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:
Mar. 06, 2018
Filed:
Aug. 29, 2013
Nov Downhole Eurasia Limited, Gloucestershire, GB;
Alan Martyn Eddison, York, GB;
Rory McCrae Tulloch, Abderdeen, GB;
NOV Downhole Eurasia Limited, , GB;
Abstract
A downhole tool () comprising rotatable inner and outer sleeves (). The sleeves () comprise coupling portions for transmitting a torque between the sleeves (). The tool is reconfigurable between a first configuration whereby the coupling portions are axially misaligned to prevent transmission of torque between the inner and outer sleeves (), and a second configuration whereby the coupling portions are axially aligned to permit a transmission of torque between the sleeves (). At least one of the coupling portions is configured to prevent the transmission of torque above a predetermined torque threshold.