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:
Feb. 27, 2018

Filed:

Jul. 29, 2010
Applicants:

Nicholas Atkins, Bridge of Don, GB;

Craig Spalding, Bridge of Don, GB;

Tim Clarke, Bridge of Don, GB;

David Hare, Bridge of Don, GB;

Inventors:

Nicholas Atkins, Bridge of Don, GB;

Craig Spalding, Bridge of Don, GB;

Tim Clarke, Bridge of Don, GB;

David Hare, Bridge of Don, GB;

Assignee:

Other;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/126 (2006.01); E21B 33/12 (2006.01);
U.S. Cl.
CPC ...
E21B 33/126 (2013.01); E21B 33/1208 (2013.01); Y10T 137/0379 (2015.04);
Abstract

A pressure control device for isolating a section of a conduit comprises a support member, a flexible cup member mounted to the support member, a first swellable element, the first swellable element adapted, upon activation by an activation fluid, to urge a first portion of the cup member outwards into engagement with a conduit surface and at least one bypass arranged to permit the activation fluid to bypass the swellable element and build up behind a second portion of the cup member.


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