Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Forming nonmetal coating
Reexamination Certificate
2011-04-12
2011-04-12
Speer, Timothy M (Department: 1784)
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Forming nonmetal coating
C205S328000
Reexamination Certificate
active
07922889
ABSTRACT:
An anodic oxide film is formed on an aluminium or aluminium alloy work piece by forming an anodic oxide film on the work piece by AC electrolysis followed by subjecting the work piece to DC electrolysis. The AC anodizing step may be conducted at a voltage of 5 to 30V for 30 seconds to 10 minutes and the DC anodizing step may be conducted at a voltage of 5 to 30V for a period of 1 to 20 minutes. The anodic oxide coating is suitable for adhesive bonding of aluminium alloy work pieces.
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Ashcroft Ian
Bahrani David
Cartwright Timothy
Critchlow Gary
Short Brothers PLC
Speer Timothy M
Thomas & Karceski, P.C.
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