Method for operating a peristaltic pump
US10006453B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2013 |
| Grant date | Jun 26, 2018 |
| Priority date | — |
| Expiry date | Dec 29, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B53/10
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A peristaltic pump comprises a flexible tube, a compression mechanism being actuatable for compressing the flexible tube, an upstream valve mechanism being actuatable to selectively open or close the tube upstream of the compression mechanism and a downstream valve mechanism being actuatable to selectively open or close the tube downstream of the compression mechanism. A drive mechanism actuates the compression mechanism, the upstream and downstream valve mechanisms. A pressure sensor measures a pressure signal indicative of a pressure in the tube between the upstream and downstream valve mechanisms. First and second signal values indicative of a pressure value downstream the downstream valve mechanism and upstream the upstream valve mechanism, respectively, are computed from the measured pressure signal. A threshold value is computed from the first and second signal values, and the measured pressure signal or a derived signal parameter is compared with the threshold value to detect a fault condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.