Abrading – Precision device or process - or with condition responsive... – With feeding of tool or work holder
Patent
1997-07-07
1999-08-10
Scherbel, David A.
Abrading
Precision device or process - or with condition responsive...
With feeding of tool or work holder
451282, 451293, 451380, 451387, B24B 904
Patent
active
059349751
ABSTRACT:
A dental curet and sharpening machine system has been developed for convenient, accurate, and rapid sharpening of dental curets. Curets comprising a cutting blade, shank, and handle have been designed so that, regardless of the instrument's rake angle, the arc center of the toe on the face of the cutting blade which is to be sharpened lies on the longitudinal center axis of the instrument and at a constant distance from reference means on the instrument handle. The sharpening machine comprises a base, a sharpening element, and an instrument guide unit. The instrument guide unit can position the blade face of a curet of any rake angle in a plane with the arc center of the toe on the blade's face coincident with an axis about which the guide unit can be swung while the blade is engaged with the sharpening element during the cutting procedure. The invention comprises three aspects: (1) the curets; (2) the sharpening machine; and (3) the method of sharpening the curets.
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McDonald Shantese
Scherbel David A.
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