Pipe joints or couplings – Packed – Screw thimble
Reexamination Certificate
2005-05-10
2005-05-10
Hewitt, James M. (Department: 3679)
Pipe joints or couplings
Packed
Screw thimble
C285S387000, C285S389000
Reexamination Certificate
active
06890007
ABSTRACT:
In the field of oil drilling and other well operations there is a need for a coiled tubing connector that is quick and simple to use. There is also a need for a coiled tubing connector that is reusable. A coiled tubing connector (50) comprises a first sub (20); at least one arcuate segment (31, 32) and a second sub (40). The first sub (20) is slidable on the exterior surface of a length of unwound coiled tubing (10); and includes an internal recessed portion (21) and an engagement portion (22) adjacent to a first end thereof (26). At least one arcuate segment (31, 32) defines a protuberance (33) extending radially from an inner surface thereof. Each protuberance (33) is engagable with a corresponding circumferentially extending recess (11) in the coiled tubing (10). The second sub (40) is slidable on the exterior surface of the coiled tubing (10); and includes an engagement portion (41) adjacent to a first end thereof (42). The engagement portion (22) of the first sub (20) is engagable with the engagement portion (41) of the second sub (40) whereby in use each arcuate segment (31, 32) is retained within the internal recessed portion (21) of the first sub (20), thereby maintaining engagement of each radially extending protuberance (33) with the circumferentially extending recess (11).
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Finnegan Henderson Farabow Garrett & Dunner LLP
Hewitt James M.
Varco I/P Inc.
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