Powder coating removal method
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United States of America Patent
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Mar 2, 1993
Grant Date -
N/A
app pub date -
May 2, 1991
filing date -
May 2, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus is provided for removing electrostatically bonded powder coating material from a non-recessed region of a surface of a workpiece without removing powder coating material from a recessed region of the surface of the workpiece. The present invention employs a powder coating removal apparatus for removing the powder coating material from the non-recessed region. The powder coating removal apparatus comprises a rotatable drum including a hollow cylindrical portion having a plurality of openings therein. A plurality of elastic bands are connected to opposite end portions of the drum and serve to frictionally engage and agitate the powder coating material on the non-recessed region of the surface, thereby overcoming the electrostatic bond between the non-recessed region and the powder coating material thereon. A vacuum hose is placed adjacent to one, open end portion of the drum and serves to create a vacuum in the hollow cylindrical portion of the drum to remove the agitate powder coating material from the non-recessed region of the surface of the workpiece.
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