Method and apparatus for dispensing powdered pesticide

Details Method and apparatus for dispensing powdered pesticide Method and apparatus for dispensing powdered pesticide

1989-04-14

1990-08-14

Rolla, Joseph J.

Dispensing

Processes of dispensing

222630, 222195, 222396, 222464, 222529, 406 38, 406 90, 406146, 239310, B67B 700

Patent

active

049480138

ABSTRACT:
Disclosed is a method and apparatus (10) for dispensing powdered pesticide (13). A housing (11) is separated into an upper chamber (12) and lower chamber (51) by a porous media layer (19). The powdered pesticide (13) is contained within the upper chamber (13) and is fluidized when compressed air enters the dispenser from air inlet line (18). The fluidized pesticide is dispensed through adjustable dip tube (26), outlet line (34) and nozzle (36) when a control valve (50) is activated. Only particles having a size smaller than a predetermined size are dispensed; the remaining, relatively large pesticide particles remain in the upper chamber until physically removed.

REFERENCES:
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patent: 2586761 (1952-02-01), Eskola
patent: 2922586 (1960-01-01), Hardinge
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patent: 3004721 (1961-10-01), Notzold
patent: 3168254 (1965-02-01), Kilboy
patent: 3524594 (1970-08-01), Anderson
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patent: 4371295 (1983-02-01), Hart
patent: 4474327 (1984-10-01), Mattson et al.
patent: 4561598 (1985-12-01), Musschoot
patent: 4600129 (1986-07-01), Kondo
patent: 4678377 (1987-07-01), Bouchard
patent: 4867341 (1989-09-01), Thomas

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