发明名称 AIRTIGHT JOINING SYSTEM FOR METAL TUBES AND PREFABRICATED MODULAR CONDUITS
摘要 The invention relates to a system of connecting modular conduits without the need for complementary synthetic gaskets, by producing a metal/metal adjustment such that the modules remain joined with the initial application of a light compression stress. For this purpose, one end of the module takes a non-cylindrical form comprising a minimal gradual variation in the diameter over the length in relation to the end of the adjoining module which comprises one or more annular flanges having a curved, polygonal or mixed section, such that one module can be disposed tangentially and in peripheral contact with the wall of the adjoining module. The male end (2) can comprise more than one annular flange (4, 4') in simultaneous contact with the female end (1), said female end being equipped with one ore more conical sections having a straight or curved generatrix (3, 3') which are adjusted to the respective annular flanges (4, 4'). According to the invention, the same function is performed if the female end (1) comprises the aforementioned annular flanges (4, 4') and the male end (2) is equipped with the straight or curved generatrix adjustment sections (6, 6'). Moreover, both the male end (9) and the female end (8) of the connection can comprise one or more reciprocal annular flanges (4, 4') which come into contact with the respective adjustment sections.
申请公布号 EA006572(B1) 申请公布日期 2006.02.24
申请号 EA20040001477 申请日期 2003.03.20
申请人 DINAK C.A. 发明人 PEREIRO SANTOS JUAN RAMON
分类号 E04F17/02;F16L25/00;F16L25/10;F23J13/04 主分类号 E04F17/02
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