US PATENT SUBCLASS 493 / 155
.~.~.~.~ Rotary former

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}
154  DF  .~.~.~ By use of conical former (e.g., pleating, etc.) {1}
155.~.~.~.~ Rotary former

DEFINITION

Classification: 493/155

Rotary former:

(under subclass 154) Method or apparatus wherein the member adapted to give its generally circular tapered shape to the receptacle turns about its geometrical axis during such shaping.