US Patent 7780575 Method and apparatus for parallett and ballet bar fixture

Triangular shaped smooth outside and cavities inside with a PVC parallett/ballet bar supported by blind holes at the top of a pair of triangular end caps. End cap bar opening has a ridged inside dimension that is tapered slightly from the inside to the outside surface areas. Tapering by ridged ramps located inside that bar opening, allows the end caps and bar to forcibly seize unto each other with a firm bond requiring no further fastening agent. Bar may include a filler pole for rigidity especially in longer length devices. End caps likewise seize and hold both a PVC bar and/or the PVC/filler insert combination.