Pipe joints or couplings – Ball and socket – Radially spaced spherical surfaces
Patent
1982-09-23
1984-12-25
Scanlan, Jr., Richard J.
Pipe joints or couplings
Ball and socket
Radially spaced spherical surfaces
285 95, 285223, 285268, F16L 2704, F16L 1700
Patent
active
044899629
ABSTRACT:
A flexible joint for deep-sea oil installations.
This joint combines the two parts of a swivel joint, consisting of a spherical ring-shaped male adapter and a spherical ring-shaped female adapter, by using means of connection comprising a plurality of identical resilient devices, positioned in even numbers in two crowns, the far ends of these devices resting on two ring-shaped end-plates, the upper end-plate being integral and coaxial with the male adapter, and the lower end-plate being connected to the upper end-plate by a system that also attaches it coaxially to the male adapter, and the close ends of the resilient devices resting, by means of thrust-plates, either on one of two opposed shoulders associated to the male adapter, equidistant from the end-plates on which the far ends of the two crowns rest, or on one face of a ring-shaped flange integral and coaxial with the female adapter.
Prestressing of the resilient devices makes this joint particularly suitable for use with riser pipes.
REFERENCES:
patent: 1917742 (1933-07-01), Tinsley
patent: 3168334 (1965-02-01), Johnson
patent: 3392995 (1968-07-01), Swerdfeger
patent: 3433504 (1969-03-01), Hanes et al.
patent: 3477748 (1969-11-01), Tinsley
patent: 3746372 (1973-07-01), Hynes et al.
patent: 4068868 (1978-01-01), Ohrt
patent: 4076284 (1978-02-01), Herbert et al.
Caumont Jean-Paul
Schawann Jean-Claude
Scanlan, Jr. Richard J.
Societe Nationale Elf Aquitaine (Production)
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