Flow discharge valve
US5125546A · kind A · utility
26Cited by
11References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1990 |
| Grant date | Jun 30, 1992 |
| Priority date | — |
| Expiry date | Jul 11, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process and a discharge valve assembly are provided for regulating the flow of a liquid product from an aerosol container which is pressurized with a permanent gas propellant. The liquid product is conveyed under pressure to a mixing region and the propellant gas is separately conveyed to the mixing region. The mixture is passed through at least one choke restrictor that is located between the mixing region and the discharge nozzle. The mixture expanding downstream of the restrictor forms a foam-like mixture internally of the valve assembly and prior to discharge of the mixture from the exit nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.