Bit sharpener

Details Bit sharpener Bit sharpener

1996-08-13

1997-10-14

Rose, Robert A.

Abrading

Frame or mount

Portable abrader

451349, 451375, 451549, B24B 2708

Patent

active

056765916

ABSTRACT:
A bit sharpener includes a casing with a front plate having a first tube extending therefrom and a rear plate with a plurality of first holes defined therein, the rear plate having a first tubular member and a first rod centrally extending from an inner side thereof such that a guide plate is mounted to the first tubular member and a grinding member is mounted to the guide plate, a rotating member connected to the grinding member and receiving the first rod therein with two springs disposed between the grinding member, the first rod and an inner side of a front end of the rotating member, the front end of the rotating member having a cone-shaped recess defined in a front side thereof for jaws of a hand drill inserted therein to rotate the rotating member and the grinding member such that when a bit is inserted through the first hole and the vent, the bit is ground by the grinding member.

REFERENCES:
patent: 3757320 (1973-09-01), Wurscher
patent: 3803771 (1974-04-01), Bunn
patent: 4069619 (1978-01-01), Escamiila
patent: 4858389 (1989-08-01), Wurscher
patent: 5210977 (1993-05-01), Werner

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