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. 11, 2012
Filed:
Feb. 28, 2008
Applicants:
Jørgen Hallundbaek, Graested, DK;
Thomas Sune Andersen, Helsnigør, DK;
Inventors:
Jørgen Hallundbaek, Graested, DK;
Thomas Sune Andersen, Helsnigør, DK;
Assignee:
Welltec A/S, Allerod, DK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 4/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A drilling tool () for drilling downhole, comprising a drilling head () in connection with a first portion () of the drilling tool, a driving unit () for driving the drilling head and the first portion forward in a longitudinal movement while drilling, and a feed control () for controlling the longitudinal movement of the drilling head.