Hydro-expansion chuck
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United States of America Patent
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Feb 14, 2017
Grant Date -
Nov 7, 2013
app pub date -
Apr 9, 2013
filing date -
Apr 13, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention relates to a hydraulic expansion chuck (1) with a hydraulic expansion mechanism (23) that is integrated into a chuck body (10, 20) and exhibits an expansion bushing (23a) with a continuous cylindrical interior wall, and to a reducing bushing (24) arranged in the expansion bushing (23a) for accommodating a shank tool (W), in particular a tap drill. According to the invention, the outer circumference of the reducing bushing (24) is positively connected with the chuck body (10, 20) in a torque-proof manner, and its inner circumference is designed to be positively connected with the shank tool (W) in a torque-proof manner.
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