Electrodeposition Coating Composition U.S. Patent 5,430,078. July 4, 1995 M. Hoppe-Hoeffler ef ai., assrgnors to BASF Corp., Southfield, Mich.

An electrodeposition coating composi- tion comprising an aqueous dispersion of a water-diqxrsihle. electrically-depositable resin, and a water-soluble cellulose ether, wherein the addition of the water-soluble cellulose ether results in improved edge coverage.

Method for Forming Printed Circuits U.S. Patent $429,738. July 4, 1995 R.A. Beye& and R.J. Piascak, assignors to Gould Inc., Easflake. Ohio

A process for manufacturing printed cir- cuits comprising printing a plating resist onto an electronically conductive layer of material on one side of an elongated strip of a flexible substrate to leave exposed (1 j one or more patterns of a printed circuit: and (2) a continuous band of the conduc- tive layer along one edge of the substrate; passing the substrate through a tank cow

taining an electrolytic plating solution and at least one anode, wherein the substrate passes through the tank on a drum rotatable about a generally vertical axis; and creating an electrical potential as the substrate passes by the anode to electroplate cxposcd patlems.

Automotive Topcoats U.S. Patent 5,430,083. July 4. 1995 K. Kiier and P Be& assjgnors to EASF Lacke + Farben AG, Munster, Germany

Paints for use as topcoats for the finish- ing of automobile bodies.

Hot-Dip Coating Apparatus U.S. Patent 5,431,375. July II, 1995 J-H. Chon et al, assignors to Massachusetts Institute of Technology, Cambridge, Mass.

An apparatus for coating a substrate comprising a source of molten metal mate- rial; a chamber having one or more orifices ar one wall thereof; means for supplying the molten metal material under pressure to the chamber; heating means to maintain the material in a molten state; means for the molten material lo form one or more

streams of uniformly sized droplets: and a source for applying voltage to a charging plate whereby one or more streams of charged droplets are supplied to a substrate for uniformly coating a surface thereof.

Ceramic Abrasive Grains U.S. Patent 5,431,704 July Ii. 199.5 M. Tamamaki et al., assignors to Japan Abrasive Co. Ltd., Japan

A crystal grain comprising Al&I,-Er,O? ceramic abrasive graina consisting of two phases wherein a second phase consisting of alummum oxides and erbium oxldcs, which form reaction products and surround a first phase, and the first phase exclusive of the second phase consists essentially of alpha alumina. and wherein the size of the crystal grain conslsting of two phases is below 1 micron.

Grinding Wheel U.S. Pafanf 5,431,705. July If, 1595 W.P Wood, assrgnor ro Minnesota Minng and Manufacturing Co., St Paul, Mann.

An abrasive wheel comprising binder and abrasive grits, the abrasive grits com-

Sales and manufactur- ing locations I” 10 major U.S. indus- trial centers

Circle 013 on reader Information card

y0lHSkOf a cleaning

system, the more you need

Tally! AsK usm HELP you choose the rlghi system for your application. Our standard lines include Spray Washers, Ultrasonic Consoles. Mechanical Agttation Systems and Programmable Hoists. USE US TO DEVELOP your system reakements m our AoDlicatlons Laboratorv. If our star#dard eq;lpment doesn’l m&your needs, our e&wing staft can design a system that will. CONTACT US TO LEARN more about how Tally can help you. Our systems are cleaning parts for the aerospace, automotiw, lndustrlal and msdical industrras.Thsy can clean your parts too! CALL US FOR A FREE Equipment S&&r Guide and Product Profiles

Leaders in cleaning technology

Circle 075 on reader information card

96 METAL FINISHING ?? MARCH 1996