Pressure compensation multi tubular safety joint

Details Pressure compensation multi tubular safety joint Pressure compensation multi tubular safety joint

1983-03-23

1989-11-14

Arola, Dave W.

Pipe joints or couplings

Safety release

With frangible or deformable element

285 29, 285306, 285900, 285920, F16L 3500

Patent

active

048802573

ABSTRACT:
A pressure compensation multi tubular safety joint for use with tubular sections is disclosed wherein a weak link is included that causes the joint to separate under axial load before permanent damage is done to the tubular sections but which compensates for pressure changes in the tubular sections. The joint includes two members, one of which has means for permitting the separation under conditions where the load is only partially axial. The joint further includes means for pre-stressing the joint to relieve the load on the weak link while the joint is lowered into position and further means for relieving the pre-stress through the flowing fluid in the sections.

REFERENCES:
patent: 2649742 (1953-08-01), Armstrong
patent: 4059288 (1977-11-01), Mohn
patent: 4348039 (1982-09-01), Miller
patent: 4361165 (1982-11-01), Flory
patent: 4501287 (1985-02-01), Thomson
patent: 4688827 (1987-08-01), Bassett

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