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:
May. 03, 2016
Filed:
Mar. 05, 2013
Applicant:
Smith International, Inc., Houston, TX (US);
Inventors:
Youhe Zhang, Spring, TX (US);
Jibin Shi, Spring, TX (US);
Yuri Burhan, Spring, TX (US);
Chen Chen, The Woodlands, TX (US);
Assignee:
SMITH INTERNATIONAL, INC., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/573 (2006.01); E21B 10/42 (2006.01); E21B 10/627 (2006.01); E21B 10/633 (2006.01);
U.S. Cl.
CPC ...
E21B 10/42 (2013.01); E21B 10/573 (2013.01); E21B 10/5735 (2013.01); E21B 10/627 (2013.01); E21B 10/633 (2013.01);
Abstract
A cutter assembly may include a sleeve; and at least one cutting element having a lower spindle portion retained in the sleeve and a portion of the cutting element interfacing an axial bearing surface of the sleeve, wherein an outer diameter D of the cutting element and a radial length T of a substantially planar portion of the axial bearing surface of the sleeve have the following relationship: (1/25)D≦T≦(1/4)D.