Chuck with improved jaw actuator support structure
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United States of America Patent
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-
Dec 27, 1983
Grant Date -
N/A
app pub date -
Aug 24, 1981
filing date -
Aug 24, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A chuck for heavy duty applications has a plurality of radially slidable jaw mounts each actuated by an L-shaped lever mounted for rocking motion about a supporting trunnion. The levers each have a leg engaging one of the jaw mounts and another engaging an actuator. An external lubricant receiving port is provided adjacent each trunnion and a multiple conduit lubricant distribution system is provided extending through the supporting trunnion and actuating lever. The chuck body also has a lubricant flow channel through which lubricant flows circumferentially of the chuck to assure uniform distribution, eliminating lubricant concentrations and eccentric weight distribution in the chuck.
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