Abstract: The present disclosure is concerned with the technical field of marking objects with optically readable codes and reading out (decoding) the codes. Subjects of the present disclosure are a method, a system and a computer program product for decoding optically readable codes introduced in surfaces of objects.

Abstract: An apparatus for generating negative pressure in an installation for filling containers with liquid bulk product includes a vacuum device, and a control-and-regulating unit. The vacuum device has a controllable suction power, and has a plural electrically-powered vacuum pumps. These are configured to operate in parallel. The control-and-regulating unit is configured to control the number of vacuum pumps that are active, thereby controlling the suction power.

Abstract: An apparatus for generating negative pressure in an installation for filling containers with liquid bulk product includes a vacuum device, and a control-and-regulating unit. The vacuum device has a controllable suction power, and has a plural electrically-powered vacuum pumps. These are configured to operate in parallel. The control-and-regulating unit is configured to control the number of vacuum pumps that are active, thereby controlling the suction power.

Abstract: A heat exchanger comprised of individual plates has flow channels operating in parallel flow or counterflow. The flow channels for a first medium are defined between individual plates forming a pair and for the second medium are defined between the pairs that are arranged to form the heat exchanger stack. In order to distribute the inflowing medium within a short axial inflow area over the entire channel width, the individual plates are provided with guiding projections extending at least from one side of the plate into the respective flow channel. In order to improve the heat exchange efficiency, the individual plates have a profiling in the form of a plurality of individual protrusions arranged over the entire channel width and channel length for creating a flow turbulence in the flow channels.