Quick make-and-break large diameter coupling

Details Quick make-and-break large diameter coupling Quick make-and-break large diameter coupling

1978-06-16

1980-06-24

Callaghan, Thomas F.

Pipe joints or couplings

With means blocking release of holding means

Auxiliary latch

2853322, 285376, F16L 3724

Patent

active

042091918

ABSTRACT:
For large diameter tubular goods, especially pipe strings installed in underwater wells, the invention provides an improved quick make-and-break coupling of the type in which part of one rotation causes axial engagement between coupling lugs. Back-angled surfaces are provided in a fashion achieving radial forces, under both compression and tension, which oppose radial separation of telescopically engaged male and female connector members.

REFERENCES:
patent: 806665 (1905-12-01), Henderson et al.
patent: 815627 (1906-03-01), Oldham
patent: 2207005 (1940-07-01), Haas
patent: 3388752 (1968-06-01), Hanes et al.
patent: 3442536 (1969-05-01), Fowler
patent: 3989284 (1976-11-01), Blose
patent: 4113290 (1978-09-01), Miida
patent: 4165891 (1979-08-01), Sullaway et al.

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