Chuck
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United States of America Patent
Stats
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N/A
Issued Date -
Aug 22, 2013
app pub date -
Feb 18, 2012
filing date -
Feb 18, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A chuck includes a shaft, a ring, a ball and an elastic helical ferrule. The shaft includes a cavity defined therein and an aperture in communication with the cavity. The aperture includes a large open end and a small open end. The ring includes a tunnel for receiving the shaft. The ball includes a first portion for insertion in the tunnel via the large open end of the aperture and a second portion for insertion in the cavity via the small open end of the aperture. The elastic helical ferrule includes sections for contact with the ball and sections in contact with the shaft.
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