US Patent 9970730 Archery bow overdraw sensing and light indicator system

Archery bow overdraw or under draw sensing system is comprised of four main parts: (1) a force sensing resistor (FSR) on the bow limb near a cam between the draw stop on the cam and the bow limb where the draw stop rests on the bow limb at full draw or on the grip; (2) at least one LED light mounted on or adjacent to the bow sight; (3) a controller for reading the force of the draw stop on the force sensing resister (FSR) and controlling the on/off function of the LED; and (4); and a power source for the system.