Nebulizer with negative pressure structure
US9566400B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2012 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Oct 23, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B17/0646
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A nebulizer with a negative pressure structure includes a nebulization body, a carrying cavity, a nebulizing element and a negative pressure generating element. The carrying cavity is provided for carrying a nebulized liquid and has a through hole. The nebulizing element is installed at the through hole and includes a piezoelectric driving unit and a nebulizing plate disposed on a side of the piezoelectric driving unit. The negative pressure generating element is formed on the carrying cavity and provided for changing the volume of the carrying cavity or removing air from the carrying cavity to reduce the air pressure in the carrying cavity, so as to nebulize a liquid of low surface tension or high viscosity effectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.