Abstract: A vehicle internal combustion engine exhaust system featuring two different exhaust routes to which the exhaust gas is directed selectively by an on-off device; the system also comprising a device for comparing parameters, consisting in engine speed, the opening angle of the throttle, and the vacuum inside the intake manifold and/or engine load, with respective predetermined values, for opening the on-off device upon the above parameters reaching the aforementioned predetermined values, and so selectively enabling the exhaust gas to flow along both the exhaust routes.

Abstract: A system for compacting and storing separately recyclable and nonrecyclable waste materials. The system includes two separate storage and compacting units, one of which is designated for the storage of recyclable material and the other designated for the storage of nonrecyclable material. The system further includes a rack structure having a substantially horizontally extending platform and a plurality of support legs extending downwardly from the substantially horizontally extending platform. The support legs and platform form a passageway or channel for receiving at least a portion of one storage and compacting unit. The other storage and compacting unit is mounted on the substantially horizontally extending platform of the rack directly above the first compacting and storage unit.