US Patent 6910314 Random automatic case sealer

A case sealer has a frame with a conveyor for moving boxes into a pair of spaced-apart lateral conveyors. The lateral conveyors have converging centering conveyor belts that center the boxes and first advancing conveyor belts that open to the width of the box to be sealed. A floating head located over the lateral conveyors folds the box end and side flaps into a closed position. The box is then picked up by a pair of second advancing conveyors that adjust to the width of the box. The second advancing conveyors are mounted on a seal dispensing platform carrying a tape dispenser for sealing the box flaps shut.