B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
32/63
B05B 7/16 (2006.01)
Patent
CA 1048772
Abstract of Disclosure This disclosure includes a color change means for and method of coating surfaces of articles with a spray of powder particles of one color or a spray including a plurality of different powder particles, the particles being entrained in a gas, such as air. The powder spray device is, preferably, an electrostatic spray device for depositing the particles of powder on a surface to be coated. A plurality of separate passageways in the spray device, one for conveying each powder, are connected to separate sources of powder. Particles of the desired powder or powders are withdrawn from the source or sources containing them. Powder particles flowing into the spray device are conveyed by the passageways to a chamber or compartment within the color change means. A flow of com- pressed air is introduced to the area where the powder particles emerge from the passageways. An induced flow of air is ad- mitted into the spray device to the rear of termination of the passageways. In operation the powder being sprayed is not retained in the device in significant quantity, a substantially uniform powder distribution is achieved in the spray pattern and the powder particles are provided with momentum sufficient to carry the particles to the vicinity of the surface to be coated.
214462
Pollard Kenneth E.
Probst Richard O.
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