Combination discharge and refill valve for unit dose dispenser

Details Combination discharge and refill valve for unit dose dispenser Combination discharge and refill valve for unit dose dispenser

1992-04-13

1993-04-06

Shaver, Kevin P.

Dispensing

With discharge assistant

Fluid pressure

2224022, B65D 3700

Patent

active

051996162

ABSTRACT:
Dispensing apparatus incorporates a pressurized liquid reservoir and associated manually operable dispensing valve and a pressurized gas reservoir and associated manually operable valve respectively connecting the reservoirs to a common spray orifice. The valves are adapted to be simultaneously operated whereby a metered burst of gas from the gas reservoir breaks up a metered burst of liquid from the liquid reservoir. The liquid dispensing valve has a discharge bore through which the liquid is discharged and a check valve such that the pressurized reservoir may be refilled through the discharge bore.

REFERENCES:
patent: 2746796 (1956-05-01), St. Germain
patent: 2839225 (1958-06-01), Soffer et al.
patent: 3058629 (1962-10-01), Gawthrop
patent: 3674185 (1972-07-01), Evesque
patent: 4892232 (1990-01-01), Martin

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