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:
Nov. 28, 2000
Filed:
Aug. 19, 1999
Applicant:
Inventors:
Mark Carmichael, Aboyne, GB;
Paul Howlett, Aberdeen, GB;
Assignee:
Specialised Petroleum Services Limited, Westhill, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ; B08B / ;
U.S. Cl.
CPC ...
166174 ; 1510416 ;
Abstract
Apparatus for cleaning the inside walls of a pipeline, well casing or other tubing, comprises a supporting structure upon which are supported one or more cleaning members, and retraction means for controllably retracting the cleaning members so as to avoid their contact with the aforesaid tubing when desired. The apparatus is also provided with a sleeve to effect contact between the retractable cleaning members and the pipeline, well casing or other tubing. Typically, the apparatus is provided in the form of a well cleanup tool.