Aerosol generators
US9522409B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2012 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Sep 27, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B17/0669
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An aperture plate is formed from a palladium nickel alloy comprising about 89% palladium and about 11% nickel. There is a generally fine substantially equiaxed grain microstructure throughout the thickness of the aperture plate. The average grain width (W) is in the range of from 0.2 μm to 5.0 μm, in some cases from 0.2 μm to 2.0 μm. Because the grain structure is equiaxed (L/W=1) the grain length (L) is the same as the grain width. The improved aperture plate extends the life of nebulizers, eliminates the risk of premature and unpredictable failure of a nebulizer in service, eliminates the risk of product returns from hospitals and patients, and eliminates the possible risk of fragments of the aperture plate breaking free from the nebulizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.