Abstract: Method and mold for producing air ducts (P) from plastic material, especially soft plastic material, with a hardness of between Shore 5 and Shore 65, of the type comprising a hollow main body (P1) provided with at least one protuberance or nipple (P2) that projects from the exterior wall of the main body (P1), the method comprising the steps of injection-molding at least one nipple (P2) from plastic material inside a first cavity (1) of a mold (M); interconnecting the first cavity (1) with a second cavity (3) arranged in the same mold (M) and located adjacent to said first cavity (1), in order to form a single volume; and blow-molding a hollow body from a moldable plastic-material parison inside the second cavity (3).

Abstract: Method and mould for producing air ducts (P) from plastic material, especially soft plastic material, with a hardness of between Shore 5 and Shore 65, of the type comprising a hollow main body (P1) provided with at least one protuberance or nipple (P2) that projects from the exterior wall of the main body (P1), the method comprising the steps of injection-moulding at least one nipple (P2) from plastic material inside a first cavity (1) of a mould (M); interconnecting the first cavity (1) with a second cavity (3) arranged in the same mould (M) and located adjacent to said first cavity (1), in order to form a single volume; and blow-moulding a hollow body from a mouldable plastic-material parison inside the second cavity (3).

Abstract: A filter for Diesel engine fuel, comprising a filtering mass which is contained within an enclosure and is provided so as to be crossed by the fuel in its path inside the filter between an intake connector and a discharge connector. The enclosure comprises a water collection chamber at its bottom. The filter further comprises at least two micromeshes which are adapted to be crossed sequentially by the fuel that exits from the filtering mass.

Abstract: A filtering mass in sheet form for an air filter for an enclosed space, particularly a motor vehicle cabin, comprising elements made of standard-type materials normally used to form filtering masses and carbon elements rendered active in the adsorption of gaseous substances.