Portable drill sharpener

Details Portable drill sharpener Portable drill sharpener

2006-10-17

2006-10-17

Ackun, Jr., Jacob K. (Department: 3723)

Abrading

Machine

Rotary tool

C451S231000, C451S375000, C451S349000

Reexamination Certificate

active

07121932

ABSTRACT:
A portable drill sharpener includes a casing, a sand-wheel, a positioning device, a first grinding unit and a second grinding unit, a holding member for positioning a drill to be ground, a first adjustment unit and a second adjustment unit respectively connected to the first and second grinding units. Each of the first and second adjustment unit includes a guide rail and a sliding frame is movably mounted on the guide rail. The fist and second grinding units have at least one axle along which the first and second grinding units are adjusted.

REFERENCES:
patent: 5311703 (1994-05-01), Ketteringham
patent: 5649853 (1997-07-01), Kuo
patent: 6071181 (2000-06-01), Wightman et al.
patent: 6113477 (2000-09-01), Arai
patent: 6652367 (2003-11-01), Lin
patent: 6676500 (2004-01-01), Lin

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