|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||451/242; 451/178; 451/278; 451/375; 451/449; 279/060|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 12 인용 특허 : 11|
A precision drill sharpener and grinding wheel assembly is provided, as is a corresponding drill chuck for use with the drill sharpener, in which the drill sharpener includes a lever and spring clip alignment subassembly for properly positioning a drill in the drill chuck, and sharpening ports for sharpening the drill and splitting the drill tip, the sharpening ports being positioned such that a single grinding wheel assembly is used to both sharpen the drill and split the tip. The drill sharpener uses a small diameter grinding wheel operated at high spe...
1. A drill sharpener comprising: a housing; a motor disposed in said housing having a motor-shaft extending therefrom; a grinding wheel assembly comprising a grinding wheel operatively coupled to said motor shaft; a drill mounting chuck; a pair of peripheral cams carried by the barrel portion of the chuck; said housing defining at least one chuck receiving port having a chuck receiving sleeve therein to position the chuck and a drill in operative relation to a grinding surface of the grinding wheel; wherein said grinding wheel is made of steel a...