Hollow structure formed by rotational molding and method of manufacturing same

A hollow walled structure, said structure being configured for attachment to a wheeled trailer, and said structure comprising:

• a shell defining an interior compartment;
• a first support disposed within said interior compartment and engaging said shell at a first location on said shell and a second location on said shell;
• a second support engaging said shell at a third location on said shell and extending through said interior compartment to intersect said first support;
• a first fender extending from a first exterior side of said shell;
• and
• a second fender extending from a second exterior side of said shell, said first and second fenders being configured to substantially cover wheels of said trailer.

A liquid transport apparatus comprising:

• a tank including:
• a shell defining an interior compartment;
• a first support disposed within said interior compartment and engaging said shell at a first location on said shell and a second location on said shell, said first support including side walls, a front wall, and a rear wall, said side walls being interconnected with said front wall and said rear wall to form a duct extending through said interior compartment, said duct having a first opening through said shell at said first location on said shell and having a second opening through said shell at said second location on said shell;
• and
• a second support engaging said shell at a third location on said shell and extending through said interior compartment to intersect said first support;
• a frame supporting said tank;
• and
• wheels rotationally coupled to said frame.

A liquid transport apparatus comprising:

• a tank including:
• a shell defining an interior compartment;
• a first baffle disposed within said interior compartment and engaging said shell at a first location on said shell and a second location on said shell;
• and
• a support engaging said shell at a third location on said shell and extending through said interior compartment to intersect said first support;
• a second baffle disposed within said interior compartment and engaging said shell at fourth location on said shell and a fifth location on said shell, said second baffle being aligned with said first baffle;
• and
• a third baffle juxtaposed between said first and second baffles, said third baffle being removably engagable with one of said first and second baffles;
• a frame supporting said tank;
• and
• wheels rotationally coupled to said frame.

A liquid transport apparatus comprising:

• a tank including:
• a shell defining an interior compartment;
• a first support disposed within said interior compartment and engaging said shell at a first location on said shell and a second location on said shell;
• and
• a second support engaging said shell at a third location on said shell and extending through said interior compartment to intersect said first support;
• a frame supporting said tank;
• wheels rotationally coupled to said frame;
• a first fender extending from a first exterior side of said shell;
• and
• a second fender extending from a second exterior side of said shell, said first and second fenders substantially covering said wheels.