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. 05, 2019

Filed:

Nov. 29, 2013
Applicant:

Halliburton Energy Services, Inc., Houston, TX (US);

Inventors:

Shanu Thottungal Eldho, Singapore, SG;

Michael Dale Ezell, Carrollton, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 23/01 (2006.01); E21B 33/129 (2006.01);
U.S. Cl.
CPC ...
E21B 23/01 (2013.01); E21B 33/129 (2013.01); E21B 33/1292 (2013.01);
Abstract

An external slip includes a slip body comprising a wall having internal and external surfaces. The internal surface includes a ramp portion, and a plurality of teeth is disposed on the external surface of the wall of the slip body. A plurality of expansion slots extends through a thickness of the wall, at least one extending from a first end of the wall toward a second end of the wall but not reaching the second end. At least another of the plurality of expansion slots extends from the second end toward the first end of the wall but does not reach the first end. An installation slot extends through a thickness of the wall along a length of the wall, and a retainer is coupled to first and second gap ends of the wall across a gap created by the installation slot.


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