Patent ID: 8122919

Claim:
A LNG transferring arm, comprising: a cylindrical support base mounted to a side of a hull; a main body comprising a rotating structure which is rotatably provided on an upper portion of the support base; a boom assembly comprising a longitudinal member which is connected to a side of the main body in such a way as to rotate up and down, and which is bendable at one end thereof; a support assembly supporting the boom assembly, the support assembly being bent along with the boom assembly, being assembled by a plurality of articulation links, and being bent by a cylinder; a transfer pipe and a return pipe arranged along the boom assembly, and each having a rotary articulation, an end of each of the transfer pipe and the return pipe being connected to a tank to which LNG will be transferred; a balance weight rotatably supported above the main body via a bracket, and hinged at one end thereof to the boom assembly, thus maintaining balance; and rotary branch means provided in the main body, and comprising two pipes which have different diameters and are arranged concentrically, a lower portion of the rotary branch means being fixedly connected to a gas storage tank and an upper portion of the rotary branch means being rotatably branched to be connected to the transfer pipe and the return pipe.