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:
Oct. 28, 2014
Filed:
Feb. 23, 2010
George Telfer, Aberdeen, GB;
George Telfer, Aberdeen, GB;
Specialised Petroleum Services Group Limited, Aberdeen, Aderdeenshire, GB;
Abstract
A downhole cleaning tool for cleaning a casing is provided with a diverter cup assembly () including a housing () and a resilient swab cup () slidably mounted on a tubular body () with an increased external diameter portiondefining at either end upper and lower limit stops (), and sized to make provision for a gap () which allows a sliding movement of the swab cup such that only one of limit stops () engages to always pull the swab cup via optional bearings () at each extremity of the sliding travel according to whether the tool is being run in hole or pulled out of the hole. This means that the swab cup is not compressed into a squat oversize shape susceptible to contact damage, and is naturally drawn out to tend towards an elongate shape in either direction of tool motion.