US Patent 11857826 Versatile weight bar assembly

A barbell assembly includes a main bar having a pair of opposing, internally threaded ends and a central collar. A longer extension bar includes an externally threaded post at a first end and a cap at the opposing end. A weight disc with a central aperture is slidable onto either the main bar or the extension bar depending upon an exercise to be performed. The main bar and weight disc can be used independently to perform a myriad of resistance exercises somewhat similar to a conventional dumbbell. Alternatively, the threaded post on the extension bar can be secured to either end of the main bar to allow a user to perform various exercises that require an elongated implement having a weighted end.