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.
Patent No.:
Date of Patent:
Apr. 09, 2019
Filed:
Jun. 02, 2016
Applicant:
Weatherford Technology Holdings, Llc, Houston, TX (US);
Inventors:
Gary Duron Ingram, Houston, TX (US);
Simon J. Harrall, Houston, TX (US);
Assignee:
Weatherford Technology Holdings, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/128 (2006.01); E21B 33/12 (2006.01); E21B 33/134 (2006.01);
U.S. Cl.
CPC ...
E21B 33/128 (2013.01); E21B 33/1216 (2013.01); E21B 33/134 (2013.01);
Abstract
An anti-extrusion device used in a packer or a bridge plug is disclosed. The anti-extrusion device includes a garter spring and a support assembly having a ring shaped body disposed in an entire circumference of an inner volume of the garter spring. The ring shaped body expands with expansion of the garter spring while maintaining a continuous ring.