Abstract: A sealing device for sealing equipment elements to workpieces, in particular in the form of a composite laminate, by means of ultrasound, with a sonotrode for generating an ultrasound, with a sealing surface for transmitting the ultrasound to the equipment element and/or the workpiece, with an anvil opposite the sonotrode and with an adjusting device for adjusting the sonotrode. The anvil relative to one another from an open position for at least partial inserting of the equipment element. The workpiece into a sealing gap between the sonotrode and the anvil into a closed position for at least partially pressing the workpiece. The equipment element between the sealing surface of the sonotrode and the anvil during ultrasonic sealing and back.

Abstract: A pack having an opening region provided in the top of the pack which forms a pouring opening after it is cut through by an applied pouring element, the pouring element including a base body, a cutting element arranged movably therein, and a screw cap, the screw cap being used for first opening of the pack by actuating the cutting element and for reclosure, and the opening region having a weakened line. The weakened line has a round first section and a second section. The first time the composite pack is opened by moving the cutting element, the weakened line is cut in the first section and tears in the second section.

Abstract: A pack having an opening region provided in the top of the pack which forms a pouring opening after it is cut through by an applied pouring element, the pouring element including a base body, a cutting element arranged movably therein, and a screw cap, the screw cap being used for first opening of the pack by actuating the cutting element and for reclosure, and the opening region having a weakened line. The weakened line has a round first section and a second section. The first time the composite pack is opened by moving the cutting element, the weakened line is cut in the first section and tears in the second section.