Dentistry – Apparatus – Having intra-oral dispensing means
Patent
1985-07-12
1987-07-28
Peshock, Robert
Dentistry
Apparatus
Having intra-oral dispensing means
433127, A61C 502
Patent
active
046829490
ABSTRACT:
A tool holder preferably for an ultrasonic endodontic apparatus includes an eccentric member in the holder to secure the butt end of a tool thereon by a camming action during limited rotation of a cam member. The tool holder also includes an irrigating fluid passage located proximate to, but remote from, a tool-receiving bore in the tool holder to direct irrigating fluid onto the tool. An eccentric cam is mounted in a cross-bore within the tool holder, located relative to a tool-receiving bore having a predetermined longitudinal depth, so that a camming action of the eccentric cam longitudinally seats the tool deep in the bore while securing it there by the cam upon limited rotational motion of the cam. The cam includes tool pads for receiving mating surfaces of a bifurcated wrench.
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Dentsply Research & Development Corp.
Peshock Robert
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