CHUCK WITH STATIONARY ACTUATOR
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United States of America Patent
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N/A
Issued Date -
Mar 31, 2011
app pub date -
Sep 20, 2010
filing date -
Sep 25, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A chuck has a stationary support and a spindle rotatable in the support and having forward therefrom a forwardly open seat for a workpiece. A plurality of jaws are shiftable in the support to grip or release the workpiece. A pull rod coupled to the jaws projects rearward therefrom and carries a central plate. A rear plate spaced rearward of the central plate is rotationally fixed to the spindle. A push rod axially shiftable in the rear plate has a front end engageable with the central plate and a rear end projecting rearward from the rear plate. A spring braced between the spindle and the central plate urges the central plate rearward. A piston is shiftable in the support between a front position bearing forward opposite to the spring on the push rod and therethrough on the central plate and a rear position spaced rearward of the push rod.
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