Coating processes – Direct application of electrical – magnetic – wave – or... – Electrostatic charge – field – or force utilized
Reexamination Certificate
2009-12-04
2011-11-22
Parker, Frederick (Department: 1715)
Coating processes
Direct application of electrical, magnetic, wave, or...
Electrostatic charge, field, or force utilized
C427S475000, C427S482000, C427S485000
Reexamination Certificate
active
08062713
ABSTRACT:
A method for manufacturing electrodes using an electrostatic deposition unit. In the first step of the process a mixture of magnetic carrier beads and a conductive powder is prepared in the sump of the deposition unit; the mixture forms a magnetic brush on the sleeve of the deposition unit. In the second step of the process, the substrate is positioned away from the magnetic brush to form an air gap. In the third step of the process, a voltage is applied between the substrate and the sleeve of the deposition unit in order to produce a large asymmetry between the magnetic brush and said substrate such that the electric field at the magnetic brush is at least 3.0 times as great as the electric field at the substrate. In the fourth step of the process, conductive powder is deposited onto the substrate.
REFERENCES:
patent: 3437074 (1969-04-01), Hagopian et al.
patent: 2006/0150902 (2006-07-01), Stelter et al.
patent: 2006/0247122 (2006-11-01), Hampden-Smith et al.
Hays Dan A.
Mason James
Mason Peter J.
Greenwald Howard J.
Parker Frederick
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