Powder coating booth
First Claim
1. A spray booth for application of powder coating material to an object, the booth comprising a first booth wall, a second booth wall, a third booth wall and a fourth booth wall, each of said four booth walls having first and second vertical edges, each first vertical edge being hinged to a frame, each second vertical edge of respective pairs of said four booth walls being movable toward and away from each other to close and open passages for objects to move into and out of the spray booth;
- at least one spray gun to spray powder coating material on an object inside the spray booth and at least one opening to remove powder overspray from inside the spray booth, and actuators to move said second vertical edges of said respective pairs of said four booth walls towards and away from each other.
1 Assignment
0 Petitions
Accused Products
Abstract
A powder spray for lengthy parts includes a booth wall structure comprised primarily of doors. A moveable roof may be raised and lowered to clean powder overspray from the interior surfaces of the booth. A cleaning process may be performed with a sideways extraction mode and a downward extraction mode. The mode change occurs when a bulkhead that travels with the moveable roof blocks the inlet duct to the recovery system. The recovery system may be a cyclone system for example. The doors of the booth are hinged so that they can be positioned for spraying operations and cleaning operations. Live hinge designs are provided and hose stress relief designs are also provided. The roof may carry accumulators for pressurized air that feed cleaning nozzles as the roof descends. In addition, exhaust air may be used to assist cleaning the interior surfaces as the roof descends. All of the energy provided for cleaning and color change may be provided by accumulators.
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Citations
24 Claims
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1. A spray booth for application of powder coating material to an object, the booth comprising a first booth wall, a second booth wall, a third booth wall and a fourth booth wall, each of said four booth walls having first and second vertical edges, each first vertical edge being hinged to a frame, each second vertical edge of respective pairs of said four booth walls being movable toward and away from each other to close and open passages for objects to move into and out of the spray booth;
- at least one spray gun to spray powder coating material on an object inside the spray booth and at least one opening to remove powder overspray from inside the spray booth, and actuators to move said second vertical edges of said respective pairs of said four booth walls towards and away from each other.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
- 23. A spray booth for application of powder coating material to an object, the booth comprising doors with at least one door hinged for movement, said doors substantially comprising the booth wall structure, a roof that is raised and lowered within the booth interior during a powder removal operation, said roof carries a plurality of air nozzles for removing powder off of interior surfaces of said doors.
Specification