Pipe joints or couplings – With fluid pressure seal – With separate – encased pipe-gripping means
Patent
1985-03-15
1986-11-04
Arola, Dave W.
Pipe joints or couplings
With fluid pressure seal
With separate, encased pipe-gripping means
285177, 285235, 285268, 285906, F16L 2704
Patent
active
046207309
ABSTRACT:
A coupling device for pipelines, such as offshore oil or gas lines, comprises a casing having at least one opening for the introduction of the end of a pipe section and an internal frusto-conical wall surface around said opening and diverging away therefrom, said surface constituting a seat for a spherical member firmly connected with a pipe section, said spherical member being at its opposite side influenced by a pressure member, for instance a frusto-conical member biased by a pressure member to firmly engage said frusto-conical surface while allowing said spherical member to turn relative to said frusto-conical wall surface.
The casing may be a two-part casing having two opposite aligned openings for the introduction of pipe sections and frusto-conical wall surfaces diverging towards each other, each of said wall surfaces forming the seat for the respective spherical member with its associated pressure member.
REFERENCES:
patent: 1690839 (1928-11-01), Roth
patent: 2456182 (1946-12-01), Goble
patent: 2793883 (1957-05-01), Main
patent: 3144263 (1964-08-01), Gray
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