Piston vibratory pump

A vibratory pump comprising:

• a) a first chamber including an outlet end and at least one first aperture extending through the first chamber;
• b) a second chamber at least partially surrounding the first chamber and including at least one pipe insertable into a fluid reservoir and extending outwardly from the second chamber;
• c) a pressure reduction tube connected between an exterior surface of the first chamber generally opposite the outlet end and an exterior surface of the second chamber;
• d) a piston slidably disposed within the first chamber;
• and
• e) an oscillating mechanism operatively connected to the piston.

A method for pumping a fluid, the method comprising the steps of:

• a) providing vibratory pump including a first chamber, including an outlet end and at least one first aperture extending through the first chamber, a second chamber at least partially surrounding the first chamber and positionable in fluid communication with an unpressurized first reservoir, and pressure reduction tube connected between an exterior surface of the first chamber and an exterior surface of the second chamber, a piston slidably disposed within the first chamber, and an oscillating mechanism operatively connected to the piston;
• b) placing the second chamber in fluid communication with the unpressurized first fluid reservoir;
• and
• c) operating the pumping mechanism.

A vibratory pump comprising:

• a) a first chamber including an outlet end and at least one first aperture extending through the first chamber;
• b) a second chamber at least partially surrounding the first chamber and positionable in fluid communication with a first fluid reservoir;
• c) a pressure reduction tube connected between the first chamber and the second chamber;
• d) a piston slidably disposed within the first chamber;
• and
• e) an oscillating mechanism operatively connected to the piston, wherein the pump does not include any valves.