The present invention concerns an arrangement for generating a pulsating underpressure in a line 7 intended to be connected to a breathing vest A, which arrangement comprises an underpressure line 6 connected to an underpressure source 1. According to the invention, the arrangement comprises a tube...
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A system for the closed-loop control of a positioning unit in a motor vehicle with the system's loop controller supplying a signal to the positioning unit dependent upon a comparison between a predetermined-value signal and an actual-position signal. The predetermined-value signal depends upon the...