Variable volume peristaltic pump
US4288205A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 18, 1980 |
| Grant date | Sep 8, 1981 |
| Priority date | — |
| Expiry date | Jan 18, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B43/1253
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A peristaltic pump driven by a single speed power source has a fixed length of flexible wall tubing circumferentially positioned between the wall of the inner chamber and an adjustable band. The flexible band has one end fixed to the pump housing and the other to an adjusting screw. Turning the adjusting screw varies the effective length of the adjustable band and consequently the degree of contact with the flexible wall tubing. Increasing the effective length of the adjustable band flattens the tubing against the wall, thereby changing the volumetric capacity of the tubing and delivery rate of the pump. Decreasing the effective length of the adjustable band has the opposite effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.