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:
Dec. 24, 2019
Filed:
Mar. 21, 2016
National Oilwell Varco Uk Limited, Stonehouse, GB;
Richard Verhoef, Akkrum, NL;
John Bradley Applewhite, Houston, TX (US);
National Oilwell Varco UK Limited, Gloucester, GB;
Abstract
A top drive apparatus for facilitating communication between a computer apparatus and a device in a drill string, particularly, but not exclusively during tripping, the drill string comprising a pipe () having a threaded box end () and a pipe communication element () therein, the top drive apparatus comprising a top drive () having a main shaft () and a tool () rotationally fast therewith, the tool () comprising a threaded pin end () having a tool communication element () projecting therefrom, such that in use the thread does not have to be made up to obtain a communication between the pipe communication element and the tool communication element, either by induction and most optionally a physical contact therebetween to provide an electrical contact therebetween.