CLAMPING RING Russian patent published in 2001 - IPC

FIELD: connection facilities. SUBSTANCE: clamping ring has the first twisted metal strip-like part 10 called "internal" part which has two radial folds forming projection 16 near one of its ends 10a. Clamping ring is also provided with the second strip-like part 13 called "external" part which is secured to external surface of internal part 10 at its first end 12a and has fold 20 responsible for elasticity margin. At its other end 12b external part is fitted with hook 18 intended for engagement with rear side of projection 16 when ting is squeezed. "Intermediate" section 22 is located between fold 20 and hook 18. The section passes mainly along periphery of internal part 10 which due to this has covered zone 24 overlapped by the intermediate section 22 neat its other end. Intermediate section 22 of external part 12 and covered zone 24 of internal part 10 contain the first and second stopping facilities capable of interaction with each other which makes it possible to determine limit of use of elasticity margin. EFFECT: enhanced reliability. 5 cl, 6 dwg