Dispensing – Jarring and/or vibrating – Hand manipulable shaker type
Patent
1974-02-11
1976-09-21
Tollberg, Stanley H.
Dispensing
Jarring and/or vibrating
Hand manipulable shaker type
222227, 222242, B67D 554
Patent
active
039814173
ABSTRACT:
A mass of particulate material stored in a hopper is bottom unloaded and passed through several stages of aeration and fluidization to condition the material and place it in a relatively uncompacted state. The material is conditioned with a minimum of vibration of the material mass so that the mass remains a homogeneous mixture of densities and does not stratify into powdery and coarse materials. The conditioned material is fed to a distributor ring wherein it is further aerated and fluidized into an uncompacted state and moved in a uniform volumetric flow through an annular array of holes into a pneumatic conveyor. Because the material is placed in an uncompacted state while being maintained as a homogeneous mixture of densities, a very precise mass of material may be metered out as a linear function of the time of delivery. With the present system, preselected masses of material can be delivered with extremely high accuracy.
REFERENCES:
patent: 676391 (1911-06-01), Cope
patent: 2435039 (1948-01-01), Harper
patent: 2833445 (1958-05-01), Spiers
patent: 3373901 (1968-03-01), Pfeuffer
patent: 3804303 (1974-04-01), Fassauer
Fassauer Industries, Inc.
Tollberg Stanley H.
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