| 摘要 |
PCT No. PCT/SE95/00654 Sec. 371 Date Dec. 6, 1996 Sec. 102(e) Date Dec. 6, 1996 PCT Filed Jun. 6, 1996 PCT Pub. No. WO95/33567 PCT Pub. Date Dec. 14, 1995An insert for air flow ducts includes a band (10) of a semi-stiff, although flexible character, a plurality of interspaced interflanges (11) along the band and spaced edge flanges (14) which are connected with the interflanges, the interflanges in pairs together with the band (10) and the edge flanges (14) delimiting consecutive cavities or pipes (12') along the band, the opposed ends of the cavities or pipes being open, the band being formed into a loop in which the band and the edge flanges are located tightly adjacent to each other and in which the pipes (12') are substantially evenly distributed. |
