Rapid disconnect pipe coupling device for cryogenic service

Details Rapid disconnect pipe coupling device for cryogenic service Rapid disconnect pipe coupling device for cryogenic service

1978-10-16

1982-01-05

Callaghan, Thomas F.

Pipe joints or couplings

With assembly means or feature

285 3, 285365, 285DIG5, F16C 1706

Patent

active

043090494

ABSTRACT:
A pipe coupling device, especially suitable for use in cryogenic systems, including a plurality of arcuate collar segments each having a radially extending inner groove with cam surfaces to grasp flanges at the ends of a pair of pipes to be coupled together in a fluid-tight arrangement. The ends of the collar segments are pivotally interconnected to a generally circular configuration having a pair of adjacent unconnected end portions. Means are provided for clamping the end portions of the collar together and for pressing the collar segments against the pipe flanges. A hydraulic jack is provided for forcing the end portions of the collar segments apart and for pivotally moving the collar segments radially outward from the pipe flanges when the pipes are to be disconnected. Flexible protectors about the pivot connections facilitate the breaking of ice which may form around the coupling device.

REFERENCES:
patent: 2904353 (1959-09-01), Brickhouse, Jr.
patent: 3214202 (1965-10-01), Maychark
patent: 3661409 (1972-05-01), Brown et al.
patent: 4036258 (1977-07-01), Wolters

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