate, a protractor plate coupled to the base plate, an incline plate hingedly coupled to the base plate and slideably connected to the protractor plate, the incline plate configured to secure the cutting blade and configured to set and fix the angle of the incline plate with respect to the base plate to define a sharpening angle of all or a portion of a bevel with respect to a flat back of the cutting blade. A push plate is slideably attached proximate a front of the base plate and co-planar with a bottom surface of the base plate, the push plate configured to position a user-applied force vector thereon and directly apply the force vector closely proximate the intersection of the bevel and an abrasive surface to reduce de-stabilizing moments and user energy need to create a sharpened edge between the bevel and the flat back of the cutting blade. At least one glide located proximate back of the base plate is configured to longitudinally and/or laterally level the base plate with respect to a level abrasive surface to allow movement of the jig in all horizontal directions by a user to create the sharpened edge on the cu…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.