Dispensing – With discharge assistant – Fluid pressure
Patent
1994-03-23
1995-12-26
Kashnikow, Andres
Dispensing
With discharge assistant
Fluid pressure
222449, 222635, 239573, B65D 8314
Patent
active
054779928
ABSTRACT:
Metered dose dispensing valves providing good dosage reproducibility with formulations having a propensity to cream and with low concentration formulations. Valves having a tank retaining cup have a small inlet aperture of no more than 0.7 mm and preferably the tank retaining cup follows the configuration of the end of the valve stem. Valves having a bottle emptier attached to the valve stem have a filling channel in the valve stem which protrudes only slightly from the metering chamber when the valve is in its inoperative position.
REFERENCES:
patent: 2886217 (1959-05-01), Thiel
patent: 3727806 (1973-04-01), Wilmot
patent: 4407481 (1983-10-01), Bolton et al.
patent: 4433797 (1984-02-01), Galia
patent: 4863073 (1989-09-01), Burt et al.
patent: 4867352 (1989-09-01), Meshberg
patent: 5037012 (1991-08-01), Langford
patent: 5337929 (1994-08-01), van der Heijden
European Search Report dated Jun. 15, 1994 for European application corresponding to this U.S. Application Ser. No. 08/216,644.
Jinks Philip A.
Thiel Charles G.
Wilde Trevor J.
Griswold Gary L.
Hulse Dale E.
Kashnikow Andres
Kaufman Joseph A.
Kirn Walter N.
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