Liquid pump and nebulizer constructed therewith
US5203506A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1991 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Dec 16, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B3/082
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A liquid pumping device, particularly useful as nebulizer, includes a receptacle for receiving a quantity of a liquid to be pumped, a hollow conical tube having a small-diameter end located to be immersed in the liquid to be pumped, and a larger-diameter end located above the liquid to be pumped, and a drive for rotating the hollow conical tube about its longitudinal axis to pump by centrifugal force liquid therethrough from its small-diameter end to its larger-diameter end. When the device is used as a nebulizer the hollow conical tube includes a plurality of holes at vertically spaced locations, and a plurality of annular discs secured to the outer surface of the conical tube each underlying one or more of the holes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.