FIELD: manual spraying devices, particularly to deliver liquid or semi-liquid contents by internal gaseous pressure, for instance aerosol containers.
SUBSTANCE: sprayer comprises flexible thin-walled product container and rigid inner propellant vessel. Inner vessel closing member comprises valve assembly including the first valve for propellant and the second valve for product. Product distribution channels are formed in valve rod. The third valve to be closed as a result of outlet orifice blockage is located below the second valve.
EFFECT: prevention of overpressure creation in outer container and, as a result, prevention of outer container damage.
20 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2107656C1 |
| VALVE ASSEMBLY | 2015 |
|
RU2676143C2 |
