Peristalic rubber impeller pump
US6095776A · kind A · utility
9Cited by
2References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 8, 1997 |
| Grant date | Aug 1, 2000 |
| Priority date | — |
| Expiry date | Sep 8, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C5/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fluid handling pump for precise metering applications includes a flexible impeller mounted on a shaft that is eccentric to the centerline of a cylindrical chamber of the pump's housing. The impeller includes a plurality of flexible walls, that cooperate with an integrally molded hub and a rim like spokes, to define a plurality of compressible chambers. During rotation of the impeller, the volume of the compressible impeller chambers varies from a maximum in passing the pump's suction port to a minimum when sweeping past the pump's discharge port. In this way, a peristaltic pumping action takes place.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.