Multiple filter/cyclone air filtration apparatus with single, mo

Details Multiple filter/cyclone air filtration apparatus with single, mo Multiple filter/cyclone air filtration apparatus with single, mo

1987-02-24

1989-04-25

Beck, Shrive

Coating apparatus

Projection or spray type

With hood or offtake for waste material

118634, 118DIG7, 118308, 981152, 55302, 55294, 55337, 55284, 55DIG46, B05B 1512

Patent

active

048237310

ABSTRACT:
An electrostatic dry powder coating spraying system has a multi-color powder coating recovery system comprising a plurality of vertically extending cyclonic filter barrels laterally spaced about a central vertical axis and having vertically aligned upper ends. A single filter cleaning apparatus, including a filter backflushing system, is adapted to rest upon and operatively engage any selected one of such upper barrel ends, and is operative to backflush the filter within the barrel upon which it rests. Oversprayed powder from the spraying system is reclaimed by drawing it through the "active" filter barrel to which the filter cleaning apparatus is connected. To effect a rapid powder color changeover in the recovery system, the filter cleaning apparatus is mounted on a vertically extending support mechanism which is operative to move the filter cleaning apparatus upwardly from its filter barrel, permit the elevated filter cleaning apparatus to be pivoted into alignment with a second filter barrel, and then lower the pivoted filter cleaning apparatus into operative engagement with the second filter barrel.

REFERENCES:
patent: 2026834 (1936-01-01), Holly
patent: 2678109 (1954-05-01), Yedder
patent: 3280979 (1966-10-01), King
patent: 3777706 (1973-12-01), Kaufman
patent: 3801869 (1974-04-01), Masuda
patent: 4277260 (1981-07-01), Browning
patent: 4306890 (1981-12-01), Gustavsson et al.
patent: 4388087 (1983-06-01), Tipton
patent: 4430956 (1984-02-01), Koch, II
patent: 4544389 (1985-10-01), Howeth
patent: 4545326 (1985-10-01), Browning

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