Dispensing – With discharge assistant – Fluid pressure
Patent
1993-09-13
1994-09-20
Kashnikow, Andres
Dispensing
With discharge assistant
Fluid pressure
2224021, B65D 8300
Patent
active
053481992
ABSTRACT:
In an aerosol valve the flow path includes a compartment having an inlet into the compartment and a valve seat at the upper end of the compartment, a pocket is disposed downward from the seat opening, the pocket containing a gravity-responsive ball. When the valve is being used in dispensing and is tipped in a direction which brings the ball closer to the flow through the compartment, the ball becomes entrained in the fluid flow and flies up to seat on the valve seat to block it off, precluding further discharge. When the aerosol valve is released, a bypass raises the pressure inside the valve body so that the ball will fall away from the seat. The purpose is to avoid the escape of propellant which might occur in tipping if the lower end of the dip tube is exposed to the head space.
REFERENCES:
patent: 3186605 (1965-06-01), Potoczky
patent: 4124201 (1978-11-01), Spitzer et al.
patent: 5186201 (1993-02-01), Warren
Derakshani Philippe
Hoopes Dallett
Kashnikow Andres
Summit Packaging Systems, Inc.
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