Flanged repair coupling for pipe line service

Details Flanged repair coupling for pipe line service Flanged repair coupling for pipe line service

1987-06-01

1989-04-18

Arola, Dave W.

Pipe joints or couplings

Frangible element

285 15, 285323, 285363, 285175, F16L 3500

Patent

active

048220752

ABSTRACT:
A flanged coupling for the repair of pipelines and risers, especially for sub-marine repair and construction, and of unit configuration engageable over a first open pipe section and its flange to seal with a flange of a second open pipe section, and having a piston actuated by drawing said two flanges together and a shear member sequentially controlling operation of a slip and a packing to anchor and seal the coupling unit to the first pipe section operating a slip and a packing to anchor and seal the coupling unit to the first pipe section.

REFERENCES:
patent: 4006921 (1977-02-01), Mohn
patent: 4049297 (1977-09-01), Reneau
patent: 4138147 (1979-02-01), Manchester et al.
patent: 4239266 (1980-12-01), Mynhier
patent: 4330143 (1982-05-01), Reneau
patent: 4413845 (1983-11-01), Lawrence
patent: 4613160 (1986-09-01), Reneau
Hydro Tech.
Grippers Inc.

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