electrowinning cell

portion formed on the bottom sur­face; a metal plate for an anodeplaced on the inclined portion; ametal rod for a cathode held by amotor, which can rotate the metalrod; a metal plate for the cathode,which is wound around the metalrod for the cathode; and a DCpower supply.

.lET STREAM PLATING APPARATUSUS. Patent 6,017,438. Jan. 25, 2000Y. Takayama et al., assignors toNitto Denko Corp., Osaka, Japan

Ajet stream method for producinga circuit substrate having a bumpcontact point comprising dispos­ing a positive electrode in a plat­ing solution; exposing a conduc-

tive circuit formed on aninsulating substrate, wherein theinsulating substrate is providedabove the surface of the platingsolution; disposing a jet streamopening below the surface of theplating solution and opposite theconductive circuit; and spoutingout the plating solution from the

ELECTROWINNING CELLUS. Patent 6,017,428. Jan. 25, 2000E.L. Hill and C.O. Gale, assignors toSummit Valley Equipment andEngineering Inc., North Salt Lake,Utah

An electrowinning cell assemblyfor removal of at least one pre­cious metal dissolved in an elec­trolyte solution wherein the cath­ode comprises woven wire mesh.

COPPER CATHODE ELEMENTUS. Patent 6,017,429. Jan. 25, 2000S.V. Persson, assignor to SvedalaSkega AB, Ersmark, Sweden

A cathode element for the produc­tion of electrolytic copper,wherein the cathode element isreusable and includes a cathodeplate and electrically insulatingedge strips.

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CATIONIC ELECTROCOATUS. Patent 6,017,431. Jan. 25, 2000D.J. Augustini et al., assignors toPPG Industries Ohio Inc., Cleveland

A cationic electrodepositable coat­ing composition and process forretarding the growth of bacteriain such a bath.

ELECTROCOATING COMPOSlnONUS. Patent 6,017,432. Jan. 25, 2000D.W. Boyd et al., assignors to PPGIndustries Ohio Inc., Cleveland

A method of electrocoating an elec­troconductive substrate whereinthe electrodepositable compositioncomprises an active hydrogen­containing, cationic salt group­containing resin electrodepositableon a cathode; a capped polyisocya­nate curing agent; and, optionally,a metal-containing catalyst.

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January 2001 113