Apparatus and method for encapsulating seeds and the like

Details Apparatus and method for encapsulating seeds and the like Apparatus and method for encapsulating seeds and the like

1987-11-25

1989-02-21

Silbaugh, Jan H.

Coating processes

Plant member or animal specimen coating

47 576, 118506, 118712, 264 5, 425 10, 427 8, 427212, A01C 106

Patent

active

048063576

ABSTRACT:
A device for encapsulating seeds in a gel. A nozzle with dual vertical, rectilinear, concentric tubes--i.e., an inner tube and an outer tube--is supplied with gel that is fed into the outer tube. The gel goes down the outer tube to an outlet from the inner tube, so that a meniscus of gel is stretched across the outlet. Singulated seeds are fed into an inlet of the inner tube, so that each seed--and only one--drops down upon a meniscus of gel. A slight puff of air is caused to pass down the inner tube and slightly inflate the meniscus upon which a seed has dropped. More gel is fed, to cause the meniscus to separate from the outlet and form a drop of gel with a seed inside, which drops down into a fixative bath that causes the gel to set.

REFERENCES:
patent: 2766478 (1956-10-01), Raley, Jr. et al.
patent: 4344787 (1982-08-01), Wang et al.
patent: 4670035 (1987-06-01), Lee et al.

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