Portable saw chain sharpener
US4319502A · kind A · utility
Inventor
Key dates
| Filing date | Oct 1, 1979 |
| Grant date | Mar 16, 1982 |
| Priority date | — |
| Expiry date | Oct 1, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23D63/166
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A portable saw chain sharpener which permits sharpening of the cutter elements of the saw chain without removal of the saw chain from the saw bar. A frame of the sharpener may be attached to the bar of a chain saw by means of a clamp which is adjustable to properly locate the sharpener with respect to chain saw bars of different thicknesses. A motor-driven rotating abrasive disc is adjustably mounted on a portion of the sharpener which is movable with respect to the frame between positions of engagement and non-engagement with saw chain cutter elements. Adjusting screws are provided to separately control bevel depth and bevel angle and to control the position of each individual cutter during sharpening thereof. A releaseable clamp permits a mounting plate to be rotated with respect to a baseplate to directly adjust abrasive wheel position for sharpening cutters at various hook and between positions for sharpening left-hand cutters and right-hand cutters. The sharpener may be operated by electric power provided by a portable battery pack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.