Chemistry: electrical and wave energy – Apparatus – Electrolytic
Reexamination Certificate
2007-04-17
2007-04-17
King, Roy (Department: 1742)
Chemistry: electrical and wave energy
Apparatus
Electrolytic
C204S22400M, C204S253000, C204S257000, C204S267000, C204S269000, C204S275100, C204S279000, C204S287000, C205S125000, C205S157000, C205S640000, C205S123000
Reexamination Certificate
active
10385999
ABSTRACT:
An improved apparatus for treating plate-like workpieces with a designated chemical solution, including printed circuit boards, includes: (1) a tray for holding the chemical solution, with the tray having an open top which is configured to receive a horizontally-oriented workpiece, with the tray having a top edge with a portion of the edge forming a dam over which the solution may flow and an opening in its lower portion where the solution can enter the tray, (2) a reservoir tank situated below the tray, (3) a feed line connecting the reservoir tank and tray opening, (4) a drain that returns the solution that overflows the tray top edge to the reservoir tank, and (5) a pump that circulates the solution from the tank to the tray and over the horizontally situated workpiece.
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Guffey Larry J.
King Roy
Modular Components National, Inc.
Zheng Lois
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