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:
Aug. 06, 2013

Filed:

Aug. 12, 2010
Applicants:

Khang Van Nguyen, Houston, TX (US);

Martin Anthony Trumbull, Cypress, TX (US);

Inventors:

Khang Van Nguyen, Houston, TX (US);

Martin Anthony Trumbull, Cypress, TX (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 33/03 (2006.01);
U.S. Cl.
CPC ...
Abstract

A dual barrier plug system includes a frac spool, having a dual barrier plug disposed within the interior of the frac spool; a valve selector member disposed within the interior of the dual barrier plug; and the plurality of seals are used to seal fluid flow from below the frac spool, and the seals provide two barriers to each fluid flow.


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