Sharpening tool for pointed objects
OwnerFrancis D. Coushmaninventor
Life of this patent
Estimating the term…
Abstract
A sharpening tool for pointed objects is described. The device is comprised of a cylindrical body with a hole extending part way through it from one end. A slot from the side of the cylindrical body intersects the hole near its bottom. A replaceable sharpening stone fits into the slot and is held in place by a retaining means. A shaft is attached to the end of the cylindrical member opposite the hole for attachment to a power source for rotating the device. An object to be sharpened is inserted into the hole and the device is rotated to sharpen the object.
Claims15
An apparatus for sharpening pointed objects comprising:
- a cylindrical member with first and second ends and cylindrical lateral surface, said cylindrical member containing a round aperture of selected diameter, centered on the longitudinal axis of said cylindrical member, said aperture extending from said first end and ending short of said second end, producing a closed end therein, said cylindrical member containing a slot extending from said cylindrical lateral surface and intersecting a portion of said aperture near said closed end at a selected angle;
- an abrasive member positioned within said slot and extending into said aperture near said closed end;
- adjustable retaining means for retaining said abrasive member in said slot and in contact with an end of a pointed object inserted within said aperture;
- and
- means extending from the second end of said cylindrical member along the longitudinal axis thereof, for attachment of a power source for rotating said apparatus.
An apparatus for sharpening pointed objects comprising:
- a cylindrical member with first and second ends and cylindrical lateral surface, said cylindrical member containing a round aperture of selected diameter, centered on the longitudinal axis of said cylindrical member, said aperture extending from said first end and ending short of said second end, producing a closed end therein, said cylindrical member containing an slot extending from said cylindrical lateral surface and intersecting a portion of said aperture near said closed end at a selected angle, said cylindrical member further modified by removing a section of hemispherical cross section from said cylindrical member, said section extending from said second end of said member up to and intersecting said slot;
- an abrasive member positioned within said slot and extending into said aperture near said closed end;
- adjustable retaining means for retaining said abrasive member in said slot and in contact with an end of a pointed object inserted within said aperture;
- and
- means extending from the second end of said cylindrical member along the longitudinal axis thereof, for attachment of a power source for rotating said apparatus.
Dependencies are inferred from the claim text.