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:
Aug. 18, 2020
Filed:
Aug. 23, 2018
Applicant:
Bitswave Inc., Sugar Land, TX (US);
Inventor:
Ce Liu, Sugar Land, TX (US);
Assignee:
BITSWAVE INC., Sugar Land, unknown;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 7/06 (2006.01); E21B 4/02 (2006.01); E21B 17/16 (2006.01); E21B 3/00 (2006.01); E21B 7/04 (2006.01); E21B 4/00 (2006.01);
U.S. Cl.
CPC ...
E21B 7/064 (2013.01); E21B 3/00 (2013.01); E21B 4/02 (2013.01); E21B 7/062 (2013.01); E21B 17/16 (2013.01); E21B 4/003 (2013.01); E21B 7/046 (2013.01);
Abstract
A steerable earth boring assembly which includes an annular collar and a drive shaft with a drill bit, where the shaft pivots with respect to the collar. An upper portion of the shaft inserts into an orientation sleeve which resides in the collar. An axial bore is obliquely formed through the orientation sleeve, and in which the upper portion inserts. An angular offset between the drive shaft and collar is changed by adjusting azimuthal positions of the orientation sleeve with respect to the collar. A brake assembly is included for applying a restraining force onto the orientation sleeve.