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:
Feb. 10, 2015
Filed:
Mar. 19, 2009
Kristoffer Brække, Stavanger, NO;
Kristoffer Brække, Stavanger, NO;
I-Tec AS, Royneberg, NO;
Abstract
Two well tools () having centrally mounted drive shafts () are provided with a mechanism to remove debris from a coupling between them. Thereafter, the tools can be coupled by inserting a first outer sleeve () on the first tool into and rotationally lock it to a second outer sleeve () on the second tool. The drive shafts () are coupled in a similar manner. The mechanism for removing debris can displace the debris and/or a flushing device () using well fluid to stir up debris. The coupling has space for debris that is not removed, e.g. in the form of a chamber. The female part of the coupling may comprise a spring loaded lid () to reduce pollution by debris when the coupling is not in use.