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US 2019/0224801 A1Published application
Knife and tool sharpener
AssigneeEdgecraft Corporation
InventorsBela Elek, Bill Hessler, George Jensen
Life of this patent
Estimating the term…
Abstract
A sharpening tool having a handle having a variable speed switch and a support grip, a removable universal tool adapter rotatably coupled to the handle, a locking feature for locking a position of the removable universal tool adapter, and a motor for driving a tool coupled to the removable universal tool adapter.
Claims21
A sharpening tool comprising:
- a housing;
- a first handle disposed on the housing;
- an electric motor disposed within the housing, the electric motor configured to rotate a driveshaft;
- an electric power input;
- a switch disposed on the housing, the switch selectable to operate the electric motor using the electric power input;
- an accessory attachment point on the housing;
- and
- a sharpening accessory configured to be reversibly coupled to the accessory attachment point, the sharpening accessory coupled the driveshaft to translate rotation of the driveshaft to rotation of a first disk having a first sharpening surface thereon when the sharpening accessory is coupled to the accessory attachment point.
5 more elements
A sharpening tool kit comprising:
- a sharpening tool including:
- a housing;
- a first handle disposed on the housing;
- an electric motor disposed within the housing, the electric motor configured to rotate a driveshaft;
- an electric power input;
- a switch disposed on the housing, the switch selectable to operate the electric motor using the electric power input;
- and
- an accessory attachment point on the housing;
- at least two members of a group consisting of:
- a first sharpening accessory, a second sharpening accessory, and a third sharpening accessory, wherein each sharpening accessory is configured to be reversibly coupled to the accessory attachment point;
- wherein:
- the first sharpening accessory includes:
- a first accessory housing;
- a first translation shaft disposed within the first accessory housing, the first disk coupled to the first translation shaft, the first translation shaft coupled to the driveshaft to translate rotation of the driveshaft to rotation of the first disk when the first sharpening accessory is coupled to the accessory attachment point;
- a first aperture formed in the first accessory housing, a portion of the first sharpening surface of the first disk disposed within the first aperture;
- and
- a first resilient member disposed on the first accessory housing proximate the first aperture, the first resilient member configured to bias a tool edge against the first sharpening surface of the first disk when the tool edge is disposed within the first aperture;
- the second sharpening accessory includes:
- a second accessory housing;
- a second disk having a second sharpening surface thereon;
- a second translation shaft disposed within the second accessory housing, the first disk and the second disk coupled to the second translation shaft, the second translation shaft coupled to the driveshaft to translate rotation of the driveshaft to rotation of the first disk and the second disk when the second sharpening accessory is coupled to the accessory attachment point;
- a first angled notch formed in the second accessory housing, a portion of the first sharpening surface of the first disk disposed within the first angled notch, the first angled notch providing a first bevel angle for a first side of a tool edge disposed therein;
- a second angled notch formed in the second accessory housing, a portion of the second sharpening surface of the second disk disposed within the second angled notch, the second angled notch providing a second bevel angle for a second side of a tool edge disposed therein;
- and
- the third sharpening accessory includes:
- a third accessory housing;
- a chuck, the first disk reversibly coupled to the chuck;
- a third translation shaft disposed within the third accessory housing, the third translation shaft coupling the driveshaft to the chuck to translate rotation of the driveshaft to rotation of the first disk when the third sharpening accessory is coupled to the accessory attachment point.
25 more elements
The sharpening tool kit of claim 21, wherein the kit includes the first sharpening accessory, the second sharpening accessory, and the third sharpening accessory.
Dependencies are inferred from the claim text.