US 6,981,526 B2
Armoured flexible pipe and use of same
Kristian Glejbol, Glostrup (Denmark); and Jan Christian Rytter, Copenhagen S (Denmark)
Assigned to NKT Flexibles I/S, Brondby (Denmark)
Filed on May 18, 2004, as Appl. No. 10/847,745.
Application 10/847745 is a continuation of application No. 09/868464, previously published as PCT/DK99/00706, filed on Dec. 16, 1999.
Claims priority of application No. 1998 01650 (DK), filed on Dec. 16, 1998.
Prior Publication US 2004/0221907 A1, Nov. 11, 2004
Int. Cl. F16L 11/00 (2006.01)
U.S. Cl. 138—129 12 Claims
OG exemplary drawing
 
1. An armored flexible offshore pipe comprising;
an inner liner for preventing fluids from flowing in and out of the interior of the pipe, and surrounded by a helically wound pressure armor;
the pressure armor comprising a plurality of X-profiles mechanically kept together with profiles of another type;
each X-profile having opposed edge faces, with the edge faces of adjacent X-profiles directed toward each other;
each X-profile having an outer face between the opposed edge faces of that X-profile and comprising an outer surface of the pressure armor;
each X-profile having an inner face comprising an inner surface of the pressure armor;
each X-profile having at least two locking folds operative for engagement with respective profiles of the other type; and
the locking folds of each X-profile being located between the edge faces and the outer face of that X-profile.