Abstract: A hand towel dispenser capable of data capture and transmission. The hand towel dispenser includes a reel shell for holding a hand towel roll that includes fresh dispenser material, a rotatably held reel that takes up used dispenser material, a measuring apparatus for capturing measured values that represent the quantity of used dispenser material, and a radio module that is connected to the measuring apparatus to receive the measured values captured by the measuring apparatus. The radio module is designed to transmit radio signals, each of which contains at least one measured value. The measuring apparatus includes at least one first sensor for capturing the quantity of used dispenser material. And, the sensor is connected to the radio module.

Abstract: A valve for opening and closing a liquid vessel or pouch, which includes a valve body having a central axis, top and bottom sides arranged transversely with respect to the central axis, and a passage opening that extends through the valve body coaxially from the top side to the bottom side. A closure element can be pressed into the passage opening by a spring element coaxially with respect to the central axis from the underside such that the passage opening can be closed in a liquid-tight manner. The closure element includes a first sealing lip which can be pressed into the passage opening with an interference fit P1 and, axially behind said first sealing lip, a second sealing lip, which can be pressed into the passage opening with an interference fit P2, wherein P2 is a stronger interference fit than P1.

Abstract: A hand towel dispenser capable of data capture and transmission. The hand towel dispenser includes a reel shell for holding a hand towel roll that includes fresh dispenser material, a rotatably held reel that takes up used dispenser material, a measuring apparatus for capturing measured values that represent the quantity of used dispenser material, and a radio module that is connected to the measuring apparatus to receive the measured values captured by the measuring apparatus. The radio module is designed to transmit radio signals, each of which contains at least one measured value. The measuring apparatus incoudes at least one first sensor for capturing the quantity of used dispenser material. And, the sensor is connected to the radio module.

Abstract: A valve for opening and closing a liquid vessel or pouch, which includes a valve body having a central axis, top and bottom sides arranged transversely with respect to the central axis, and a passage opening that extends through the valve body coaxially from the top side to the bottom side. A closure element can be pressed into the passage opening by a spring element coaxially with respect to the central axis from the underside such that the passage opening can be closed in a liquid-tight manner. The closure element includes a first sealing lip which can be pressed into the passage opening with an interference fit P1 and, axially behind said first sealing lip, a second sealing lip, which can be pressed into the passage opening with an interference fit P2, wherein P2 is a stronger interference fit than P1.