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:
Jan. 07, 2020

Filed:

Oct. 02, 2018
Applicants:

Guijun Deng, The Woodlands, TX (US);

Alexander M. Kendall, Houston, TX (US);

Andrew J. Cayson, Cypress, TX (US);

Inventors:

Guijun Deng, The Woodlands, TX (US);

Alexander M. Kendall, Houston, TX (US);

Andrew J. Cayson, Cypress, TX (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 33/12 (2006.01); E21B 33/128 (2006.01);
U.S. Cl.
CPC ...
E21B 33/1216 (2013.01); E21B 33/128 (2013.01);
Abstract

A seal backup including: a ring-like body, the body including: a first portion of the body having a first generally zig-zag construction, the first generally zig-zag construction facilitative of radial expansion of the first portion; a second portion of the body having a second generally zig-zag construction, the second generally zig-zag construction facilitative of radial expansion of the second portion; a parting feature disposed between the first portion of the body and the second portion of the body facilitative of relative movement between the first portion of the body and the second portion of the body.


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