In implementing the present invention, the spring less motor includes a buried magnet system having a significant, linear centering force and a high enough stiffness which acts as a spring with a certain stiffness to drive a piston a specific stroke length and to enable the spring less motor to be resonant at {HEAD ~ a frequency} near {TAIL ~ an AC supply frequency} 
In implementing the present invention , the spring less motor includes a buried magnet system having a significant , linear centering force and a high enough stiffness which acts as a spring with a certain stiffness to drive a piston a specific stroke length and to enable the spring less motor to be resonant at { HEAD ~ a frequency } near { TAIL ~ an AC supply frequency }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL