Chuck with helical jaw bite
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 18, 2003
Grant Date -
N/A
app pub date -
Aug 24, 2001
filing date -
Aug 24, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A chuck for use with a manual or powered driver having a rotatable drive shaft includes a generally cylindrical body having a nose section and a tail section. The tail section is configured to rotate with the drive shaft and the nose section has an axial bore formed therein. A plurality of jaws are movably disposed with respect to the body toward and away from the axial bore. Each jaw includes a back surface and a tool engaging surface opposite the back surface. The tool engaging surfaces are disposed facing generally parallel to the axis of the axial bore and a plurality of grinds are defined across each tool engaging surfaces to form a helical pattern on the tool engaging jaw surfaces when the tool engaging surfaces are disposed at a predetermined position with respect to the axis of the axial bore.
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