Dispensing – With discharge assistant – Plural
Patent
1982-01-21
1984-02-28
Rolla, Joseph J.
Dispensing
With discharge assistant
Plural
222360, B67D 552
Patent
active
044337981
ABSTRACT:
An apparatus for volumetrically dosing particulate matter, such as tea to be loaded into bags, comprises a housing whose lower part is kept filled through a hopper with the mass of particles above the top of a dosing drum which is intermittently rotatable just above the housing bottom about a generally vertical axis and has several outwardly open, angularly equispaced through-going peripheral notches of constant horizontal cross-section. A discharge compartment of the housing accommodates a segment of the drum, including two of its notches, and has an entrance gate closely hugging the drum surfaces so that only the particles occupying a notch can reach that compartment. A first plunger then enters an incoming notch from above and expels a predetermined fraction of its contents into an underlying trough from which the resulting overflow is recirculated by a screw conveyor to the interior of the housing outside the metering compartment; after a partial rotation of the drum, a second plunger enters the same notch from above and ejects its remaining contents into a discharge spout aligned therewith.
REFERENCES:
patent: 2878970 (1959-03-01), Dobkin
patent: 3737073 (1973-06-01), Lapert
Industria Macchine Automatiche
Noland Kenneth
Rolla Joseph J.
Ross Karl F.
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