Dispensing – Processes of dispensing
Patent
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.
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patent: 4867341 (1989-09-01), Thomas
Lakhan Haresh C.
Thomas John E.
Ecolab Inc.
Huson Gregory L.
Rolla Joseph J.
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