Fluidized bed-gas coater apparatus

Details Fluidized bed-gas coater apparatus Fluidized bed-gas coater apparatus

1976-10-06

1978-03-28

Kaplan, Morris

Coating apparatus

With cutting, punching or tearing of work

Web or sheet work

23264, 34 57E, 118DIG5, 427 6, 427213, C23C 1308

Patent

active

040809277

ABSTRACT:
A method and multiple embodiments of apparatus for coating particles with a substance contained in a reactant gas, the particles being suspended in a fluidized bed within a coating chamber. In the method and each embodiment of the apparatus, the reactant gas is introduced into the coating chamber through an elongated nozzle closed at its upper end and including multiple lateral orifice openings for directing the reactant gas radially outwardly into the coating chamber. Means are preferably arranged about the base of the nozzle for introducing levitating gas radially and spirally outwardly into the chamber to further promote circulation of the particles and to accomplish more uniform coating.

REFERENCES:
patent: 3215508 (1965-11-01), Piester
patent: 3251337 (1966-05-01), Latta et al.
patent: 3398718 (1968-08-01), Pilloton
patent: 3822140 (1974-07-01), Gyarmati et al.
patent: 3839077 (1974-10-01), Robinson

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