Peristaltic pulse dampener
AssigneesRobert C. Geschwender, Donna J. Geschwender
InventorRobert C. Geschwender
Life of this patent
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Abstract
A peristaltic pump dampener apparatus includes a first chamber and a second chamber separated by a flexible diaphragm. The first chamber of the peristaltic pulse dampener apparatus receives a first input flow tangent to the walls of the first chamber, and the second chamber of the peristaltic pulse dampener apparatus receives a second input flow tangent to the walls of the second chamber. The flexible diaphragm of the peristaltic pulse dampener apparatus acts to equalize the pressure between the first chamber and the second chamber so as to generate two substantially even, constant output flows.
Claims18
An apparatus comprising:
- a chamber assembly, wherein the chamber assembly defines an open cavity;
- a flexible diaphragm disposed within the chamber assembly, wherein the flexible diaphragm divides the open cavity into a first chamber and a second chamber;
- a first input line configured to receive a first input flow and direct first input flow into the first chamber tangent to a wall of the first chamber, and a first output line configured to receive a first output flow and direct the first output flow out of the first chamber;
- and
- a second input line configured to receive a second input flow and direct the second output flow into the second chamber tangent to a wall of the second chamber, and a second output line configured to receive a second output flow and direct the second output flow out of the second chamber;
- wherein the first input flow and the second input flow exhibit sinusoidal pumping patterns which are out of phase with one another.
A method, comprising:
- providing a peristaltic pulse dampener apparatus, wherein the apparatus includes a first chamber and a second chamber separated by a flexible diaphragm;
- inputting a first peristaltic pump flow with a first sinusoidal pumping pattern into the first chamber of the peristaltic pulse dampener apparatus tangent to a wall of the first chamber;
- inputting a second peristaltic pump flow with a second sinusoidal pumping pattern into the second chamber of the peristaltic pulse dampener apparatus tangent to a wall of the second chamber, wherein the first sinusoidal pumping pattern and the second sinusoidal pumping pattern are out of phase with one another;
- outputting a first output flow from the first chamber;
- and
- outputting a second output flow from the second chamber.
A system, comprising:
- a peristaltic pump;
- and
- a peristaltic pump dampener apparatus, wherein the peristaltic pump dampener apparatus includes:
- a chamber assembly, wherein the chamber assembly defines an open cavity;
- a flexible diaphragm disposed within the chamber assembly, wherein the flexible diaphragm divides the open cavity into a first chamber and a second chamber;
- a first input line configured to receive a first input flow from the peristaltic pump and direct the first input flow into the first chamber tangent to a wall of the first chamber, and a first output line configured to receive a first output flow and allow the first output flow to exit the first chamber;
- and
- a second input line configured to receive a second input flow from the peristaltic pump and direct the second input flow into the second chamber tangent to a wall of the second chamber, and a second output line configured to receive a second output flow and direct the second output flow out of the second chamber;
- wherein the first input flow and the second input flow exhibit sinusoidal pumping patterns which are out of phase with one another.
Dependencies are inferred from the claim text.