The present invention is an improved vibratory pumping mechanism that
increases the efficiency of utilization of the vibratory motion within a
mechanism. More specifically, the mechanism includes a central chamber
within which a piston is oscillated to draw fluid into the chamber and
expel fluid from within the chamber outwardly through a nozzle connected
to the chamber. The chamber includes a pressure tube connected to a
rearward end of the chamber and to a secondary chamber positioned around
and in fluid communication with the chamber. The pressure tube allows the
negative pressure generated by the motion of the piston in either
direction to be utilized in preventing any fluid from being directed out
of the mechanism in a direction other than through the nozzle, thereby
increasing the efficiency of the pump.