Chuck
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United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
Jul 29, 2011
filing date -
Jun 21, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A chuck includes a cylinder, a ball, two spring-loaded pushers and a spring-loaded sleeve. The cylinder includes a hexagonal pocket axially defined therein, a circular pocket axially defined therein, and an aperture transversely defined therein. The ball is movably located in the aperture so that the ball can be inserted partially in the hexagonal pocket. The first pusher is movably located in the circular pocket for pushing a bit. The second pusher is movably located around the cylinder and abutted against the ball. The sleeve is movably located on the cylinder and formed with first and second annular ribs on an internal side thereof. The first rib is abutted against the second pusher while the second rib is abutted against the ball so that the ball is kept in the aperture while the second pusher is retained around the cylinder.
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