US Patent 10888490 Scalp massager

The scalp massager comprises a motorized hub that is mechanically linked to a plurality of radial arms. A massage ball at the end of each radial arms pressed against the scalp and the oscillatory motion of the radial arms causes the massage balls to move in a complex pattern. The arms comprise bent rods made from a resilient material that provides the springiness necessary to press the massage balls against the scalp. The oscillatory motion is provided by a battery-driven electrical motor located within the hub. A dial on the hub allows the user to turn the motor on or off and to control the speed of the motor.