Patent ID: 8061289

Claim:
A catamaran lifting apparatus comprising: a) first and second marine vessels; b) a first frame that spans between the marine vessels; c) a second frame that spans between the marine vessels; d) the frames being spaced apart and being connected to the marine vessels in a configuration that spaces the marine vessels apart; e) the first frame connecting to the first vessel with a universal joint that enables rotation of the first frame relative to the first marine vessel about multiple axes and to the second vessel with a hinged connection that enables rotation about a single axis only; f) the second frame connecting to the second vessel with a universal joint that enables rotation of the rotation of the second frame relative to the second marine vessel about multiple axes, and to the first vessel with a hinged connection that enables rotation about a single axis only; g) each frame extending upwardly and providing a space under the frame and in between the vessels, enabling a package to be lifted to be positioned in between the marine vessels and under the frames; and h) wherein each frame provides a generally triangular support arrangement in plan view.