US Patent 9095991 Concrete vibrator head

A concrete vibrator head includes an elongated body having a front end and a back end. The back end of the vibrator head is attached to a rotating shaft which causes the vibrator head to vibrate at a desired vibration frequency. The elongated body is tapered from the front end to approximately halfway towards the back end. This taper may be defined by a continuous straight line slope of the outer surface of the elongated body, or a stepped slope formed from a series of interconnected cylindrical portions of the elongated body which increase in diameter from the front end to approximately midway on the elongated body of the vibrator head.