Chuck for tool shanks, particularly screwdriver bits
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United States of America Patent
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-
Dec 16, 1986
Grant Date -
N/A
app pub date -
Aug 20, 1984
filing date -
Aug 24, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A chuck for non-circular ends of tool shanks having a bushing forming a chamber corresponding in cross-section to the tool shank and a ball which acts on the shank and is clamped by a spring biased sleeve which forms a wedge against the ball. The ball is mounted in a separate wing which is engaged by the sleeve and is displaceable relative to the bushing so that the ball engages a clamping surface formed by an end ring and the tool shank in a clamping position.
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