Combination blade sharpener and curved or straight edge blade
US6572448B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 5, 2002 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Apr 5, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B3/365
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A blade sharpener comprises a work surface consisting of a single support line. A grinding wheel defines a transverse plane that contains the support line. The grinding wheel is swingable in the transverse plane to a selected position relative to the support line. A blade is supported on the support line with the blade cutting edge perpendicular to the support line. The single support line enables a mulching blade to be sharpened without having to impart angular motions in space to it as it is fed past the grinding wheel. Swinging the grinding wheel to different positions relative to the support line enables it to produce different cutting surfaces on the blades. Swinging of the grinding wheel is achieved by mounting it to a plate that pivots about an axis perpendicular to the grinding wheel transverse plane. A mobile work table is selectively retainable over and removable from the support line support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.