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:
Feb. 02, 2021

Filed:

Jul. 13, 2020
Applicants:

Cnpc Usa Corporation, Houston, TX (US);

Beijing Huamei Inc., Beijing, CN;

Inventors:

Chris Cheng, Houston, TX (US);

Hongtao Liu, Xinjiang, CN;

Javier Davila, Houston, TX (US);

Xu Wang, Beijing, CN;

Yuxin Wang, Beijing, CN;

Zhenzhou Yang, Beijing, CN;

Xiongwen Yang, Beijing, CN;

Assignees:

CNPC USA Corporation, Houston, TX (US);

China National Petroleum Corporation, Xinjiang, CN;

Beijing Huamei, Inc., Beijing, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/567 (2006.01); E21B 10/42 (2006.01);
U.S. Cl.
CPC ...
E21B 10/5673 (2013.01); E21B 10/42 (2013.01);
Abstract

The present disclosure provides non-planar cutting tooth and a diamond drill bit. The non-planar cutting tooth comprises a base, a table connected to a top of the base. a concave shaped surface on the center portion of a top surface of the table; three cutting ridges with each extending from a vertex of the concave shaped surface to an outer edge of the top surface; three cutting bevels with each locating between two cutting ridges of the three cutting ridges; each of the three cutting ridges has a fillet.


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