Union for tubes having a smooth end

Details Union for tubes having a smooth end Union for tubes having a smooth end

1979-08-15

1981-03-17

Callaghan, Thomas F.

Pipe joints or couplings

Nonmetal to metal

Internal member

285343, F16L 1900, F16L 3320

Patent

active

042563348

ABSTRACT:
The invention relates to unions for tubes adapted to hermetically connect a smooth end of a tube on a connecting piece comprising a flared end. These unions comprise an anchoring and sealing ring which is constituted by an annular lip incorporated in the body of the union and which presents, in its rear part, at least one peripheral recess which is adapted to facilitate the flexion of the lip towards the axis.

REFERENCES:
patent: 2179127 (1939-11-01), Lauer
patent: 2738994 (1956-03-01), Kreidel et al.
patent: 3006558 (1961-10-01), Jacobs
patent: 3195933 (1965-07-01), Jacobs
patent: 3325192 (1967-06-01), Sullivan
patent: 3977708 (1976-08-01), Jopp
patent: 4133312 (1979-01-01), Burd

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