Coating processes – Spraying – Moving the base
Patent
1982-08-11
1984-08-14
Beck, Shrive P.
Coating processes
Spraying
Moving the base
118 24, 118313, 118684, 118685, 118697, 118698, B05D 102
Patent
active
044657145
ABSTRACT:
Articles such as fruit on a conveyor are spray coated with liquid wax from a transverse row of sequentially pulsed spray nozzles controlled by microcomputer signals to solenoid nozzle valves. The computer is programmed to receive inputs from operator controlled panel switches which can be set to select the number of nozzles in the row; an excursion time during which all nozzles in a row spray and a pulse time during which one nozzle sprays. The computer limits the nozzle pulse time to dwell time equal to the quotient of the number of nozzles and the pulse time. The nozzles are automatically cleaned out by compressed air if the supply of fruit to the conveyor is interrupted for a predetermined period of time.
REFERENCES:
patent: 2675778 (1954-04-01), Peeps
patent: 2696449 (1954-12-01), Ericks et al.
patent: 2804764 (1957-09-01), Ruton
patent: 3107183 (1963-10-01), Way et al.
patent: 3477870 (1969-11-01), Boretti et al.
patent: 4142684 (1979-03-01), Schweitzer
Beck Shrive P.
FMC Corporation
Megley Richard B.
Pizzanelli Louis J.
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