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:
Mar. 31, 2009
Filed:
Jul. 02, 2007
Michael King Russell, Cheltenham, GB;
Colin Walker, Cheltenham, GB;
Michael King Russell, Cheltenham, GB;
Colin Walker, Cheltenham, GB;
Russell Oil Exploration Limited, Cheltenham, GB;
Abstract
A down-hole drilling assembly () and control system () therefor, for directional drilling including a bent housing of a bottom hole assembly (), utilizing a gearbox () to derive a higher speed (about 600 r.p.m.) rotational drive () from the drill string () to drive a drilling bit () via an electromagnetic clutch () controlled by the control system () such that the clutch balances reaction torque when the orientation angle of the bent housing is correct.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile