chemically in an acidic aqueous solution. The rough- ened a luminum plate may be electropolished or chemically etched.

INDUCTIVE PLASMA LOOP ENHANCING MAGNETRON

SPUTTERING U.S. 6679981 (Applied Materials Inc.) Hanawa, H.; Pan, S.X. et al. Plasma react ion chamber such as DC magnet ron sputter reactor.

METHOD FOR RECOVERY OF GOLD AND SILVER U.S. 6679984 (Summit Valley Equipment & Eng (u.s.) Weldon, TA.; Gale, G.C.O. Stripper solution to remove gold or silver from acti- vated carbon columns.

PROTECTIVE COMPOSIT ION FOR PRESSURE WASHER

AND APPLICATOR U.S. 6680001 Krueger, D.J. A composition for lubricating, prevent ing mineral deposit buildup, and expelling any standing water from the internal parts of a pressure washer, as well as a pressurized container for applying such compo- sition across the internal parts of the pressure wash- er through the water inlet valve is provided.

ELECTRICALLY CONDUCTIVE POWDER AND M A K I N G

PROCESS U.S. 6680081 (Shinetsu Chemical Co.) Aramata, M.; Fukushima, M. A conductive powder having an organic silicon poly- mer layer on the surface of each particle and a metal layer enclosing the silicon polymer layer possesses a

s t ronger bond be tween the particle base and the metal even at elevated temperature and exhibits a high and stable conductivity and heat resistance.

APPARATUS FOR ELECTROPOLISHING A STENT U.S. 6679980 (Advanced Cardiovascular System) Andreacchi, A. Apparatus and a process for electropolishing a prod- uct or metallic device made from a metal alloy. The electropolishing appara tus includes a cathode formed of a tubular member and an anode formed by the metallic device to be electropolished. Both the tubula r member and the metallic device are posi- tioned within an electrolytic solution and current is passed through the anode to effect the electropolish- ing process. The invention is useful for electropolish- ing metal stents formed of metallic alloys, such as cobal t -chromium-tungsten, in which the s tent is positioned within the tubular member and immersed in an electrolytic solution for a predetermined time. The electropolishing process using the apparatus of the invention provides an u l t rasmooth and shiny metall ic surface on the metall ic device for metal stents.

TUBULAR ELECTRODIALYSlS A N U ELECTRODEPOSITION MEMBRANE ELECTRODE DEVICE EP 1377361 (Olpiduerr SPA) Weschke, J.; Pizzamiglio, R.

APPARATUS AND METHOD FOR REMOVING HYDROGEN

PEROXIDE FROM SPENT PICKLE LIQUOR EP 1377523 (Properties Inc AK) Leeker, J.W.; Madi, V.N. Process for the removal of hydrogen peroxide from spent pickle l iquor used in a steel strip pickling

(Formerly DETREX Equipment Division)

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88 Metal Finishing