US PATENT SUBCLASS 493 / 159
.~.~.~.~ By relative rotation of work and tool about work axis

Current as of: June, 1999
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493 /   HD   MANUFACTURING CONTAINER OR TUBE FROM PAPER; OR OTHER MANUFACTURING FROM A SHEET OR WEB

51  DF  CONTAINER MAKING {2}
52  DF  .~ Rigid container (e.g., box, carton, cap, cup, etc.) {10}
152  DF  .~.~ Nonrectangular cross section container {4}
158  DF  .~.~.~ Edge crimping or curling {1}
159.~.~.~.~ By relative rotation of work and tool about work axis

DEFINITION

Classification: 493/159

By relative rotation of work and tool about work axis:

(under subclass 158) Method or apparatus including (a) turning a workpiece about an axis passing generally through its center for engagement by a tool that is not turning about the axis, or (b) turning a tool about an axis passing generally through the center of a workpiece for engagement with a workpiece that is not turning about that axis.