Abstract: A light-weight composite structural member including an elongated body having at least one internal recess with a tensioned cable in the recess or series of recesses. End pieces on each end of the elongated body secure the cable, which is connected to each end piece. The composite structural member is light-weight with relatively thin walls while providing enhanced benefits for resisting the combination of tension, compression and buckling forces.

Abstract: A brush including layers of bristles used with a handle. Plates, with bristles connected to a base at one end, are retained by the handle. Certain stackable plates may also be interconnected by a set of hinges. Plates can be of a unitary plastic construction and can be stacked or folded upon one another to form layers of plates with bristles. A corrugated layer is adjacent to a first plate or between two plates. The corrugated layer has a base and corrugated bristles extending from an end of the base, with the corrugated bristles preferably shaped in alternating ridges and grooves. The corrugated layer is stiffer than an adjacent plate of bristles and assists with liquid retention of the brush. Recesses or holes in the ridges of the corrugated bristles can aid with liquid retention in the brush before applying the liquid on a surface.

Abstract: A brush including removable plates with tines that can be inserted into a complementary handle. The plates, made up of tines connected to a manifold at one end, are retained by the handle. Removable flat plates can be of a unitary construction and can be rolled, stacked or folded upon one another to form layers of tines. The plates are designed to be easily separated from a brush after use to allow for cleaning or replacement. The plates may also be interconnected by a set of hinges. The tines may include a plurality of flutes or ribs that increase the surface area of the tines and aid in increasing liquid retention when the brush is being used. After use, the individual plates can be removed from the handle and easily cleaned.