Patent ID: 6685775
Filing Date: 2004-02-03
Classification: B01F,B01J,F26B,Y10S

Abstract:
An improved Wurster apparatus for coating a product, including a container with a partition therein defining an upbed area and a downbed area, a perforated plate beneath the container, a primary air source for providing air flow through the perforated plate into the container, such that the product moves in a circuitous path upwardly in the upbed area and downwardly in the downbed area, and a spray nozzlebody extending into the upbed area of the container with a spray nozzle for spraying a coating solution onto the product in the upbed area, the improvement comprising:an air diverter in the upbed area having a plurality of holes directed away from the spray nozzle; and a pressurized air or gas line operatively connected to the air diverter to force air radially outwardly through the holes adjacent the spray nozzle body to move the product away from the spray nozzle.