PIPE JOINT Russian patent published in 1998 - IPC

FIELD: piping systems; connection of pipes without sleeves. SUBSTANCE: pipe joint includes tips of outer and inner pipes inserted one in other. Tip of outer pipe has inner circular groove with sealing member located in it; its base embraces tip of inner pipe. Tip of outer pipe is provided with guide circular clip partially overlapping the circular groove and forming circular recess. Sealing member is secured by front circular band. Sealing member is reinforced over outer surface by means of synthetic threads. It is made from thermally shrinkable elastic-flexible material. Pipes are made from glass-reinforced plastic. EFFECT: enhanced reliability and tightness of pipes. 3 cl, 5 dwg