US PATENT SUBCLASS 493 / 163
.~.~.~ By mandrel on endless carrier

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}
162  DF  .~.~ Folding {7}
163.~.~.~ By mandrel on endless carrier {1}
164  DF  .~.~.~.~> Assembly of plural mandrels turning about fixed axis {2}

DEFINITION

Classification: 493/163

By mandrel or endless carrier:

(under subclass 162) Method or apparatus including use of a male forming member about which a sheet or web workpiece is wrapped by bending stress without thrust of the forming member, which forming member is mounted on a support member

to be indexed or continuously moved about a closed loop.