Dental instrument sharpening hone

Details Dental instrument sharpening hone Dental instrument sharpening hone

1987-08-31

1989-04-18

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51221BS, 33201, 76 82, 76 88, B24D 1506

Patent

active

048214620

ABSTRACT:
A hone for reconditioning dental instruments of the type having a handle terminating in a blade including a planar portion bordered by a sharp edge is disclosed that is characterized by a planar abrasive surface supported upon a base alongside of which a protractor-like element is mounted for rotation. The protractor-like element displays at least one straight line whose angular relation to the abrasive surface changes as the element rotates along with a plurality of other indicia by means of which the straight line can be set at a particular angle with respect to the abrasive surface that is the same angle that the handle of the instrument to be reconditioned must bear to the latter in order for the planar and sharp edges of its blade to be properly restored as they are moved to and fro across the abrasive surface.

REFERENCES:
patent: 1357753 (1920-11-01), Webster
patent: 1411713 (1922-04-01), Downing
patent: 1605784 (1926-11-01), Schmitt
patent: 2287910 (1942-06-01), Slack
patent: 2578081 (1951-12-01), Miller et al.
patent: 3436872 (1969-04-01), Warren

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