Patent ID: 8668056

Claim:
A modular weighting element to be combined with another modular element to form a ballast bar having an overall length, the modular weighting element comprising: a generally parallelepiped body having a length that is smaller than the overall length; and a first assembly part and a second assembly part of complementary shape, the first and second assembly parts being arranged on the body in a plane substantially parallel to the length in order to allow an assembly of said modular weighting element with reciprocal second and first assembly parts, respectively, of the other modular element, to thereby combine the length of said modular weighting element with a length of the other modular weighting element to extend their respective lengths and to form the ballast bar; where the ballast bar is adapted for stacking on top of other ballast bars along a dimension substantially orthogonal to the length to form an aggregate weight element, the generally parallelepiped body defines at least one long edge parallel to a longitudinal axis of the body, and at least one short edge along the dimension substantially orthogonal to the longitudinal axis, the first assembly part comprises at least two joint structures to engage with reciprocal structures of the at least one other modular element, and the first assembly part is oriented on the body in a manner so as to inhibit relative movement of the other modular element along the dimension.