US PATENT SUBCLASS 493 / 258
.~.~.~.~.~ And having side fold gripper

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}
186  DF  .~ Pliable container (e.g., bag, envelope, etc.) {9}
243  DF  .~.~ Including folding {8}
255  DF  .~.~.~ Tube opening and closing {3}
257  DF  .~.~.~.~ By roller having gripper engaging end edge of tube {1}
258.~.~.~.~.~ And having side fold gripper

DEFINITION

Classification: 493/258

And having side fold gripper:

(under subclass 257) Method or apparatus wherein manipulation of the flattened, cylindrical workpiece is further effected by another member mounted on the turning member serving to squeeze and thereby hold a fold line at the side of the workpiece against the peripheral surface of the turning member.