Apparatus for setting up folded cartons

Claim 1

IN PACKAGING APPARATUS HAVING A MAGAZINE FOR CONTAINING A STACK OF FLATTENED CARTONS EACH EXPANDABLE TO FORM AN OPEN-MINDED, SLEEV-LIKE WRAPPER HAVING A PAIR OF SPACED, PARALLEL SIDE PANELS JOINED AT THE UPPER AND LOWER ENDS BY TOP AND BOTTOM PANELS, RESPECTIVELY; A FIRST SUCTION HEAD MOVABLE BETWEEN A FEED POSITION TO ENGAGE THE FLATTENED CARTON AT THE DISCHARGE END OF THE MAGAZINE ADJACENT THE LOWER END OF ONE OF THE SIDE PANELS, AND A LOADING POSITIONIN WHICH IT SUPPORTS THE CARTON AT A CARTON EXPANDING AND LOADING STATION, A SECOND SUCTION HEAD MOUNTED FOR PARALLEL, OSCILLATING MOVEMENT RELATIVE TO THE POSITION OF THE FIRST SUCTION HEAD IN ITS LOADING POSITION BETWEEN A FIRST POSITION IN WHICH IT ENGAGES THE OTHER SIDE PANEL OF THE CARTON ADJACENT ITS UPPER END, AND A SECOND POSITION IN WHICH IT IS DISPOSED IN SPACED, OPPOSED RELATIONSIP RELATIVE TO THE FIRST SUCTION HEAD, SAID FIRST SUCTION HEAD REMAINING STATIONARY IN ITS LOADING POSITION DURING MOVEMENT OF THE SECOND SUCTION HEAD FROM ITS FIRST TO SECOND POSITIONS TO THEREBY EXPAND THE CARTON.