NON-DETACHABLE JOINT Russian patent published in 2001 - IPC

FIELD: connection devices, possibly for non-detachable joining of polymeric tubes with annular parts and radial fastening members. SUBSTANCE: non-detachable joint includes tube of composition material, metallic ring embracing tube and radial fastening pointed members. Metallic ring is provided with two cylindrical lands on its end portions and with 1-3 annular rows of radial fastening pointed members in each land. Outer threaded land is arranged between annular rows of radial fastening members mounted in radial openings of metallic ring and fixed in tube material. EFFECT: improved design of joint providing uniform distribution of load at less number of radial fastening members. 2 cl, 5 dwg