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US 12,680,540 B2Granted
Peristaltic pump
AssigneeKeurig Green Mountain, Inc.
InventorsJiann Chen, Mario Liuzza
Life of this patent
Estimating the term…
Abstract
A peristaltic pump can include radially movable lobes (4) to selectively contact a pump conduit (22) to drive fluid flow or permit free flow through the conduit. Lobes can be caused to move radially outwardly to engage a pump conduit in response to forward and reverse drive rotations of the lobes and/or a carrier (3) on which the lobes are mounted. Lobes can be contacted by a drive element (13) to move the lobes radially outwardly and to drive pump operation.
Claims20
A peristaltic pump comprising:
- a housing defining a cavity configured to hold a flexible pump conduit;
- a carrier mounted in the cavity for rotation relative to the housing;
- a lobe mounted for rotation with the carrier and configured to contact and compress the flexible pump conduit against the housing to cause fluid movement in the flexible pump conduit, the lobe being mounted to the carrier for radial movement;
- and
- a drive motor configured to rotate the carrier and lobe in a first direction and a second direction opposite the first direction, wherein the carrier and lobe are configured to move the lobe from a radially retracted position to a radially extended position in response to rotation of the carrier and lobe by the drive motor in both the first direction and the second direction.
2 more elements
A peristaltic pump comprising:
- a housing defining a cavity configured to hold a flexible pump conduit;
- a carrier mounted in the cavity for rotation relative to the housing;
- a lobe mounted for rotation with the carrier and configured to contact and compress the flexible pump conduit against the housing to cause fluid movement in the flexible pump conduit, the lobe being mounted to the carrier for radial movement;
- and
- a drive motor configured to contact the lobe to move the lobe radially outwardly to contact the flexible pump conduit and to rotate the lobe and carrier about a drive axis to cause the fluid movement in the flexible pump conduit.
2 more elements
Dependencies are inferred from the claim text.