Hydrodynamic blueberry sorting

Details Hydrodynamic blueberry sorting Hydrodynamic blueberry sorting

1978-11-20

1980-09-30

Knowles, Allen N.

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Sorting special items or sorting by methods and apparatus...

209173, 209645, 209932, B07C 502

Patent

active

042254248

ABSTRACT:
Blueberry sorting, i.e. classifying, and apparatus therefor, to separate ripe berries from unripened berries and stems, by dynamically immersing all of the berries beneath the surface of a water bath, the unripened berries being controllably allowed to rise to float on the surface of the bath, the ripe berries being deposited on a submersed conveyor and conveyed out of the bath to a separate location. Berry immersion is achieved hydrodynamically by a downward stream of water which propels the berries down to cause release of gas bubbles on the ripe berry surfaces, carry them through a flow zone to the conveyor and then recirculate.

REFERENCES:
patent: 1681627 (1928-08-01), Sawyer
patent: 2530676 (1950-11-01), Berg et al.
patent: 2554495 (1951-05-01), Key
patent: 2976992 (1961-03-01), Bloch

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