US Patent 9518796 Powered bow having an internal acceleration system

A leveraged bow for launching a projectile, the bow having a stock, a butt region and a grip region, and a fore-end supporting a pair of bow arms. The fore-end includes a top surface for receiving and supporting the projectile and a carriage assembly slidably mounted with an interior region of the fore-end. A main bow power string is coupled to the carriage. The carriage also has a launch string associated therewith which is powered by the movement of the main bow power string. A trigger and latch are used to release the bow power string and, in turn, the launch string to leverage the velocity of the arrow being propelled by the bow.