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.

Date of Patent:
Jul. 29, 2014

Filed:

Aug. 12, 2011
Applicant:

Mohammad Ali Taghipour Khadrbeik, Trondheim, NO;

Inventor:
Assignee:

Sinvent AS, Trondheim, NO;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/30 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention discloses a cutting tool integrated in a drillstring for enlarging a borehole, where the cutting tool at least comprises: one or more side mills () arranged along the axis of said drillstring in a reamer housing (), where the side mills () are adapted to be rotated relative to the tool housing () by individual driving means. The self driven rotational side mills may be dome shaped cones where expand radially out of the reamer housing (), or may be a special non-circular dome shaped cones where rotates without expanding.


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