Electric motors for powering downhole tools

Details Electric motors for powering downhole tools Electric motors for powering downhole tools

2008-05-27

2008-05-27

Mullins, Burton (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C166S066400, C417S423300

Reexamination Certificate

active

10528664

ABSTRACT:
An electric motor for powering downhole tools comprises a first stator (32) including a first set of coil windings (73), a second stator including a second set of windings, an axially located rotatable shaft (92) including a first magnetic element and a second magnetic element, a sealed annular chamber defined by a first tube (96), and an second tube concentrically inside the first tube. The first and second stators are located in the annular chamber, and the first magnetic elements being aligned with the first stator such that the first stator when energised can act upon the first magnetic element, and the second magnetic element being aligned with the second stator such that the second stator when energised can act upon the second magnetic element.

REFERENCES:
patent: 1960484 (1934-05-01), Ekstromer
patent: 1978986 (1934-10-01), Coberly
patent: 2359215 (1944-09-01), Gold
patent: 3068371 (1962-12-01), Galtz
patent: 3135884 (1964-06-01), Luenberger
patent: 3631275 (1971-12-01), Conrad et al.
patent: 4492889 (1985-01-01), Fukushi et al.
patent: 4687054 (1987-08-01), Russell et al.
patent: 5142180 (1992-08-01), Moore et al.
patent: 5320182 (1994-06-01), Mendez
patent: 5734209 (1998-03-01), Hallidy
patent: 5923111 (1999-07-01), Eno et al.
patent: 6288470 (2001-09-01), Breit
patent: 6557642 (2003-05-01), Head
patent: 6700252 (2004-03-01), Fleshman et al.

Affiliated with

Also associated with

Rating

Electric motors for powering downhole tools does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electric motors for powering downhole tools, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric motors for powering downhole tools will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3955797