Pipe joints or couplings – With means blocking release of holding means – Key or pin
Patent
1982-12-20
1985-09-03
Taylor, Dennis L.
Pipe joints or couplings
With means blocking release of holding means
Key or pin
285 92, 285403, 403320, 411200, F16L 3700
Patent
active
045388385
ABSTRACT:
A method and apparatus of making up and sealing between threaded sections of a well tool such as a safety valve. The female connection includes an end on one side of its thread and a shoulder on the other side of its thread and the male connection includes an end on one side of its thread and a shoulder on the other side of its thread. A soft metal seal is positioned between the end of the male connection and the shoulder on the female connection for sealing between the connections when the connections are threaded together. A hole is drilled in the made-up connection through the shoulder of the male connection and the end of the female connection and a plug is positioned in the hole with a force fit for maintaining the rotational and longitudinal alignment of the made-up connection. Preferably the metal seal is supported by a recess on one of the connections and a taper on the other of the connections. The plug may include a connection for removing the plug. Preferably the hole and plug are round and a plurality of holes and plugs may be provided.
REFERENCES:
patent: 986837 (1911-03-01), Light
patent: 1958817 (1934-05-01), Gase
patent: 2409969 (1946-10-01), Williams
patent: 3608933 (1971-09-01), Lee
patent: 3702707 (1972-11-01), Rosan
patent: 3923324 (1975-12-01), Cruickshank et al.
patent: 4253687 (1981-03-01), Maples
patent: 4406485 (1983-09-01), Giebeler
Camco Incorporated
Taylor Dennis L.
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