Patent ID: 8915411

Claim:
A device as part of a utility rack system used to transport articles capable of use with vehicles and trailers in tow by said vehicles comprising in combination: a) at least two rigid elongated members hereinafter more conveniently referred to as rail(s), attached to vehicle or trailer with said rail's longitudinal sides mounted as parallel as possible to each other, b) a cassette having means to attach or carry articles for transport or storage being assembled with two or more bar assemblies and a rigid member connecting said bar assemblies, said rigid member can either be an integral element to the cassette or the load itself, said bar assemblies having slots of a shape to receive said rails; said slot shapes of sufficient size to allow sliding along longitudinal length of said rails, said bar assemblies having means to negate spatial clearance between said bar assembly and said rail in at least one axis normal to longitudinal axis of said rail thereby having means to temporarily or removably fix said cassette to said rail.