Wurster fluid bed coater with agglomeration enhancement screen

Details Wurster fluid bed coater with agglomeration enhancement screen Wurster fluid bed coater with agglomeration enhancement screen

2006-12-12

2006-12-12

Fiorilla, Chris (Department: 1734)

Coating apparatus

Projection or spray type

Coating moving mass of solid particulate work

C118SDIG009, C427S185000, C427S213000

Reexamination Certificate

active

07147717

ABSTRACT:
An improved Wurster-type coater including a separator screen located within the Wurster tube in surrounding relationship to the spray nozzle and forming an annular volume through which at least a portion of smaller feed material particles are permitted to preferentially enter the spray pattern before the larger-sized particles can do so, thereby causing the smaller particles to become agglomerated first, resulting in finished product having a more even distribution of particle sizes.

REFERENCES:
patent: 6579365 (2003-06-01), Jones et al.

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