US 12,722,253 B2Granted

Tool sharpening system

OwnerDavid Morozinventor

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Abstract

An angle reference block including a series of angled end surfaces. Slots disposed in the body of said angle reference block, wherein each of said slots includes a stop member that extends upward from a bottom of the slot a given distance that is associated with a specific angle set point. A key being receivable in said slots to adjust the angle associated with said angled end surfaces, wherein each said slot designates a predefine angle for adjusting the angled end surfaces to a desired set angle when said key is disposed in a given said slot and placed on a level surface. A honing guide having a housing that rotatably carries a roller member. A flat top surface disposed on a top side of said housing. A gripping material disposed on said flat top surface for receiving and resisting movement of a blade disposed against said flat top surface.

Claims20

Dependent claims

A tool sharpening system comprising:

a sharpening stone having a level surface;
an angle reference block including a series of angled end surfaces;
a series of slots disposed in a body of said angle reference block, wherein each of said slots includes a stop member that extends upward from a bottom of the slot a given distance that is associated with a specific angle set point;
a key being receivable in said slots to adjust the angle associated with said angled end surfaces, wherein each said slot designates a predefined angle for adjusting the angled end surfaces to a desired set angle when said key is disposed in a given said slot and placed on the level surface of the sharpening stone;
a honing guide having a housing that rotatably carries a roller member;
a flat top surface disposed on a top side of said housing;
a gripping material disposed on said flat top surface for receiving and resisting movement of a blade of a hand tool disposed against said flat top surface;
whereby the blade of the hand tool is positionable against said angled end surfaces of said angle reference block while disposed on said flat top surface of said honing guide to set a sharpening angle, and said honing guide with said blade is then movable on the level surface of the sharpening stone for assisted freehand sharpening of the blade at the set angle.

5 more elements

A honing guide for a tool sharpening system, said honing guide comprising:

a housing having a flat top surface;
a gripping material carried by said flat top surface;
a roller member rotatably carried by said housing;
at least one guide rod opening disposed in said housing and passing completely through said housing;
a clamp removably carried by said housing, said clamp including:
at least one guide rod received in and extending through said at least one guide rod opening, wherein said guide rod extends laterally outward from said housing below said flat top surface;
a first clamping arm carried by said at least one guide rod on a first side of said housing and movable along said guide rod;
a second clamping arm carried by said at least one guide rod on a second side of said housing opposite said first side and movable along said guide rod;
said first and the second clamping arms each including a securing arm portion extending at an inclined upward angle above a horizontal plane of said flat top surface;
whereby a tool blade is receivable against said gripping material of said flat top surface and said clamping arms are movable along said guide rod to engage said tool blade and press said tool blade downward against said gripping material on said flat top surface of said housing.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/652,178Filed 1 May 2024 · us provisional application
Priority: 4 May 2023
Published: US 2024/0367291 A17 Nov 2024
Granted: 1 Sep 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

B24D 15/08
Specially designed for sharpening cutting edges: of knives; of razors
B24D 15/06
Hand tools or other devices for non-rotary grinding, polishing, or stropping: specially designed for sharpening cutting edges
B24D
Tools for grinding, buffing or sharpening