Quick change powder coating spray system
First Claim
1. A powder color change procedure for a powder spray system including a spray gun disposed proximate to a spray booth, a duct connecting the spray booth to a cyclone unit, and a vacuum line connecting the cyclone unit to a feed center, the feed center including a powder hopper containing powder of a first color, a suction tube leading from the powder hopper to a powder pump, and a spray gun tube leading from the powder pump to the spray gun, the procedure comprising the steps of:
- removing powder from the spray gun, the spray booth, the duct, the cyclone unit, the vacuum line, the suction tube, the powder pump, and the spray gun tube; and
replacing the powder of a first color with powder of a second color.
2 Assignments
0 Petitions
Accused Products
Abstract
Powder overspray that is extracted from a spray booth is recovered back to a powder supply that is used to supply powder to the spray guns inside the spray booth. The powder overspray extracted from the booth is separated from the high flow air stream by and then discharged to a feed center. By recovering overspray powder in this fashion, the time required for a color change operation in the powder spray system is greatly reduced.
5 Citations
15 Claims
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1. A powder color change procedure for a powder spray system including a spray gun disposed proximate to a spray booth, a duct connecting the spray booth to a cyclone unit, and a vacuum line connecting the cyclone unit to a feed center, the feed center including a powder hopper containing powder of a first color, a suction tube leading from the powder hopper to a powder pump, and a spray gun tube leading from the powder pump to the spray gun, the procedure comprising the steps of:
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removing powder from the spray gun, the spray booth, the duct, the cyclone unit, the vacuum line, the suction tube, the powder pump, and the spray gun tube; and
replacing the powder of a first color with powder of a second color. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification