Connector and method of use of the connector

Pipe joints or couplings – Packed – Socket

Reexamination Certificate

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C285S354000, C285S339000

Reexamination Certificate

active

07011344

ABSTRACT:
A connector for connection of a pipe end portion of coiled tubing adapted for connecting a piece of downhole equipment. The connector is formed by three separate parts that can be screwed together two and two, of which a radially inner shrinkable adapter sleeve compressively surrounded by an elongate outer adapter and connector sleeve ensures the securing of the end portion of the coiled tubing, whereas a freely projecting, internally threaded end portion of the outer sleeve ensures the connection to the remaining part of the connector in the screwing together. The connector, besides exhibiting improved tensile, flexural and compressive strength properties, is also well suited to absorb torques applied. The inner shrinkable adapter sleeve, which has an external jacket surface of an axially conical extent, is provided with external threads, complementarily matched by the internal threads of the outer adapter and connector sleeve, which are formed in the bore-defining inner circumferential surface, which has a conical extent in the axial direction, its conicity complementarily corresponding to the externally conical extent of the inner adapter sleeve.

REFERENCES:
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patent: 4330143 (1982-05-01), Reneau
patent: 5156206 (1992-10-01), Cox
patent: 6378915 (2002-04-01), Katz
patent: 2 257 180 (1993-06-01), None
patent: 2 298 467 (1996-04-01), None

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