PIPE THREADED JOINT Russian patent published in 2007 - IPC F16L1/00 

FIELD: pipeline engineering.

SUBSTANCE: pipe threaded joint comprises outer and inner threads. In the vicinity to the free end of the female member there is a ring socket that receives a deformable sealing ring that tightly abuts against the peripheral surface of the socket and the output turns of the outer thread. The sealing ring bears on the collar that faces the free end. The deformable sealing ring embraces the outer thread. The free end of the male member is set in the sealing ring, and the outer thread is screwed into the inner thread.

EFFECT: enhanced reliability.

2 cl, 8 dwg