Conical point sharpener

Details Conical point sharpener Conical point sharpener

2007-02-27

2007-02-27

Nguyen, Dung Van (Department: 3723)

Abrading

Work holder

Clamp

C451S404000, C451S555000, C451S558000

Reexamination Certificate

active

11442466

ABSTRACT:
A conical point sharpener for sharpening conical shaped points such as fishhooks, needles, surgical instruments includes a handle, a mandril with an abrasive material coating fixed to one end of said handle, a drive spindle, wherein said drive spindle is movably attached to said handle and envelops said mandril, an outwardly protruding tapered opening on said drive spindle, and a precision point alignment nest, formed between said abrasive material coating on said mandril and said drive spindle, such that when the conical point to be sharpened is placed in said outwardly protruding tapered opening of said drive spindle, the item to be sharpened is located in said precision point alignment nest and the point of the item is touching said abrasive material coating on said mandril so that the user can then rotate said drive spindle while holding the item to be sharpened, thereby conically sharpening the point as the item to be sharpened rotates around said mandril.

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patent: 5735071 (1998-04-01), Gouldie
patent: 5967888 (1999-10-01), Lawhun

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