Dispensing – Automatic control – By the weight of the material in the supply container
Patent
1996-07-18
1998-08-04
Derakshani, Philippe
Dispensing
Automatic control
By the weight of the material in the supply container
222 61, 222 77, 222183, B67D 508
Patent
active
057881197
ABSTRACT:
A device for storing a liquid or pasty product and for dispensing a given quantity of the product includes a container that contains the product. A stopper is disposed at an upper end of the container. A dip tube extends through a channel of the stopper and into the container. A sealed enclosure receives the container such that the container can be subjected to a pressure higher than a pressure outside of the enclosure. A weighing element of the enclosure measures the weight of the container when the container is received in the enclosure. A controller controls a mechanism for pressurizing the enclosure by comparing a change in weight of the container with a set value that corresponds to a predetermined quantity of product to be ejected from the container, and interrupting pressurization of the container when the change in weight of the container has reached the set value.
REFERENCES:
patent: 2549207 (1951-04-01), Kestenbaum
patent: 3843020 (1974-10-01), Bardeau et al.
patent: 4013194 (1977-03-01), Moscarini
patent: 5007560 (1991-04-01), Sassak
Esclar Dominique
Gaubert Michel
Leitman Franck
"L'Oreal"
Derakshani Philippe
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