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:
Feb. 28, 2012
Filed:
Jul. 24, 2003
Michael Antoine Joseph Caroline Bell, Neuilly-sur-Seine, FR;
Sylvain Denniel, Aberdeen, GB;
David Brocklebank, Aberdeen, GB;
Michael Antoine Joseph Caroline Bell, Neuilly-sur-Seine, FR;
Sylvain Denniel, Aberdeen, GB;
David Brocklebank, Aberdeen, GB;
Technip France SA, , FR;
Technip Offshore UK Limited, , GB;
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 () and moveable blocking means () 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.