Filter for a fluidized bed powder coating apparatus

Details Filter for a fluidized bed powder coating apparatus Filter for a fluidized bed powder coating apparatus

1989-03-09

1990-01-16

Nozick, Bernard

Gas separation

Two or more separators

Spaced for parallel flow of gas

55525, 118629, 118308, 427182, B01D 4600

Patent

active

048940755

ABSTRACT:
A filter for a fluidized bed powder coating apparatus is located within the fluidized hopper and fits about the end of a tubular conduit connecting the hopper to a spray gun. The filter is an enclosure having a plurality of holes through its walls which are sized to exclude particles from the conduit which would clog small orifices of the spray gun or associated venturi. The filter also acts to break up clumps of coating particles and to retain contaminant particles which may clog the venturi and gun. Preferably, the filter is made of expanded metal and is sized to sit in the fluidized bed of coating particles without unduly interfering with the flow of air into the hopper.

REFERENCES:
patent: 1573656 (1926-02-01), Terhune
patent: 2021853 (1935-11-01), Curley
patent: 4795094 (1989-01-01), Correard

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