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:
Jun. 03, 2014
Filed:
Apr. 19, 2010
Applicants:
Karl Einar Ferkingstad, Kopervik, NO;
Arne Motland, Stavanger, NO;
Rune Bjørndal, Stavanger, NO;
Inventors:
Assignee:
Aker Well Service AS, Stavanger, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A stroker device for use in a borehole in the ground includes an actuator arranged for displacing a tool in a longitudinal direction of the borehole, and grippers arranged to anchor the stroker to the wall of the borehole, alternatively to a pipe wall, wherein the stroker is provided with driving wheels or driving belts for propulsion.