Device for dosage of substances

Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition

Reexamination Certificate

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Details

C422S091000, C436S180000, C222S420000, C347S100000

Reexamination Certificate

active

07931869

ABSTRACT:
A device for dosage of substances having a substance intake portion, which included at least one substance compartment for the intake of substance to be dosed, an emptying portion for the emptying the substance compartment and a weighing balance for the determination of the quantity of dosed substance, wherein the substance intake portion includes a plurality of substance compartments, which are able to be individually emptied. The device further includes a control means, which control the emptying of the substance compartments in a manner dependent on the quantity of dosed substance, which is determined by means of the weighing balance.

REFERENCES:
patent: 4368684 (1983-01-01), Launay
patent: 5402834 (1995-04-01), Levin et al.
patent: 2002/0084290 (2002-07-01), Materna
patent: 0 616 276 (1994-09-01), None
patent: 0 731 344 (1996-09-01), None
patent: WO 02/04900 (2002-01-01), None
patent: WO 02/29369 (2002-04-01), None

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