Coating apparatus – Projection or spray type – Applying solid particulate material
Reexamination Certificate
2007-07-24
2007-07-24
Tadesse, Yewebdar (Department: 1734)
Coating apparatus
Projection or spray type
Applying solid particulate material
C118S684000, C118S308000
Reexamination Certificate
active
11419621
ABSTRACT:
An apparatus for applying powder coating material onto large objects such as automotive, truck or other vehicle bodies includes a powder spray booth defining a controlled area within which to apply powder coating material onto the vehicle bodies, a powder kitchen located at a remote position from the powder spray booth, and, a number of feed hoppers located proximate the booth which receive powder coating material from the powder kitchen and supply it to automatically or manually manipulated powder spray guns associated with the booth. Oversprayed powder coating material is removed from the booth interior by a powder collection and recovery system which transmits the oversprayed powder back to the powder kitchen for recirculation to the powder spray guns.
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Fischer, John “Practical Pneumatic Conveyor Design” Chemical Engineering, pp. 114-118, Jun. 1958.
Carlson John F.
Fena Ernest J.
Hollstein Thomas E.
Lader Harry J.
Shutic Jeffrey R.
Calfee Halter & Griswold LLP
Nordson Corporation
Tadesse Yewebdar
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