Coating processes – Particles – flakes – or granules coated or encapsulated
Patent
1996-05-20
1999-02-02
Pianalto, Bernard
Coating processes
Particles, flakes, or granules coated or encapsulated
222235, 222240, 222241, 366246, 366296, 427420, 4274301, B05D 700
Patent
active
058662014
ABSTRACT:
A mixing system with a vessel for supplying a liquid and a device for supplying solid pieces to mix with the liquid. The system has an elongate enclosure with a first end opposing a second end. The enclosure defines a chamber in fluid communication with the vessel to receive the liquid. The chamber also has a inlet and an outlet with the inlet being closer to the first end than the outlet. The chamber receives the pieces from the device through the inlet and issues the pieces through the outlet. A motor driven mixing auger positioned in the chamber between the first and second ends rotates a selected direction about a rotational axis to intermix the liquid and pieces. The auger includes a first helical flight between the inlet and the outlet to convey the pieces from the inlet to the outlet when the shaft is rotated the selected direction. The auger also includes a second helical flight between the first flight and the second end to urge the solid pieces in a direction opposite the first flight. The second flight has a length along the rotational axis of the auger shorter than the first flight. In one variation of this system, the liquid may be a colorant and the solid pieces may include wood chips to be intermixed with the liquid to attain a uniform visual appearance.
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