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    Maritrans' double hull process receives patent

    News // February 23, 2001
    Maritrans in the US has obtained a patent on its proprietary process for rebuilding single hull tank vessels with internal double hulls.

    Together with M Daniel Jones of the Houston-based naval architecture firm Schuller & Allan, Maritrans says it has developed an innovative double-hull manufacturing process to rebuild single-hulled tank vessels with the double hulls required by the federal Oil Pollution Act of 1990 (OPA90). The process utilises computer-assisted design for fabricating modular internal hull sections.

    In 1998, Maritrans used the process to complete the rebuilding of the 10,549 gross-ton tank barge Maritrans 192 (formerly Ocean 192), which marked the first large single hull tank vessel to be rebuilt with a double hull to meet OPA's mandate.

    In 2000, Maritrans completed the rebuilding of the 16,021 gross-ton tank barge Maritrans 244 (formerly Ocean 244). Both vessels, now in full compliance with OPA90s requirements, are currently in service transporting petroleum products in the Gulf of Mexico.

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