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:
Sep. 15, 2020

Filed:

Sep. 21, 2016
Applicant:

Smith International, Inc., Houston, TX (US);

Inventors:

Youhe Zhang, Spring, TX (US);

Chen Chen, New Haven, CT (US);

Yuri Burhan, Spring, TX (US);

Balasubramanian Durairajan, Sugar Land, TX (US);

Sandeep Tammineni, Dhahran, SA;

Assignee:

SMITH INTERNATIONAL, INC., Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/56 (2006.01); E21B 10/62 (2006.01); E21B 10/42 (2006.01);
U.S. Cl.
CPC ...
E21B 10/56 (2013.01); E21B 10/42 (2013.01); E21B 10/62 (2013.01);
Abstract

A cutting element includes a cutting end extending a depth from a cutting face to an interface surface opposite from the cutting face, and a spindle, the spindle axially separated from the cutting end by a transition region. The spindle has a spindle diameter measured between a spindle side surface, which is less than a cutting end diameter. A guide length, measured from a point of transition to the transition region to a retention feature, is longer than 75% of a total length of the spindle.


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