Methods and apparatus for controlling piezoelectric vibration
US6546927B2 · kind B2 · utility
121Cited by
164References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2001 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Mar 13, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B12/081
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for aerosolizing a liquid comprises providing an aerosol generator having a plate with a plurality of apertures and a piezoelectric element to vibrate the plate. Liquid is supplied to the plate, and the piezoelectric element is energized to vibrate the plate at an initial frequency. The energy level is adjusted to vibrate the plate at its instantaneous resonant frequency during aerosolization of the liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.