Casing brush assembly

Details Casing brush assembly Casing brush assembly

2007-08-14

2007-08-14

Neuder, William P (Department: 3672)

Wells

Brushing, scraping, cutting or punching-type cleaners

On tubing or casing

Reexamination Certificate

active

11076042

ABSTRACT:
A casing brush assembly comprises a mandrel, upper and lower stabilisers, a brush and a magnet assembly. The magnet assembly comprises a plurality of helically extending brush elements each of which is spaced from the underlying mandrel so that it can flex inwardly to accommodate variations in casing diameter. The thickness of the brush elements is relatively thin in the portions which connect the central regions to the ends of the brush with the result that the deflection of the brush elements is largely accommodated by the relatively thin regions. The magnet assembly includes three rings of magnets held in a non-magnetic cage and located beneath a thin cover of non-magnetic material. The assembly can be used in a non-rotating mode (in which the brush is free to rotate relative to the mandrel) or in a rotating mode in which the brush is rotationally fast with the mandrel.

REFERENCES:
patent: 4438812 (1984-03-01), Hammon
patent: 6152220 (2000-11-01), Carmichael et al.
patent: 6530429 (2003-03-01), Howlett
patent: 6655462 (2003-12-01), Carmichael et al.
patent: 7137449 (2006-11-01), Silguero
patent: 2001/0040035 (2001-11-01), Appleton et al.

Affiliated with

Also associated with

Rating

Casing brush assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Casing brush assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Casing brush assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3897017