Patent ID: 8960114
Filing Date: 2015-02-24
Classification: B63B,B63C

Abstract:
1. A marine lifting apparatus comprising: a) first and second vessels; b) a first frame that spans between the vessels, the first frame having a first base; c) a second frame that spans between the vessels, the second frame having a second base; d) the frames being spaced apart and being connected to the vessels in a configuration that spaces the vessels apart; e) at least one of the first and second frames extending upwardly in an inverted u-shape, providing a space under the frames and in between the vessels, enabling a marine vessel to be positioned in between the vessels and under the frames; f) a grab supported under the frame with a plurality of cables, the grab comprised of first and second three dimensional truss sections and a beam, each truss section pivotally mounted to the beam; and g) some of the cables lifting and lowering the beam, other of the cables opening the truss sections by moving them away from each other or closing the truss sections by moving them together or toward each other.