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:
Jul. 30, 2024

Filed:

Oct. 15, 2020
Applicant:

Plexus Ocean Systems Limited, Aberdeen, GB;

Inventors:

Michael Robertson, Aberdeen, GB;

Richard Arthur, Aberdeen, GB;

Craig Hendrie, Aberdeen, GB;

Brent Harrald, Aberdeen, GB;

Steve Rizza, Aberdeen, GB;

Jinde Hao, Aberdeen, GB;

Assignee:

Plexus Holdings PLC, Aberdeen, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/03 (2006.01); E21B 33/035 (2006.01);
U.S. Cl.
CPC ...
E21B 33/03 (2013.01); E21B 33/0353 (2020.05);
Abstract

A crown plug for a tree of an oil/gas well/wellhead has a securement arrangement for securing the crown plug within the tree. The main body of the crown plug comprises a solid body creating the barrier within the production bore. The solid body creates a robust, strong and reliable barrier. The crown plug is retained within the outer member through inward distortion which secures the crown plug. The securement arrangement arises from an inward radial force that distorts the outer member inwardly to grip a component located within the outer member. The outer member elastically deforms and the outer member returns to a released position once the clamping force is released. Two concentric oppositely arranged tapered surfaces move axially to create the inwardly directed force. The clamping force and the solid body together provide an improved crown plug which is easy and reliable to operate.


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