Piston vibratory pump

Details Piston vibratory pump Piston vibratory pump

2008-04-08

2008-04-08

Kramer, Devon C. (Department: 3746)

Pumps

Expansible chamber type

Pumping member position controlled port

C417S437000, C417S439000, C417S490000, C417S255000, C417S234000, C222S146500, C222S146600, C222S333000, C239S332000

Reexamination Certificate

active

07354255

ABSTRACT:
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.

REFERENCES:
patent: 4406406 (1983-09-01), Knapp
patent: 4792096 (1988-12-01), Gregory
patent: 5716007 (1998-02-01), Nottingham et al.

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