The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 11, 2002
Filed:
Sep. 15, 2000
Applicant:
Inventors:
Mark Carmichael, Jersey, GB;
Paul Howlett, Aberdeen, GB;
Assignee:
SPS-AFOS Group Limited, Aberdeen, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 3/700 ;
U.S. Cl.
CPC ...
E21B 3/700 ;
Abstract
A down-hole tool has a body of varying cross-sectional diameter to correspond with a stepped profile of a well bore, such as at the well head. The tool is provided with cleaning members, such as bristles, and fluid circulation paths terminating in radial outlets for cleaning otherwise difficult formations or profiles.