Abstract: The invention concerns a filtering assembly comprising, firstly, a housing consisting of a case (2) and a lid or filter head (3) sealingly assembled together, secondly, a removable filtering element (4) sealingly connected at one of its ends to the housing, said filtering element (4) consisting of a resistance structure (6) and a filtering material (5) supported on said structure, two cups (7) and (8) being arranged at the ends of said resistance structure, and thirdly, at least one foolproof device comprising a rod (9) integral with the housing (1) and a gap which is provided in the filtering material (6) wherein said rod (9) penetrates (9) when the filtering element (4) is mounted, into at least one cup (7) or (8) an orifice (11) being provided for allowing through said rod (9). The invention is characterized in that it comprises a clogging indicator. The invention is applicable in the field of filtration.

Abstract: The present invention relates to a tape recorder system with a tape recording device and a playback device independently operable in time. The tape recorder system includes a recording sub-assembly provided with a feeding reel and a recording device, and a playback sub-assembly provided with a playback device and a receiving reel. The system according to the present invention also includes a circular intermediate reel between the recording subassembly and the playback sub-assembly, the intermediate reel comprising at its periphery a retractable bearing surface and a drive roller from which the tape is directed towards the playback sub-assembly. The playback subassembly is fastened to the intermediate reel and driven in rotation therewith.