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:
Aug. 25, 2015
Filed:
Nov. 22, 2011
Paul Howlett, Aberdeen, GB;
Paul Howlett, Aberdeen, GB;
Tercel IP Limited, Tortola, VG;
Abstract
An assembly and method for protecting a pipe string movable within a wellbore. A generally annular body () is internally dimensioned to fit around said pipe string, and an outer sleeve () formed from at least two part-annular sections () and rotatably located over the annular body (). A pair of substantially annular clamping means are adapted to restrict longitudinal movement of the body () and outer sleeve () relative to the pipe string, each clamping means comprising a one-piece clamping ring () and a fastener () adapted to tighten the clamping ring () around the pipe string. The body (), outer sleeve (), and clamping rings () may be formed from one or more sacrificial materials that can break up and be circulated out of the wellbore.