Abstract: Shown and described is a pouring element for cardboard/plastic composite packagings, which comprises a base provided with an opening with a pouring edge and a peripheral flange, and an opening element as well as a cardboard/plastic composite packaging provided for said pouring element. In order to improve the opening operation of a cardboard/plastic composite packaging provided with such a pouring element without having to forego the advantage of small overall height and in order to minimize the production costs, it is claimed that the opening element, at its front end, comprises a piercing and ripping element which can be folded downwards approximately about 90°, in that the guide has restricted guidance elements for folding the piercing and ripping element and in that the opening element, at its rear end, projects from the base.

Abstract: The data processing circuit has a self-timed instruction execution unit, which operates asynchronously, signalling the completion of processes and starting subsequent processes in response to such signalling. In order to satisfy real time constraints upon program execution ready signals generated after completion of selected instructions are gated with a timer signal before they are used to start a next instruction. In an embodiment, the amount of time left between the ready signal is used to start a next instruction is measured and used to regulate a power supply voltage of the instruction execution unit so that it is just high enough to make the instruction execution unit sufficiently fast to meet the real time constraints.

Abstract: The invention relates to a generic mattress system which is easily adjustable to differing and space varying stresses with limiting spring paths. It has a top mattress and a bottom mattress with supporting elements connected to a frame and located in the plane of a frame. The elements are in U-shape and bear elastic support elements fastened to crosspieces. The upper mattress can also have spring elements between the upper and lower support, with each spring element having a section of elastic material.