Wired drill pipe having conductive end connections

Details Wired drill pipe having conductive end connections Wired drill pipe having conductive end connections

2008-09-25

2010-12-28

Ta, Tho D (Department: 2839)

Electrical connectors

Having retainer or passageway for fluent material

Fluent material transmission line

C439S192000, C439S950000

Reexamination Certificate

active

07857644

ABSTRACT:
Apparatus and methods associated with wired drill pipe having conductive end connections are described. In one described example, an end connector for use with drill pipe includes a generally cylindrical body having an outer shoulder and an inner shoulder. In the described example, the outer shoulder is to engage a shoulder of a drill pipe to be coupled to the body to provide an electrically conductive connection between the body and the drill pipe, and the inner shoulder is to engage an end of the drill pipe. The example end connector also includes a generally cylindrical electrical connector rigidly coupled to the cylindrical body to form at least a portion of the inner shoulder. The generally cylindrical electrical connector is substantially electrically insulated from the cylindrical body and is to contact the end of the drill pipe to provide an electrically conductive connection between the electrical connector and the end of the drill pipe.

REFERENCES:
patent: 3696332 (1972-10-01), Dickson, Jr. et al.
patent: 5060737 (1991-10-01), Mohn
patent: 5339037 (1994-08-01), Bonner et al.
patent: 6717501 (2004-04-01), Hall et al.
patent: 6929493 (2005-08-01), Hall et al.
patent: 2006/0225926 (2006-10-01), Madhavan et al.

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