Electronic spray device improvements
US9452442B2 · kind B2 · utility
6Cited by
20References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2011 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Jun 16, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB06B1/0688
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electronic spray device comprising a spray generator and a spray controller for providing a drive signal to the spray generator, wherein the spray generator includes a perforate membrane which vibrates ultrasonically in response to the drive signal, said vibration causing liquid droplets to be ejected from one side of the perforate membrane, wherein the spray controller is adapted to modulate the drive signal sent to the spray generator, wherein such modulation of the drive signal is arranged to set the mean power level supplied to the spray generator to a target level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.