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US Patent 8123226 Seal assembly

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
81232261
Patent Inventor Names
David Brocklebank1
Michael Antoine Joseph Caroline Bell1
Sylvain Denniel1
Date of Patent
February 28, 2012
1
Patent Application Number
105224711
Date Filed
July 24, 2003
1
Patent Citations Received
‌
US Patent 11859597 Ocean thermal energy conversion power plant
2
Patent Primary Examiner
‌
Alison Pickard
1
Patent abstract

A seal assembly for sealing an annular space between an inner and an outer pipe in a double-walled subsea pipeline which seal assembly comprises an annular member (1) and moveable blocking means (2, 3) and: (a) under normal operating conditions is in a non-sealing position which allows the passage of a gas through said seal assembly; and (b) is actuatable from a non-sealing position to a sealing position in response to the entry of liquid into said annular space.

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