US Patent 10076679 Weightlifting plates

Weightlifting plates might be constructed of various materials. For example, a density-adjustable composition might be used that allows respective weight amounts plates to differ, while the plate volumes remain consistent. As such, in a set of weightlifting plates, each plate in the set includes a common volume (e.g., diameter and thickness) and a different respective weight amount. In addition, the weight plates can be combined with a barbell.