Spray coating apparatus

B - Operations – Transporting – 05 – B

Patent

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32/61

B05B 1/28 (2006.01) B05B 15/04 (2006.01)

Patent

CA 2012216

Abstract of the Disclosure Apparatus for spray coating a first portion of a workpiece with a coating material while masking a second portion of the workpiece bordering the first portion, so as to preclude coating of the second portion, includes means for spraying the coating material onto the workpiece, means for moving the means for spraying with respect to the workpiece so as to coat the workpiece along the first portion, and mask means for preventing sprayed coating material from contacting the workpiece beyond the first portion. The mask means includes a rotatable mask, mounted on the means for spraying, for translational movement therewith. The rotatable mask has an edge which moves along the workpiece adjacent the border between the first and second portions. The mask means further includes means for rotating the mask as the mask moves with the means for spraying, so as to bring clean portions of the mask into proximity with the border. Finally, the mask means includes means for continuously cleaning the rotatable mask such that the coating material does not accumulate thereon to produce defects in the coating sprayed on the workpiece.

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