Expandable impeller pump
US7393181B2 · kind B2 · utility
343Cited by
25References
46Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 15, 2005 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | Sep 15, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49229
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An impeller according to an example of the present invention comprises a hub, and at least one blade supported by the hub. The impeller has a deployed configuration in which the blade extends away from the hub, and a stored configuration in which the impeller is radially compressed, for example by folding the blade towards the hub. The impeller may comprise a plurality of blades, arranged in blade rows, to facilitate radial compression of the blades. The outer edge of a blade may have a winglet, and the base of the blade may have an associated indentation to facilitate folding of the blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.