Contractile actuated bellows pump
US6059546A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1999 |
| Grant date | May 9, 2000 |
| Priority date | — |
| Expiry date | Jan 26, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2251/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump for impelling a fluid includes a first variable volume, the first variable volume having a first inlet for allowing the influx of the fluid into the first variable volume and a first outlet for allowing the efflux of the fluid out of the first variable volume and a first membrane defining at least a portion of the first variable volume. The pump also includes a first contractile actuator, for displacing the first membrane from a first position to a second position in such a manner as to vary the first variable volume and a second contractile actuator, for restoring the first membrane from the second position to the first position in such a manner as to vary the first variable volume. A first check valve is coupled to the first inlet for regulating the influx of fluid into the first variable volume through the first inlet and a second check valve is coupled to the first outlet for regulating the efflux of the fluid out of the first variable volume through the first outlet. In a preferred embodiment, at least one of the first and second contractile actuators is a linear actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.