Misalignment pipe connector

Details Misalignment pipe connector Misalignment pipe connector

1977-08-12

1979-01-09

Callaghan, Thomas F.

Pipe joints or couplings

With assembly means or feature

Particular tool-engaging means or with tool

285167, 285263, 285309, 285379, F16L 2706

Patent

active

041335589

ABSTRACT:
A misalignment connector for large pipelines includes an internal, metal seal ring having an external spherical surface which is axially and circumferentially loaded between opposed internal spherical metal surfaces of pipe connector hubs having parts engaged with holding means having spherical surfaces enabling the connector to be made up with the pipe connector hubs disposed over a range of angular misalignment and with the sealing ring loaded axially and inwardly when the connector body parts are secured together by the holding means to prevent relaxation of the preload on the sealing ring. The metal sealing ring is initially supported on one of the hubs by means enabling relative angular motion of the sealing ring as it is loaded between misaligned hubs. The hubs are provided with thrust surfaces enabling them to be initially preloaded against the sealing ring by a loading tool.

REFERENCES:
patent: 275098 (1883-04-01), Walker
patent: 1681729 (1928-08-01), Gold et al.
patent: 2866370 (1958-12-01), Biach
patent: 3321217 (1967-05-01), Ahlstone
patent: 3466738 (1969-09-01), Mount
patent: 3492027 (1970-01-01), Herring
patent: 3628812 (1971-12-01), Larralde
patent: 3675713 (1972-07-01), Watkins
patent: 3717920 (1973-02-01), Oliver et al.
patent: 4012059 (1977-03-01), Luke et al.
patent: 4068868 (1978-01-01), Ohrt

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