Ball type bur gripping mechanism for dental handpiece
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United States of America Patent
Stats
-
Mar 11, 1986
Grant Date -
N/A
app pub date -
Nov 21, 1984
filing date -
Nov 21, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dental handpiece head having a bur-gripping mechanism which includes a spring-loaded ball carrier urged by the spring into operative engagement with a tapered ramp which in turn forces the several balls into clamping engagement with the shank of a dental bur positioned in the central bore of the ball carrier. The balls bite into the shank providing positive engagement. Downward force applied to the ball carrier against the spring, by a cam lever or by a pushbutton, releases the engagement.
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Family
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