PRESSURE CONTROL DEVICE - RUBBERATKINS LTD

Title:

PRESSURE CONTROL DEVICE

Document Type and Number:

WIPO Patent Application WO/2011/020987

Kind Code:

A3

Abstract:

A pressure control device for isolating a section of a conduit is described. The device 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.

Inventors:

ATKINS NICHOLAS (GB)
CLARKE TIM (GB)
SPALDING CRAIG (GB)
HARE DAVID (GB)

Application Number:

PCT/GB2010/001438

Publication Date:

May 05, 2011

Filing Date:

July 29, 2010

Export Citation:

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Assignee:

RUBBERATKINS LTD (GB)
ATKINS NICHOLAS (GB)
CLARKE TIM (GB)
SPALDING CRAIG (GB)
HARE DAVID (GB)

International Classes:

E21B33/12; E21B33/126

Domestic Patent References:

WO2005121498A1	2005-12-22
WO2006126925A1	2006-11-30
WO2009074785A2	2009-06-18