Patent ID: 7506775

Claim:
A standard shipping container having a roof and a mast support system removably affixed to said roof, comprising: said container roof having a hollow corner, said corner having a top surface with an elliptical aperture therethrough, the elliptical aperture having dimensions comprising a length and a width, a screw having a threaded rod, a post comprising first and second tubes, wherein the first tube is removably affixed to, and in vertical alignnment with, the second tube; said first tube having an upper end and a lower end, said first tube having a solid cylinder at the lower end, said cylinder having a threaded hole recieving the threaded rod of the screw, and means to removably affix said post to the container roof, said means comprising a foot having dimensions as compared to the dimensions of the elliptical aperture of the top surface of the corner of the container, as follows: a length less than the length of the elliptical aperture, but greater than the width of the elliptical aperture, and a width less than the length and the width of the elliptical aperture, wherein said foot has an aperture through the surface thereof recieving the threaded rod of the screw, and wherein said threaded rod passes through the aperture in said foot and into said threaded hole of said cylinder wherein the foot is positioned within the hollow corner of the top surface of said container roof.