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US 6,186,874 B1Granted
Blade sharpening apparatus
AssigneeSmith Abrasives, Inc.
InventorRichard Smith
Life of this patent
Estimating the term…
Abstract
A blade sharpening apparatus having a hollow housing with an internal drive motor for inducing back and forth movement on a pair of aligned elongated abrasive stones. The abrasive stones are retained by a stone holder and possess a cross section in the form of a equilateral triangle. A slidable guide is slidably mounted on the housing above the pair of abrasive stones. The abrasive stones have a portion of two faces extend through the slidable guide. The slidable guide includes a pair of flat guide surfaces for supporting a blade to be sharpened.
Claims19
A blade sharpening apparatus comprising
- housing, a pair of abrasive stones mounted on said housing for sharpening a blade,
- slideable guide means mounted on said housing adjacent to said pair of abrasive stones, said guide means having a guide surface to angularly orient the blade relative to said guide surface, said slideable guide means being moveable relative to said housing to expose alternately one of said pair of abrasive stones and generally cover the other of said pair of abrasive stones, and
- vibratory means operatively coupled to pair of abrasive stones for moving said pair of abrasive stones relative to said guide surface.
The blade sharpening apparatus according to claim 3 wherein said pair of abrasive stones have triangularly shaped cross sectional configurations.
A blade sharpening apparatus comprising
- housing means, abrasive means mounted on said housing means for sharpening a blade,
- slideable guide means mounted on said housing means adjacent to said abrasive means, said guide means having a guide surface to angularly orient the blade relative to said abrasive means,
- vibratory means operatively coupled to said abrasive means for moving said abrasive means relative to said guide surface, and
- said housing means includes track means for slidably mounting said slideable guide means.
1 more element
A blade sharpening apparatus comprising
- housing means, abrasive means mounted on said housing means for sharpening a blade,
- slideable guide means mounted on said housing means adjacent to said abrasive means, said guide means having a guide surface to angularly orient the blade relative to said abrasive means,
- vibratory means operatively coupled to said abrasive means for moving said abrasive means relative to said guide surface,
- said abrasive means extends upward through said slideable guide means to expose a portion of the abrasive means, said guide surface being positioned adjacent said portion of said abrasive means,
- said slideable guide means includes a pair of flat intersecting surfaces positioned adjacent said exposed portion,
- said slideable guide means includes a pair of inverted U-shaped sections disposed on opposite side of said pair of flat intersecting surfaces,
- said abrasive means includes a pair of elongated abrasive stones having a pair of flat upper surfaces, said pair of flat upper surfaces forming said portion of the abrasive means,
- said pair of abrasive stones have a cross-sectional shape in the form of a equilateral triangle, and
- a stone holder mounted on said housing means for orienting said pair of abrasive stones in alignment along an axis in end to end relationship.
6 more elements
A blade sharpening apparatus comprising
- a housing,
- at least one abrasive element mounted on said housing for sharpening a blade,
- a guide member mounted on said housing adjacent to said at least one abrasive element, said guide means having a guide surface to angularly orient the blade relative to said at least one abrasive element,
- vibratory means operatively coupled to said at least one abrasive stone for moving said abrasive element relative to said guide surface,
- said least one said abrasive element including a cross sectional configuration having a triangular cross sectional configuration forming three generally flat abrasive surfaces extending parallel along an axis, and
- means for adjustably mounting said at least one abrasive element relative to said guide surface for selectively permitting at least one of said three abrasive surfaces to be disposed adjacent the guide surface.
3 more elements
A blade sharpening apparatus comprising
- a housing,
- at least one abrasive element on said housing for sharpening a blade,
- a guide member mounted on said housing adjacent to said at least one abrasive element, said guide member having a guide surface to angularly orient the blade relative to said at least one abrasive element,
- vibratory means operatively coupled to said at least one abrasive element for moving said abrasive element relative to said guide surface,
- said least one said abrasive element including a cross sectional configuration having a triangular cross sectional configuration forming three generally flat abrasive surfaces extending parallel along an axis, and
- means for adjustably mounting said at least one abrasive element relative to said guide surface for selectively permitting at least one of said three abrasive surfaces to be disposed adjacent the guide surface.
3 more elements
Dependencies are inferred from the claim text.