Drill string tool with bearing sleeve

Details Drill string tool with bearing sleeve Drill string tool with bearing sleeve

2007-02-27

2007-02-27

Neuder, William P. (Department: 3672)

Boring or penetrating the earth

With tool shaft detail

Helix or helically arranged structure

C175S325500

Reexamination Certificate

active

10888112

ABSTRACT:
A drill string tool such as a drill string stabilizer (1) comprises a circumferentially continuous bearing sleeve (6) having an outside diameter which is equal to or greater than the outside diameter of a radially outermost part of the drill string tool.

REFERENCES:
patent: 1794278 (1931-02-01), Carney
patent: 3360846 (1968-01-01), Schellstede et al.
patent: 3971450 (1976-07-01), Fox
patent: 4445727 (1984-05-01), Funk
patent: 5542454 (1996-08-01), Carlson et al.
patent: 6352107 (2002-03-01), Bennett et al.
patent: 2001/0032722 (2001-10-01), Eaton
patent: WO 96/03568 (1996-02-01), None

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