Patent ID: 6623043
Filing Date: 2003-09-23
Classification: B63B,B67D,Y10S,Y10T

Abstract:
Loading structure (1) for liquefied natural gas, comprising a fluid transfer boom (3) for transfer of cryogenic liquids between a first storage structure (2) and a vessel (4), the boom (3) having an elongated substantially vertical first arm (7, 75) and an elongated substantially horizontal second arm (8, 76) which are mutually connected at a first end (9) via a swivel joint (20, 57), the first and second arms (7, 8; 75, 76) having substantially rigid walls and having each a second end (10, 11) connected to the storage structure (2) and connectable to the vessel (4) respectively, a liquefied natural gas tubular conduit (54) supported within the first and second arms (7, 8) which form a gas tight housing around the liquefied natural gas conduit, the liquefied natural gas tubular conduit (54) having deformable wall sections (72) at least adjacent the internal swivel joint (58) for allowing thermally induced expansion and/or contraction in a length direction of the tubular conduit.