Aerosol dispenser
US4702418A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1985 |
| Grant date | Oct 27, 1987 |
| Priority date | — |
| Expiry date | Sep 9, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B17/0638
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An aerosol dispenser including a nozzle chamber for holding fluid to be dispensed and a diaphragm forming at least a portion of the chamber and having an aerosol dispensing nozzle disposed therein. The chamber includes a nozzle region proximate the nozzle and a larger reservoir region interconnected to the nozzle region. There is a restrictive passage for introducing fluid from the reservoir region to the nozzle region and restricting backflow from the nozzle region to the reservoir region. A driver, typically a piezoelectric bender, is provided to drive fluid from the reservoir region to the nozzle region and from the nozzle region through the nozzle to create an aerosol spray.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.