Peristaltic pump
US9518576B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2011 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Mar 16, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B43/1276
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A peristaltic pump includes a rotating member operably coupled to a drive. The rotating member includes a plurality of rollers arranged in a circular configuration. A guide member defines a channel configured to direct a peristaltic tube around the rotating member so that the peristaltic tube interfaces with the plurality of rollers. The peristaltic tube is pressed against the plurality of rollers by a retaining shoe. The retaining shoe contains surface irregularities configured to restrict movement of the peristaltic tube. A keeper braces the restraining shoe against the peristaltic tube. The rotating rollers compressing the peristaltic tube against the retaining shoe as the rotating member rotates results in a peristaltic action that produces a nearly pulse free linear flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.