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:
Jun. 25, 2013

Filed:

Jan. 27, 2010
Applicants:

David Wei Wang, Sugar Land, TX (US);

Gary L. Rytlewski, League City, TX (US);

Inventors:

David Wei Wang, Sugar Land, TX (US);

Gary L. Rytlewski, League City, TX (US);

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

An apparatus and method for plugging a wellbore completion. The apparatus includes a body and a variable diameter ring. The body includes a first portion having a first diameter, and a second portion having a second diameter that is smaller than the first diameter. The variable diameter ring is disposed around the body and slidable on the first and second portions. The ring is configured to engage a flow path reduction device when located on the first portion, and to move past the flow path reduction device when located on the second portion.


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