Coating apparatus – Projection or spray type – Applying solid particulate material
Reexamination Certificate
2006-06-20
2010-02-23
Tadesse, Yewebdar T (Department: 1792)
Coating apparatus
Projection or spray type
Applying solid particulate material
C118S308000, C118S326000, C454S053000, C055SDIG046
Reexamination Certificate
active
07665414
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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Partial International Search Report from PCT/US06/036328 mailed Jan. 15, 2007.
Dailidas Jeffrey E.
Kreeger Kenneth
Schroeder Joseph G.
Shutic Jeffrey R.
Calfee Halter & Griswold LLP
Nordson Corporation
Tadesse Yewebdar T
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