US PATENT SUBCLASS 493 / 315
.~.~ Orbital movement of work contacting vacuum applying means

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

309  DF  CONTAINER OR TUBE ERECTING, OPENING, OR COLLAPSING {5}
313  DF  .~ By direct application of vacuum or fluid pressure {3}
315.~.~ Orbital movement of work contacting vacuum applying means

DEFINITION

Classification: 493/315

Orbital movement of work contacting vacuum applying means:

(under subclass 313) Method or apparatus including structure to engage the sheet or web workpiece and encircle the area from which atmospheric pressure is removed, which structure is adapted to move in a closed loop path.