1976-05-17
1977-09-06
Peshock, Robert
A61C 1312
Patent
active
040458741
ABSTRACT:
A drill guide attachment for dental drill handpieces and the like includes a first sleeve, and attachment means adjacent one end of the first sleeve for securing it to a dental drill positioned therein. A second sleeve is in telescoping, coaxial, sliding relation with the first sleeve and positioned adjacent the other end of the first sleeve, the sleeves being adapted for bidirectional, limited axial motion relative to each other. The second sleeve has an outer end defining a flat surface occupying a plane transverse to the major axis of the second sleeve, so that positioning of the flat surface against a work piece simultaneously positions the drill in the sleeves in a predetermined manner relative to the workpiece. The second sleeve can define aperture means for viewing the contact point between a drill positioned in the sleeves and a work piece during the drilling operation. Also, the guide attachment of this invention can be attached to the dental drill by a split ring which is forced by bevelled surface means to collapse inwardly into tight, frictional retaining contact with the housing of a drill positioned within the guide attachment.
REFERENCES:
patent: 2409377 (1946-10-01), Miller
patent: 2792726 (1957-05-01), Vick
patent: 3620635 (1971-11-01), DalBianco
Ellis Garrettson
Peshock Robert
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